AB-MSR22LM-PSDI

LIGHT CURTAIN GUARD, MUTE and PSDI MODULESICHERHEITSLICHTVORHANG MUTING MODULMODULE POUR BARRIERE IMMATERIELLE

MINOTAURMSR22LM

Approvals and marking

Typical Applications

Indicators

Block diagram

Terminal Identification

ATTENTION

X44

S12 S14

galvanic separation

S41 S42S44S43

monitoringlogic 1

monitoringlogic 2

galvanicseparation

galvanicseparation

48 58

K1 K1 K2K2Run1 Run2

K1

K2

PTC

A2A1+ M2M1 13 23 31

14 24 32

S31S32S34 S33S21S22S24 S23

118mm (4.6in) 45mm (1.8in)

86mm(3.4in)

ET

M1 X44

A1+

S23S24S221

13S21S14S1248

58A2-

3123

2414S41

S33S31M2

S34S32

S44S42 S43

32

Lower green LEDs K1, K2Upper amber LEDs Run1, Run 2

- on when K1 and K2 are energized.- permanent on when unit is in operation.- flashing continuously when unit waits for

start signal after voltage has been supplied or fault has been detected.

- provides diagnostics by certain flashing sequences.

1. Installation, setup, and checkout must be carried out by qualified personnel.2. Before removing the front plate the person must be discharged to

ground.3. The muting lamp must be conform to IEC/EN61496-1 section A.7.4:

size >1cm2, brightness > 200 cd/m2. Color white preferred.4. Performance checks should be performed at least every 6 months and

should include verifying lock outs under single fault conditions.

1

FeaturesDimensions

According to EU-directive for machines 98/37/EGAccording to IEC/EN60204-1, DIN VDE0113-1, EN954-1, IEC/EN61946-1, IEC60947-5-1Safety Category 4 according to EN954-1Operations (switch selectable)

- Guard Only- Muting- Presence Sensing Device Initiation (PSDI)

Maximum Connections- 3 light curtains 2-channel or- 2 light curtains 2-channel, and 2 muting sensors, 1-channel or- 1 light curtain 2-channel and 4 muting sensors, 1-channel or-2 light curtains and key switch for PSDI operations

Outputs- 2 NO safety, voltage free- 1 NC auxiliary, voltage free

Response Time: 23msSuitable to connect light curtains of type 4 or self-testing light curtains of type 2, according to IEC/EN61496-1, Crossfault monitoring must be performed by the light curtain.

Robot cellsMechanical power pressesHydraulic pressesPress brakesMaterial handlingConveyorsPackaging machinesMoulding machines

ATTENTION - Not all MSR22LM functions apply to all applications. Check applicable standards.

Technical Data

Front plate

03

6

03

6

03

6

03

6

CH1 CH2

10

1

Inside view

Switch 1

Switch 10

The function setting is made by 4 rotational switches behind the front plate (see figure above). The switches on the left make the setting for processor 1 (LED run 1) and the switches on the right for processor (LED run 2). The same functions must be set for both processors. On the upper switches (1) the main function is adjusted. On the lower switches (10) the setting of the muting time (Protective operation) or the number of breaks (PSDI operation) is adjusted.

9

9 9

9

2

InputRated operational voltage Ue: 24 VDCVoltage range: 0,85 ... 1,15 Ue

( at max. 5 % residual ripple)Nominal consumption: max. 170 mA

(no load on semiconductor outputs)Control voltage onS21, S23, S31, S33, S41,S43, S48, S58: 23 VDC at UeControl current onS12, S14, S22, S24,S32, S34, S42, S44: each 4,5 mA at UNMin. voltage on terminalsS12, S14, S22, S24, S32,S34, S42, S44: 16 VDCShort circuit protection: internal with PTCMin. current on M1, M2: 25 mA with active lampMax. current on M1, M2: 100 mA with active lamp

OutputContacts: 2 NO Safety, 1 NC AuxiliaryContact type: Relay, positive guidedDelay at powerup

Manual start 50 msAutomatic restart 40 ms

Response time: 23 msOutput voltage: AC 250 V

DC: see Arc limit curve

Switching of low loads: >100 mVThermal current Ith: 5ASwitching capacity

AC 3 A / 230 V IEC/EN60947-5-1for NO contactAC 2 A / 230 V IEC/EN60947-5-1for NC contact

Electrical lifeto AC 15 at 2 A, AC 230 V: 105 switching cycles IEC/EN60947-5-1Max. switching frequency: 1 200 switching cycles / hShort circuit strengthmax. fuse rating: 6 A gL IEC/EN60947-5-1line circuit breaker: C 8 AMechanical life: 10 x 106 switching cycles

Semiconductor outputsOutput (terminal 48 and 58): Transistors, PNP outputsOutput Voltage: 24VDC

100mA max. continuous current,400mA max. for 0.5s internal short circuitovertemperature, and overloadprotection

General data

Temperature range: 0˚C (+32˚F) to + 50˚C (122˚F)Degree of Protection: Must be installed in IP54 housing

Housing: IP40Terminals: IP20

Housing Material: Thermoplastic UL94VO ratedVibration: 0.35mm, 10-55HzShock: 10g, 16ms, 1000 per axis, 3 axisWire Connections: 1 x 2,5mm2 stranded ferruled (14AWG)

1 x 4mm2 solid (12AWG)2 x 1,5mm2 stranded ferruled (16AWG)

Mounting: 35mm DIN railWeight: 320g (0.71lbs)

Arc limit curve under resistive load

Switching current I [Amps]

Sw

itchi

ng v

olta

ge U

[Vol

ts]

safe breaking, no continuous arcing under the curve, max.1 switching cycle/s

0

50

100

200

250

150

1 2 3 4 5 6 7 8

The failure codes are displayed by a flashing sequence of the upper amber LEDs (Run1 and Run 2). It is possible that both microprocessors show different failure codes.

No. ofFlashes Description Measures and hints

0 Internal fault (LEDs off) If both LEDs are off the relay isdefective and has to be sent back forexamination.

1 LC fault on start 1) The protected area on all connectedLCs must be free.

2) All LC inputs that are unused mustbe bridged, terminals S21/S22,S23/S24, S31/S32, S33/S34.

2 Fault on start button 1) During start up of the unit and initializing the start button must notbe pressed.

2) The start button must not bepressed longer than 3s.

3 Fault on machine The machine contact must be closedcontact (PSDI) when power is connected.

4 Fault on muting 1) The sequence of signals from mutingsensors and LC must be identicalwith the unit settings.

2) The muting signals have a timeoutfunction. A signal change has nottaken place within the expectedtime period.

3) The muting lamp is defective orconnected in a wrong way.

4) The monitoring function of themuting lamp is defective, the unithas to be replaced.

5) The complete muting cycle is longerthan the selected muting time.

6) Missing S41/S42 link.

DiagnosticsNo. ofFlashes Description Measures and hints

5 Faulty setting 1) The switches on both channels arenot identical.

2) The selected setting is not allowed.

6 Undervoltage detection 1) The left LED is flashing when thevoltage drops under the allowedlevel of < approx 0,85 Ue of thenominal voltage.

Overvoltage detection 2) The right LED is flashing when the voltage rises over the allowedlevel of >approx. 1,15 Ue +5%residual ripple.

7 Input fault 1) A short circuit occurred on the start button or machine contact.

2) Both signals of one LC are notidentical (short circuit, brokenwire or non-functioning LC).

8 Fault on output contacts Check the output circuit andcontact current.

9 Internal fault Try to evaluate the circumstances that10 led to this fault.

11

12 Internal fault Replace unit.13

3

Guard Only Mode

4

Internal Switch Settings

Switch 10: no function

Guard Only Mode

Automatic Restart LC1 Both switches (10) must

1

0

0

1 2 3 4 5 7 8 96

Manual Start/Restart be in the same position

Sw

itch

1

Power supply(A1/A2)

Start/Restartbutton (S43/S44)

LC1 (S12/S14)

K1, K2(13/14, 23/24)

Start/Restart Required (58)

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Power supply(A1/A2)


LC1 (S12/S14)

LC2 (S22/S24) orLC3 (S32/S34)

K1, K2(13-14, 23-24, 33-34)

Start/Restart Required (58)

onflashingdark

LC1

+-

S21 S22S12 S14 S31 S32 S34 S33S24 S23

Transmitter

Typical Application

Unused inputs linked

MSR22LM

Automatic Restart LC1Schematic 1 shows a typical guard only mode application using three light curtains with automatic restart of LC1 selected.

1. After powerup, the Start/Restart Required lamp will turn on. Press and release the Start/Restart button. Upon release, K1 and K2 energize if all three light curtains are clear.2. Interrupting LC1 causes K1 and K2 to de-energize and Start/Restart lamp flashes.3. Clearing LC1 automatically causes K1 and K2 to energize as long as LC2 and LC3 are clear.4. Interrupting LC2 or LC3 causes K1 and K2 to de -energize and the Start/Restart lamp flashes.5. After clearing LC2 or LC3, press the Start/Restart button to energize K1 and K2.

LC2 (S22/S24) orLC3 (S32/S34)

Manual Start/RestartSchematic 2 shows a typical guard only mode application using three light curtains with manual start/restart selected.

1. After powerup, the Start/Restart Required lamp will turn on. Press and release the Start/Restart button. Upon release, K1 and K2 energize if all three light curtains are clear. The Start/Restart lamp turns off.2. Interrupting LC1, LC2 or LC3 causes K1 and K2 to de-energize and the Start/Restart lamp flashes.3. The Start/Restart Required lamp turns on when the light curtains are cleared.4. Press and release the Start/Restart button to energize K1 and K2. The Start/Restart Lamp turns off.

LC1

+-

S21 S22S12 S14 S31 S32 S34 S33S24 S23

Transmitter

MSR22LM

Interlock or e-stop inputsATTENTION: The MSR22LMdoes not detect crossfaults.

Unused InputsUnused inputs must be linked or can be used as dual channel, normally closed, direct opening gate interlocks or e-stops, if allowed by a risk assessment. Crossfaults (shorts between S22 & S24 and S32 & S34) are not detected.

Schematic 1: Typical guard only mode with 3 LCs and Auto Restart LC1

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Or

Indi

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PowerMaintainedPush Button

A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

Fuses

K3 K4

MSR22LMAuto Restart LC1

24V DC

24V Ground

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ER

SEN

DER

REC

EIV

ER

SEN

DER

REC

EIV

ER

Light Curtain LC3

Start/Restart

MomentaryPush Button

OSSD 1

OSSD 2

K3(Aux)

K4(Aux)MachineStartMomentaryPush Button

Machine StopMomentaryPush Button

K1

K2

00

xx

Light Curtain LC2

OSSD 1

OSSD 2

Light Curtain LC1

LatchingE-Stop

Start/RestartRequired


M

K3

K4

L1 L2 L3

Contact Protectione.g. Thermal Cut Out

Fuses

Safety Contactorsor Safety Control Relays

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Or

Indi

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A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

M

K3

K4

L1 L2 L3


Fuses

Fuses

K3 K4

MSR22LMManual Start/Restart

24V DC

24V Ground

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ER

SEN

DER

REC

EIV

ER

SEN

DER

REC

EIV

ER

Light Curtain LC3

Start/Restart


OSSD 1

OSSD 2

K3(Aux)



K1

K2

11

xx

Light Curtain LC2

OSSD 1

OSSD 2

Light Curtain LC1

LatchingE-Stop


Schematic 2: Typical guard only mode with 3 LCs and Manual Start/Restart

5

Muting Mode, 2-Sensor


Switch 10: max. muting time2-Sensor Muting 6-9

2 Auto Restart LC1 notimelimit3 Manual Start/Restart

10 s 20 s 30 s 1 min 5 min 1 hr

Swit

ch 1

Sequence: MS1 ⇓ MS2 ⇓ muted LC1⇓⇑ MS2⇑ MS1⇑⇓ = signal interrupted ⇑ = signal present

Machine

mut

edLC

1

MS1 MS2

Material Conveyor

LC1, muted,

Muting Sensor 1

Muting Sensor 2

Muting lamp

Muting lampmonitoring

t <

50m

s2 t <

50m

s2t <

30m

s1 t <

30m

s1

30ms < t < 3s

Muting time monitoring

1 2t +t <t<3s 30ms < t < 3s

monitored operation

Muting lamp

LC2

MutingMuting is the temporary, automatic disabling of the protective function of a light curtain. This function is used to transport material though a light curtain without stopping the machine. The differentiation between material and persons is done by muting sensors, which have to create a certain switching together with the light curtain when material passes the light curtain.

The muting cycle is indicated by a muting lamp that is controlled and monitored by the MSR22LM. The maximum muting time can be set in 6 steps between 10s and infinite.

0 1 2 3 4 5

Power Supply(A1/A2)

Start/RestartButton (S43/S44)

K1, K2(13/14, 23/24)

2-Sensor MutingLight curtain LC1 and the muting sensors must be arranged according to the Setup diagram. Setup must take into account material size, shape and speed.

Schematics 3 and 4 show typical applications for 2 light curtains with 2-sensor muting. For both applications, LC1 is the only light curtain muted. LC2 functions in guard only mode in both schematics. For both applications, the Start/Restart button must be pressed and released to energize K1 and K2 after power is applied. If LC2 is not needed, then links, e-stops, or interlocks are needed on terminals S21/S22 and S23/S24 (see Unused Inputs on page 4). A key-operated switch can be used to operate the conveyor and clear the light curtain in the event of a lockout while material is interrupting LC1.

Schematic 3 shows the setup for automatic restart of LC1. If LC1 is interrupted during a non-muting sequence, the MSR22LM de-energizes K1 and K2. When LC1 is cleared, K1 and K2 are automatically energized (if LC2 is also clear). Interrupting LC2 de-energizes K1 and K2. After clearing LC2, the Start/Restart button must be pressed and released to energize K1 and K2.

Schematic 4 shows the setup for manual start/restart. If LC1 or LC2 are interrupted and then cleared, the Start/Restart must be pressed and released to energize K1 and K2.

Start/RestartRequired (58)

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Setup

ATTENTION: The muting sensors must be arranged so a person cannot activate the muting sensors in the same switching sequence as the material and enter the area when the hazardous condition exists. To help accomplish this, the user can select either 2-sensor or 4-sensor muting. Additional guarding may also be necessary.

In the timing diagram, "monitored operation" is the phase where the MSR22LM differentiates between persons and material.

1. After powerup, the Start/Restart lamp turns on. Press and release the Start/Restart button. Upon release, K1 and K2 energize if both light curtains and the muting sensors are clear.2. The muting sequence starts by blocking sensor 1, then sensor 2. After sensor 2 is blocked, the muting lamp turns on.3. LC1 is muted and the material must break LC1 within 3.05s.4. As the material passes LC1, it must clear sensor 2 and then sensor 1.

If the muting cycle is not completed in the proper sequence or within the set time limits, the MSR22LM will go in to a lockout state with K1 and K2 de-energized and the amber RUN LED's flashing. See the Diagnostics section on page 3 for troubleshooting hints.

2-sensor muting allows the material to move through LC1 in both the forward and reverse directions.

6

Timing Diagram

Schematic 3: Typical 2 light curtains with 2-sensor muting and Auto Restart LC1

Schematic 4: Typical 2 light curtains with 2-sensor muting and Manual Start/Restart

7

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A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

K3 K4

MSR22LMAuto Restart LC1

2 Sensor Mute30sec Mute

24V DC


24V Ground

SEN

DER

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ERR

ECEI

VER

Light CurtainLC2 - not muted

Light CurtainLC1 - muted Muting

Lamp


Start/Restart

MomentaryPushbutton

MutingSensors

OSSD 1

OSSD 2

K3(Aux)



K1

K2

KeySwitch

22

22

MS1

MS2

Latching E-Stop

M

K3

K4

L1 L2 L3


Fuses

Aux

iliar

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it(A

larm

Or

Indi

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A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

M

K3

K4

L1 L2 L3


Fuses

K3 K4

MSR22LMManual Start

2-Sensor Mute30sec Mute

24V DC


24V Ground

SEN

DER

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ERR

ECEI

VER

Light CurtainLC2 - not muted

Light CurtainLC1 - muted Muting

Lamp


Start/Restart

MomentaryPushbutton

MutingSensors

SENDER

OSSD 1

OSSD 2

RECEIVER

K3(Aux)



K1

K2

KeySwitch

33

22

MS1

MS2

•••

•

Latching E-Stop

Muting Mode, 4-Sensor


Switch 10: max. muting time4-Sensor Muting 6-9

Auto Restart LC1 notimelimitManual Start/Restart

10 s 20 s 30 s 1 min 5 min 1 hr

Swit

ch 1

Sequence: MS1⇓ MS2⇓ LC1⇓ MS3⇓ MS4⇓ MS1⇑ MS2⇑ LC1⇑ MS3⇑ MS4⇑⇓ = signal interrupted, ⇑ = signal present

monitored operation

MutingMuting is the temporary, automatic disabling of the protective function of a light curtain. This function is used to transport material though a light curtain without stopping the machine. The differentiation between material and persons is done by muting sensors. The muting sensors create a certain switching sequence together with the light curtain when material passes the light curtain.

The muting cycle is indicated by a muting lamp that is controlled and monitored by the MSR22LM. The maximum muting time can be set in 6 steps between 10s and infinite.

Power Supply(A1/A2)Start/RestartButton (S43/S44)

K1, K2(13/14, 23/24)

4-Sensor MutingLight curtain LC1 and the muting sensors must be arranged according to the Setup diagram. Setup must take into account material size, shape and speed.

Schematics 5 and 6 show typical applications for one light curtains with 4-sensor muting. For both applications, the Start/Restart button must be pressed and released after power is applied. A key-operated switch can be used to operate the conveyor and clear the light curtain in the event of a lockout while the material is interrupting LC1.

Schematic 5 shows a typical application for automatic restart of LC1. If LC1 is interrupted during a non-muting sequence, the MSR22LM de-energizes K1 and K2. When LC1 is cleared, K1 and K2 are automatically energized.

Schematic 6 shows a typical application for manual start/restart. If LC1 is interrupted, the Start/Restart must be pressed and released to energize K1 and K2.

onflashingdark

Timing Diagram

ATTENTION: The muting sensors must be arranged so a person cannot activate the muting sensors in the same switching sequence as the material and enter the area when the hazardous condition exists. To help accomplish this, the user can select either 2-sensor or 4-sensor muting. Additional guarding may also be necessary.

In the timing diagram, "monitored operation" is the phase where the MSR22LM differentiates between persons and material.

1. After powerup, the Start/Restart lamp turns on. Press and release the Start/Restart button. Upon release, K1 and K2 energize if the light curtain and the muting sensors are clear.2. The muting sequence starts by blocking sensor 1, then sensor 2, after which the muting lamp turns on.3. The material must break LC1 within 3.05s.4. The material must then block sensors 3 and 4 before clearing sensors 1 and 2.5. After clearing sensor 3, the muting lamp turns off.6. The material clears sensor 4 to complete the muting cycle.

LC

Machine Material Conveyor

MS3MS4 MS2 MS1

Muting lamp

mut

edLC

1

LC1, muted

Muting Sensor 1

Muting Sensor 3

Muting Sensor 2

Muting Sensor 4

Muting Lamp

Muting Lamp Monitoring

t <

50m

s

t <

50m

s

30m

s <

t

30m

s <

t <

3s

30m

s <

t <

3s

30m

s <

t <

3s

30m

s <

t <

3s

30m

s <

t <

3s

30m

s <

t <

3s

30m

s <

t <

3s

t <

30m

s

t <

30m

s

Muting time monitoring

Material can only move in one direction with 4-sensor muting.

8

Setup

4

5

0 1 2 3 4 5

Schematic 5: Typical 1 light curtain with 4-sensor muting and Auto Restart LC1

Schematic 6: Typical 1 light curtain with 4-sensor muting and Manual Start/Restart

9

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A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

M

K3

K4

L1 L2 L3


Fuses

MSR22LMAuto Restart

4-Sensor Mute1hr Mute

24V DC

24V Ground

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ER

Light CurtainLC1

MutingIndicator


Start/Restart

MomentaryPushbutton

MutingSensors K3(Aux)



K1

K2

44

55

K3 K4Safety Contactorsor Safety Control Relays

Key Switch

MS3

MS4

MS1

MS2

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A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

M

K3

K4

L1 L2 L3


Fuses

MSR22LMManual Start

4-Sensor Mute1min Mute

24V DC

24V Ground

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ER

Light CurtainLC1

MutingLamp

Start/Restart

MomentaryPushbutton

MutingSensors

K3(Aux)



K1

K2

55

33

K3 K4 Safety Contactorsor Safety Control Relays

Key Switch

MS3

MS4

MS1

MS2


Latching E-Stop

To enable the machine at start-up on PSDI operation, one of the following two different start sequences can be chosen.1. Press and release the Start/Restart button and then break LC1 the required number of times, or2. Break LC1 the required number of times and then press and release the Start/Restart button.

10

Typical Application Start Sequence

Presence Sensing Device Initiation (PSDI ) Mode


Switch 10: Number of breaksPSDI operation 0 1 2 3 4 - 9

6Break Before Start,Short Contact Cycle

selec-7 Single

breakDouble break

Triplebreak

notBreak Before Start,Long Contact Cycle

by key all-

8 switchowedStart Before Break,

Short Contact Cycle

9Start Before Break,Long Contact Cycle

Swit

ch

1

Start Before Break Timing Diagram

Break Before Start Timing Diagram

Double break example


Machine Cycle(S41/S42)

Machine Cycle(S41/S42)


LC1 (S12/S14)

LC2 (S22/S24) orLC3 (S32/S34)

K1 (13/14) andK2 (23/24)

PSDI Mode (48)


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Power supply(A1/A2)

Start/restartbutton (S43/S44)

LC1 (S12/S14)

LC2 (S22/S24) orLC3 (S32/S34)

K1 (13/14) andK2 (23/24)

PSDI Mode (48)


onflashingdarktable

PSDI operation enables automatic restart of a machine after a certain number of accesses into the protected area through a light curtain. This operation requires a two step process: 1) a start sequence followed by 2) a normal sequence.

Schematics 7 and 8 show typical applications for PSDI operation. In both applications, only LC1 performs the PSDI operation; light curtains LC2 and LC3 operate in Guard Only mode. If either LC2 or LC3 are broken, K1 and K2 will turn off. After the light curtain(s) is cleared, the Start/Restart button must be pressed and released to turn K1 and K2 back on. The MSR22LM returns to the normal sequence.

Schematic 8 shows a typical application with a 3-way maintanined key switch, which can be used to set and change the number of breaks without cycling power. The switch must only be turned when K1 and K2 are de-energized. A new number of breaks is signaled by the PSDI lamp being on. Press the Start/Restart button to restart the unit

Power supply(A1/A2)

11

Presence Sensing Device Initiation (PSDI ) Mode

Break Before StartShort Duration Machine Cycle Contact

Long Duration Machine Cycle Contact

Short Duration Machine Cycle Contact


LC1 (S12/S14)

Machine cycle contact(S41/S42)

K1 (13/14) andK2 (23/24)

PSDI Mode (48)


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LC1 (S12/S14)

Machine cycle contact(S41/S42)

K1 (13/14) andK2 (23/24)

PSDI Mode (48)


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Normal sequenceA correct starting sequence is necessary to run the normal operating sequence. In the normal operating sequence the machine movement is signaled to the MSR22LM by opening and closing of the machine contact. The output contacts of the MSR22LM are opened when the machine contact opens. After that the operator must interrupt the LC for the required number of times to restart the machine operation. All necessary breaks must be completed within 30s. The request to access the machine is signaled by a flashing lamp (terminal 48). When the required number of interruptions on the LC is completed the lamp goes off and the contacts K1 and K2 close.

A normally closed machine contact must be connected to the terminals S41 and S42 of the MSR22LM. The opening and closing of this contact depends on the machine setup and must be either short or long duration. Internal selector Switch 1 must be set to correspond to the cycle duration (see Internal Switch Settings on page 10).

In this mode, interruptions of LC1 must only be done when the machine contact has been opened and closed again. An exception is when an interruption is started while the contact is open and still is going on while the contact closes (the hashed area in the timing diagram below).

In this mode, interruptions are accepted while the machine contact is open. The machine is only enabled when the interruptions are completed and the machine cycle contact is closed again.


Schematic 8 shows a typical application where the number of breaks is changed by a key-operated switch. To enable the change, K1 and K2 must be de-energized. This can be accomplished by breaking one of the light curtain inputs, which maintains the machine cycle contact in the closed position. After changing the key switch setting, the start sequence must be performed followed by the normal sequence. The timing diagram shows an example of a change to single break for Break Before Start and Short Duration Cycle Contact setting.

Changing Breaks with Key Switch

Single break example

Key Switch(S32/S34)

Machine Contact(S41/S42)

LC1 (S12/S14)

LC2 (S22/S24)

K1 (13/14) andK2 (23/24)

PSDI Mode (48)



onflashingdark

Key Switch Change

StartSequence

NormalSequence

Drg No: 23992 / Issue No: 2

R

Schematic 7: Typical PSDI Mode, LC1

Schematic 8: Typical PSDI Mode, LC1 - with Key Switch SettingA

uxili

ary

Cir

cuit

(Ala

rm O

r In

dica

tion)


A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

Fuse

K3 K4

MSR22LMPSDI

Break/Start, ShortKey switch set

24V DC

24V GroundStart/Restart

Required

Start/Restart


SEN

DER

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ERR

ECEI

VER

K1

K2

66

00

Light Curtain 2Guard Only

OSSD 1

OSSD 2

Light Curtain 1PSDI

PSDI

Machine Cycle M

K3

K4

L1 L2 L3


Fuses

Safety Contactorsor Safety ControlRelays

Aux

iliar

y C

ircu

it(A

larm

Or

Indi

catio

n)


A1 3113 23

A2 M1 M2 48 58 S41 S42S43 S44

S12 S14 S21 S22 S23

X44

S24 S31 S32 S33 S34

3214 24

Fuse

K3 K4

MSR22LMPSDI

Break/Start, ShortDoublebreak

24V DC

24V Ground

OSSD 1

OSSD 2



Start/Restart


OSSD 1

OSSD 2

K1

K2

66

22


SEN

DER

SEN

DER

SEN

DER

OSSD 1

OSSD 2

REC

EIV

ERR

ECEI

VER

REC

EIV

ER

Light Curtain 1PSDI

PSDI

Machine Cycle

LatchingE-Stop

M

K3

K4

L1 L2 L3


Fuses


KeySwitch

No. of Breaks

123

AB-MSR22LM-PSDI

Documents

5mm2 stranded

arc limit

powermaintained

startrestart

30ms t2 lt

k4 contact

startrestart

safety control