Input And Output Circuit Of Interlock; Interlock Connector Connecting Samples - Panasonic LP-M Series Maintenance Manual

3-7-2 Input and output circuit of interlock

Power supply for
laser source

3-7-3 Interlock connector connecting samples

Connect between INTERLOCK IN and INTERLOCK COM. with the non-voltage contact (relay output terminal etc.) of the
safety devices such as door, switch or safety PLC.
• INTERLOCK IN on the interlock connector are connected to the operating coil of the internal relay in the controller.
Connect INTERLOCK IN (No.3) and INTERLOCK COM. (No.1) with the non-voltage contact (dry contact) such as a relay
or a switch. Do not connect with the voltage contact such as a transistor.
INTERLOCK 1
connector
INTERLOCK 2
connector
• In the attached interlock connectors, INTERLOCK IN and INTERLOCK COM. are short-circuited at the delivery state.
• It is recommended to connect the interlock connectors to the external safety device by using the relay output terminal of
the safety relay unit or the safety PLC. Refer to "Construction of interlock system" (P.26).
116
Inner circuit of laser marker
Safety relay
Safety relay
1. INTERLOCK 1 COM.
2. FEEDBACK 1 OUT
1 2
3
3. INTERLOCK 1 IN
1. INTERLOCK 2 COM.
2. FEEDBACK 2 OUT
2
1
3
3. INTERLOCK 2 IN
+24V DC
Pin No. 1. INTERLOCK 1 COM.
Pin No. 3. INTERLOCK 1 IN
15mA
Pin No. 2. FEEDBACK 1 OUT
Pin No. 2. FEEDBACK 2 OUT
+24V DC
Pin No. 1. INTERLOCK 2 COM.
Pin No. 3. INTERLOCK 2 IN
15mA
ME-LPM-SSM-10
Capacity:
+24V DC
1A
Safety PLC
N.O.
(Output from PLC)
Monitoring
(Input to PLC)
N.O.
(Output from PLC)