Lauda MC 250, Operating Instructions Manual, Page: 31 / 72

 View of flange connector (front) or solder side coupling socket
 Max. 30 V DC; 1 A
Fig. 11: Flange connector (front) in idle state
1 Normally open contact
2 Centre
3 Normally closed contact
Idle state
 The device is in idle state when it is switched off and in the
case of failure.
 Pins 1 and 2 are open.
 Pins 3 and 2 are closed.
GO state
 The device is in GO state immediately after switching on and
during normal operation without faults.
 Pins 1 and 2 are closed.

Pins 3 and 2 are open.
Note the following:

The equipment connected to the low voltage inputs and out-
puts must have safe separation from dangerous voltages
according to DIN EN 61140 such as by double or reinforced
insulation according to DIN EN 60730-1 or DIN 60950-1.

Only use shielded connection cables; connect the shield to the
connector case. Cover unused plug connections with protective
caps.
Before commissioning
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