Mcb 112 Vlt - Danfoss FC 300 Design Manual

8. Options and Accessories
Power-up delay
The inputs are protected.
Terminal numbers:
Follow these steps:
1.
2.
3.
4.
5.
6.
When MCB 107, 24 V backup option is sup-
plying the control circuit, the internal 24 V
supply is automatically disconnected.
8

8.1.13. MCB 112 VLT

The MCB 112 option makes it possible to monitor the temperature of an electrical motor using a
PTC thermistor input. It is a B-option for the VLT® AutomationDrive FC 302 with Safe Stop.
For information on mounting and installing the option, please see
Slot B
X44/ 1 and X44/ 2 are the thermistor inputs, X44/ 12 will enable safe stop of the FC 302 (T-37)
if the thermistor values make it necessary, and X44/ 10 will inform the FC 302 that the request
for safe stop came from the MCB 112 in order to ensure appropriate alarm handling.
X44/ 1 and X44/ 2 are the thermistor inputs, X44/ 12 will enable safe stop of the FC 302 (T-37)
if the thermistor values make it necessary, and X44/ 10 will inform the FC 302 that a request for
safe stop came from the MCB 112 in order to ensure appropriate alarm handling. One of the digital
Inputs of the FC302 (or a DI of a mounted option) must be set to PCT Card 1 [80] in order to use
the information from X44/ 10. Par. 5-19 Terminal 37 safe stop must be configured to the desired
safe stop functionality (default is Safe Stop Alarm).
160
Terminal 35: - external 24 V DC supply.
Terminal 36: + external 24 V DC supply.
Remove the LCP or blind cover.
Remove the terminal cover.
Remove the cable decoupling plate
and the plastic cover underneath.
Insert the 24 V DC backup external
supply option in the option slot.
Mount the cable decoupling plate.
Attach the terminal cover and the
LCP or blind cover.
®
PTC Thermistor Card
earlier in this section.
MG.33.B9.22 - VLT
8.4: Connection to 24 V backup supply on frame
sizes A2 and A3.
8.5: Connection to 24 V backup supply on frame
sizes A5, B1, B2, C1 and C2.
Mounting of Option Modules in
® is a registered Danfoss trademark.
FC 300 Design Guide
< 0.6 s