Mcb 112 Ptc Thermistor Card - Danfoss FC 300 Design Manual

FC 300 Design Guide
Illustration 10.4: Connection to 24 V back-up supply on
frame sizes A5, B1, B2, C1 and C2.

10.7 MCB 112 PTC Thermistor Card

The MCB 112 option makes it possible to monitor the temperature of an electrical motor through a PTC thermistor input. It is a B-option for
AutomationDrive FC 302 with Safe Stop.
For information on mounting and installation of the option, please see
Application Examples
for different application possibilities.
X44/ 1 and X44/ 2 are the thermistor inputs, X44/ 12 will enable safe stop of the AutomationDrive FC 302 (T-37) if the thermistor values make it necessary
and X44/ 10 will inform the AutomationDrive FC 302 that a request for Safe Stop came from the MCB 112 in order to ensure a suitable alarm handling.
One of the Digital Inputs of the AutomationDrive FC 302 (or a DI of a mounted option) must be set to PCT Card 1 [80] in order to use the information
Terminal 37 Safe Stop
from X44/ 10. par. 5-19
Alarm).
Mounting of Option Modules in Slot B
Terminal 37 Safe Stop must be configured to the desired Safe Stop functionality (default is Safe Stop
MG.33.BC.02 - VLT ® is a registered Danfoss trademark
10 Options and Accessories
earlier in this section. See also chapter
10
217