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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
Mounting of Option Modules in Slot B
earlier in this section. See also chapter
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
from X44/ 10. par. 5-19
Terminal 37 Safe Stop
Terminal 37 Safe Stop must be configured to the desired safe stop functionality (default is Safe Stop
Alarm).
ATEX Certification with AutomationDrive FC 302
The MCB 112 has been certified for ATEX which means that the AutomationDrive FC 302 together with the MCB 112 can now be used with motors in
potentially explosive atmospheres. See the MCB 112 Instruction Manual for more information.
ATmosphère EXplosive (ATEX)
FC 300 Design Guide
10 Options and Accessories
MG.33.BC.22 - VLT
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is a registered Danfoss trademark
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