Ptc Thermistor Card Mcb - Danfoss VLT AutomationDrive FC 300 Design Manual

Options and Accessories
Terminal Numbers:
Terminal 35: - external 24 V DC supply
Terminal 36: + external 24 V DC supply
To install the 24 V Backup Option MCB 107, follow these
steps:
1. Remove the LCP or blind cover
2. Remove the terminal cover
3. Remove the cable decoupling plate and the
plastic cover underneath
4. Insert the 24 V DC backup external supply option
in the option slot
5. Mount the cable decoupling plate
6. Attach the terminal cover and the LCP or blind
cover
When MCB 107, 24 V backup option is supplying the
control circuit, the internal 24 V supply is automatically
disconnected. For more information on installation, consult
the separate instructions that accompany the optional
equipment.
Figure 9.14 24 V Backup Power Supply Connection
MG34S222
Design Guide

9.7 PTC Thermistor Card MCB 112

The MCB 112 option makes it possible to monitor the
temperature of an electrical motor through a galvanically-
isolated PTC thermistor input. It is a B-option for FC 302
with Safe Torque Off (STO).
For information on mounting and installing the option, see
the instructions that accompany it. For different
application possibilities, see .
X44/1 and X44/2 are the thermistor inputs. X44/12 enables
safe torque off of the FC 302 (T-37) if the thermistor values
make it necessary, and X44/10 informs the FC 302 that a
request for safe torque off has come from the MCB 112 to
ensure suitable alarm handling. One of the digital inputs of
the FC 302 (or a DI of a mounted option) must be set to
PTC Card 1 [80] in order to use the information from
X44/10. 5-19 Terminal 37 Safe Stop must be configured to
the desired safe torque off functionality. Default is safe
torque off alarm.
MS 220 DA
Motor protection
MCB 112 PTC Thermistor Card
X44
Figure 9.15 Installation of MCB 112
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
Option B
Code No.130B1137
Reference for 10, 12
11
10 20-28 VDC 10 mA
20-28 VDC
12 60 mA
1 3 4 5 6 7 8
2
12 13 18 19 27 29 32
Control Terminals of FC302
T T
P P
PTC
M3~
9
ZIEHL
9 10 11 12
33 20 37
259
9