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Ordering Information
7.3.10 VLT
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 VLT
AutomationDrive 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 chapter 17 Application Examples.
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. To use the
information from X44/10, 1 of the digital inputs of the
7
7
®
VLT
AutomationDrive FC 302 (or a DI of a mounted
option) must be set to PTC Card 1 [80].
Parameter 5-19 Terminal 37 Safe Stop must be configured to
the desired Safe Torque Off functionality. Default is [1] Safe
Stop Alarm.
MS 220 DA
Motor protection
MCB 112 PTC Thermistor Card
X44
1
2
T
T
P
PTC
M3~
Illustration 7.15 Installation of MCB 112
76
®
PTC Thermistor Card MCB 112
ZIEHL
Option B
Code No.130B1137
Reference for 10, 12
11
10
20-28 VDC
10 mA
20-28 VDC
12
60 mA
3
4
5
6
7
8
9
10
12
13
18
19
27
29
32
33
Control Terminals of FC302
P
Danfoss A/S © 6/2016 All rights reserved.
®
VLT
Parallel Drive Modules
ATEX Certification with VLT
®
The VLT
®
for ATEX, which means that the FC 302 together with the
MCB 112 can now be used with motors in potentially
explosive atmospheres. See the thermistor card for more
information.
Illustration 7.16 ATmosphère EXplosive (ATEX) Symbol
11
12
20
37
®
AutomationDrive FC 302
PTC Thermistor Card MCB 112 has been certified
MG37N102
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