Ptc Thermistor Card Mcb - Danfoss VLT FC 102 Series Design Manual

Selection

3.1.10 PTC Thermistor Card MCB 112

The MCB 112 option makes it possible to monitor the
temperature of an electrical motor through a galvanically-
3 3
isolated PTC thermistor input. It is a B option for adjustable
frequency drive with Safe Torque Off.
For information on mounting and installation of the
option, see chapter 3.1.1 Mounting Option Modules in Slot B.
See also chapter 7 Application Examples for different
application possibilities.
X44/1 and X44/2 are the thermistor inputs. X44/12 enables
Safe Torque Off of the adjustable frequency drive (T-37), if
the thermistor values make it necessary, and X44/10
informs the adjustable frequency drive that a request for
safe torque off came from the MCB 112 to ensure a
suitable alarm handling. One of the digital inputs
parameters (or a digital input of a mounted option) must
be set to [80] PTC Card 1 to use the information from
X44/10. Configure 5-19 Terminal 37 Safe Stop to the desired
Safe Torque Off functionality (default is Safe Stop Alarm).
MS 220 DA
Motor protection
MCB 112 PTC Thermistor Card
X44
1 2
T
P
PTC
M3~
Figure 3.13 Installation of MCB 112
66
ZIEHL
Option B
Code No.130B1137
Reference for 10, 12
11
20-28 VDC 10 mA
10
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
T
P
Danfoss A/S © Rev. 06/2014 All rights reserved.
Design Guide
ATEX Certification with FC 102
The MCB 112 has been certified for ATEX, which means
that the adjustable frequency drive with the MCB 112 can
now be used with motors in potentially explosive
atmospheres. See the Instruction Manual for the MCB 112
for more information.
Figure 3.14 ATmosphère EXplosive (ATEX)
11 12
20 37
MG11BC22