Maximum current on MCB 112
•
Terminal 10: 10 mA.
•
Terminal 12: 60 mA.
PTC
M 3~
TP
TP
12 13 18 19 27 29 32 33 20 37
MS 220 DA
Code No. 130B1137
Motor protection
SEE MANUAL FOR
MCB 112 PTC Thermistor Option B
ADDITIONAL INSTRUCTIONS.
PTB 14 ATEX 3012U
CAUTION:
II (2) G [Ex e] [Ex d] [Ex n]
ε
10
10 mA
60 mA
12
20-28 VDC
20-28 VDC
II (2) D [Ex tb][Ex tc]
0102
12030-1201-03
.c
om
X44
1
T1 T2 NC NC NC NC NC NC NC
NC
LOGIC
SAFE STOP
OUT
T37
2
3
4
5
6
7
8
9
10 11 12
130BB161.11
Illustration 3.2 Wiring Diagram
3.3 Installation of the VLT
®
PTC Thermistor
Card MCB 112
For motor connection, AC mains connection, and control
wiring, follow the instructions for safe installation in the
operating instructions of the frequency converter and the
VLT
®
Frequency Converter - Safe Torque Off Operating
Instructions
.
Terminal
Description.
Terminal 12
24 V DC supply voltage.
Terminal 13
24 V DC supply voltage.
T37 (X44/12)
Output terminal on the MCB 112 option.
Terminal 37
Input terminal on the control card.
X44/10
Logic output signals the status in case of
failure.
Table 3.2 Terminal Definitions
CAUTION
RISK OF OVERVOLTAGE
Long cables (voltage peaks) or increased mains voltage
may lead to overvoltage at the motor terminals and
damage the equipment.
•
Install a sine-wave filter.
CAUTION
Place the frequency converter with MCB 112 (including
the connection between output safe stop T37 output
(X44/12) on MCB 112 and terminal 37 input on the
control card) in an IP54 enclosure as per IEC 60529.
Installing the MCB 112
130BE118.10
A
B
D
Illustration 3.3 LCP Frame and Terminal Cover Removal
1.
Disconnect power to the frequency converter.
2.
Remove the LCP, the terminal cover, and the LCP
frame from the frequency converter.
3.
Fit the MCB 112 in slot B, see
Illustration 3.3
.
Wiring
1.
Remove the jumper wire between control
terminals 37 and 12 or 13.
•
Cutting or breaking the jumper is not
sufficient to avoid short circuiting.
12/13
37
130BE099.10
2.
Connect X44/12 on the option card to terminal
37 on the frequency converter.
Installation
VLT
®
PTC Thermistor Card MCB 112
10
Danfoss A/S © 01/2015 All rights reserved.
MG33V302
3
3
