Manual
SK 180E Manual for frequency inverters     
56  Pre-series version  BU 0180 GB-0914 
Control connection details 
Terminal/ 
  Designation 
Function 
Data 
Description / wiring suggestion 
Parameter 
44  24V 
24V supply 
24 V DC ± 25% 
50 … 500mA (according 
to load on the digital 
output) 
Supply voltage connection for the 
module 
- 
40 GND /0V 
GND 
Reference potential 
- 
C5  DIN 
Digital input 
Current consumption with 
30 V DC: 13 mA 
24 V DC: 10 mA 
15 V DC: 5.5 mA 
Switching thresholds 
ON:  > approx. 8.5 V 
OFF:  < approx. 7.5 V 
Digital input for DC brake switching 
- 
B5  DOUT 
Digital output 
15 … 30 V, 200 mA, SPS-
compatible according to 
EN61131-2 
Low:  0 V / <30 mA 
 No current through brake 
High:  24V / >70mA 
 Current through brake 
Reporting of current status of the 
mechanical brake 
- 
Potential isolation 
79  MB+ 
Brake control 
Voltage: 
Mains    brake 
230 V~    205 V= 
400 V~    180 V= 
460/480 V~    205 V= 
Current: max. 0.5 A 
The module SK CU4-MBR 
generates an output voltage on 
Terminals MB+/MB- for control of 
an electromechanical brake. This 
depends on the supply voltage and 
the connection of the supply cable 
to the one-way (L1
E
) or bridge 
rectification (L1
B
) of the module. 
The assignment of the correct 
brake coil voltage must be taken 
into account in the selection. 
(NOTE: this function is identical to 
P434=1) 
P107*, 
P114*, 
P505 
80  MB- 
Brake control 
Potential isolation 
L1
E
Mains connection 
1st phase 
Supply voltage L1: 
380V … 480 V ± 10% AC, 
max. 10 A 
Mains connection for one-way 
rectification. 
- 
L1
E
- 
L1
B
Mains connection 
1. Phase 
Supply voltage L1: 
200V … 240 V ± 10% AC, 
max. 10 A 
Mains connection for bridge 
rectification. 
- 
L1
B
- 
L2 / N 
Mains connection 
2. Phase 
Connection of 2nd phase for mains 
connection L1
E
 or L1
B
. 
- 
L2 / N 
- 
* Recommended setting (P107/P114) for NORD brakes: BRE5, 10, 40: 0.02s / BRE 20, 60 : 0.03s 










