Owner manual

Decentralised drive technology - from SK 300E to SK 200E
22 Migration Guide-GB-11.10.2012
Setpoint converter SK CU4-REL
This customer interface can be used instead of the electronic brake rectifier SK CU4-MBR for SK
2x0E applications in which an electro-mechanical brake does not need to be controlled.
The setpoint converter SK CU4-REL enables the digital output signal (DO) of the frequency inverter to
be converted into potential-isolated relay outputs.
Also, by means of this customer interface bipolar analog signals can be converted to 0-10V analog
signals, which in turn can be processed by the SK 2x0E frequency inverter.
Fig. 9: Customer interface SK CU4-REL for SK 2xxE
Fig. 10: Control terminals of customer interface SK CU4-REL for SK 2xxE
Control of digital IN of the SK CU4
via DO from the SK 2x0E
R21
R22
R24
R11
R12
R14
40
C2
C1
118
117
116
114
111
112
44
Relay 1
Connection of the 24V power
supply from the SK 2x0E
AOUT connection of the SK
CU4 to AIN of the SK 2x0E
24V
AGND / 0V
Connection to the terminal bar
of the SK CU4-REL-…
10V REF.
DI1
AOUT1
R11 / R14 = NO
R11 / R12 = NC
SK CU4-
SK 2x0E-
AIN1
Connection for bipolar analog
signals
…
11
12*
44
1
16
14
…
40
3
AIN2
AOUT2
DI2
Relay 2
R21 / R24 = NO
R21 / R22 = NC
* Terminal 12 or Terminal 40
GND / 0V
Potential level: Analog
Potential level: Digital / Relay