NORD Drivesystems MI0300 - Manual (Page 22)

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
R
21
R
22
R
24
R
11
R
12
R
14
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