NORD Drivesystems BU0750 - Manual (Page 44)

NORDAC SK 750E Manual
44 Subject to technical amendments BU 0750 GB-3311
3.3.5 Multi I/O Customer Unit
(SK CU1-MLT, Part No.: 278200010)
The Multi I/O (Customer Unit)provides the highest functionality of
digital and analog signal processing. There are 2 differential
analog input and 6 digital inputs available for control of the
frequency inverter. Both analog inputs can process signals from
0...10V, 0...20mA (4...20mA) or
- 10V...+10V.
Two programmable and scaleable analog outputs 0...10V enable
actual operating parameters to be transmitted to a display device
or process control system.
Via the two relay contacts, a brake control can be actuated or
warnings can be transferred to another system.
The digital inputs of the multi I/O cannot process analog setpoints!
(See also Section "Control terminals", P420-P425)
NOTE: All control voltages are based on a common reference potential!
Potentials AGND /0V and GND /0V are internally linked in the device.
The maximum total current 5/15V is 300mA!
X
2
.1
X
2
.2
X
2
.3
11 VREF 10V
12 AGND /0V
14 AIN1 +
16 AIN2 +
17 AOUT1
21 DIG IN 1
22 DIG IN 2
23 DIG IN 3
24 DIG IN 4
42 VO +15V
01 REL1.1
02 REL1.2
03 REL2.1
04 REL2.2
25 DIG IN 5
26 DIG IN 6
18 AOUT2
40 GND /0V
41 VO +5V
Floating contacts or
output of a PLC: 7.5...33V
Analog inputs 1 and 2:
-10..+10V, 0/4...20mA
Analog outputs 1 and 2:
0...10V / max. 5mA
Only DIG IN 6 =
Temperature sensor!
Switching threshold = 2.5 V
Digital inputs:
DIG IN 1 = On right
DIG IN 2 = On left
DIG IN 3 = parameter set bit 0
DIG IN 4 = fixed frequency 1
DIG IN 5 / 6 = No function
Additional burden resistance for 0/4...20mA
analog input 1 (250

)
Additional burden resistance for 0/4...20mA
analog input 2 (250

)
Analog PLC output:
0...10V / -10...+10 V
or Potentiometer: 2...10k

Connector Functions Maximum cross-section Parameter
X2.1 Output relay 1.5 mm
2
P434 ... P443
X2.2
Analog signals
IN / OUT
1.0 mm
2
P400 ... P419
X2.3 Digital inputs 1.0 mm
2
P420 ... P425
Analog input 1
ON = Current,
OFF = Voltage
Analog input 2
ON = Current,
OFF = Voltage
ON OFF
U/I switching, R = 250 Ω