NORD Drivesystems BU0700 - Manual (Page 47)

3.2 Customer unit
BU 0700 GB-1411 Subject to technical alterations 47
3.2.3 Multi I/O
(SK CU1-MLT, Option)
The Multi I/O Customer Unit provides the highest functionality of digital and analog
signal processing. 2 analog inputs and 6 digital outputs are available to control the
frequency inverter. Both analog inputs can process signals from 0...10V, 0...20mA
(4...20mA) or -10V...+10V.
Two programmable and scalable analog outputs 0...10V enable actual operating
parameters to be transmitted to a display device or process control system.
By means of the two relay contacts, brake control and even warnings to another
system can be initiated.
The digital inputs of the multi I/O cannot process analog setpoints! (See also Chap.
5.1.5, P420-P425)
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
NOTE: All control voltages are based on a common reference potential!
Potentials AGND /0V und GND /0V are internally linked in the device.
The maximum total current 5/15V is 300mA!
Analog output of PLC:
0...10V / -10...+10 V
or potentiometer: 2...10k

Floating contact or
PLC output: 7,5...33V
Output relay:
max. 2,0A
28V DC /230 V AC
Analog inputs 1 and 2:
-10...+10V, 0/4...20mA
Power supply: 5V
Analog outputs 1 and 2:
0...10V / max. 5mA
U
REF
= 10 V / I
max
= 10 mA
Power supply: 15V
DIG IN 6 only = 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
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
Additional burden resistance for
0/4...20mA analog input 1 (250

)
Additional burden resistance for
0/4...20mA analog input 2 (250

)
WARNING / NOTE
It is not permissible to connect the output relay of the Customer Unit (SK CU...and SK XU) to dangerous
voltages(
≥60VAC) if a contact of the relay is connected to a circuit with safe isolation.
ON OFF
Analog input 1
ON = Current, OFF = Voltage
Analog input 2
ON = Current, OFF = Voltage
U/I Switching, R = 250
