NORD Drivesystems BU0750 - Manual (Page 42)

NORDAC SK 750E Manual
42 Subject to technical amendments BU 0750 GB-3311
3.3.3 Customer unit Basic I/O
(SK CU1-BSC, Part No.: 278200000)
The (Customer Unit) I/O provides sufficient control terminals for
simple control tasks and is therefore an economic solution for
many applications.
There are 1 analog input and 3 digital inputs available for control
of the frequency inverter. The analog differential input can
process positive signals of 0...10V.
By means of a relay contact, brake control can be actuated or
warnings can be sent to another system. A total of 13 different
relay functions are available.
The digital inputs of the Basic I/O can also be assigned analog
functions (see process controller, Section 10.3). Here, input
voltages ≥10V are processed as 10V signals and correspond to
100% (9V = 90%, ... , 0V=0%).
Connector Functions Maximum cross-section Parameter
X3.1 Output relay 1.5 mm
2
P434 ... P436
X3.2 Analog input 1.5 mm 2 P400 ... P408
X3.3 Digital inputs 1.5 mm
2
P420 ... P422
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!
Floating contacts or
output of a PLC: 7.5...33V
(low = 0...3.5Volt)
Differential input 0...10 V
X
3
.1
X
3
.2
X
3
.3
01 REL1.1
02 REL1.2
11 VREF 10V
12 AGND /0V
13 AIN1 -
14 AIN1 +
21 DIG IN 1
22 DIG IN 2
23 DIG IN 3
42 VO +15V
Digital inputs:
DIG IN 1 = On right
DIG IN 2 = On left
DIG IN 3 = Parameter set bit 0
Output relay:
max. 2.0A
28V DC /230 V AC
U
REF
= 10 V / I
max
= 10 mA
0V, gnd
Voltage supply:
15V, max. 300mA
Analog PLC output: 0...10V
or potentiometer: 2...10k
