NORD Drivesystems MI0700 - Manual (Page 54)

Frequency inverters – Migration Guide SK 700E to SK 5xxE
54 MI 0700 GB-0414
3.2.1 I/O customer units
To connect I/O control signals to the SK 700E frequency inverters, 6 different I/O customer units are
offered. In contrast, the SK 5xxE series of frequency inverters by default comes with respective
onboard terminals to connect the I/O control signals. Please heed the differing terminal
numbers/terminal names (e.g. terminal 42 / VO 15V, terminal 44 / VI 24V or VO 24V) for the different
power supplies of inputs and outputs of the SK 5xxE frequency inverter types or sizes.
SK 700E
Name
Function
[factory setting]
SK 5xxE
Customer unit
SK CU1-BSC
Part No.
Connector
Terminal No.
Name
Terminal strip
Terminal No.
Name
SK 5xxE
onboard
Part No.
Basic I/O
SK CU1-BSC
X3.1
01 REL1.1 Relay 1 / output 1
NO relay contact
[brake control {1} ]
X3
1 K1.1
X3
02 REL1.2 2 K1.2
X3.2
11 VREF 10V 10 V reference voltage
X4
11 VO 10V
12 AGND/0V 0 V analogue 12 GND/0V
X4
13 AIN1 - analogue input 1 - 12 GND/0V
14 AIN1 +
analogue input 1 +
[setpoint frequency {1}]
14 AIN1
278200000
X3.3
21 DIG IN 1
digital input 1
[release right {1}]
X5
21 DIN1
X5
275xxxxxx
22 DIG IN 2
digital input 2
[release left {2}]
22 DIN2
23 DIG IN 3
digital input 3
[Par. record switchover
{8}] 23 DIN3
42 VO + 15V 15 V supply voltage
42*
44*
VO 15V
VI 24V
VO 24V
*
Depending on the frequency inverter types and sizes, the supply voltages, terminal numbers or terminal names differ.
Terminal X5: 42 / VO 15V for SK 500E, SK 510E, SK 511E, SK 520E, SK 530E and SK 540E, all sizes 1 - 4
Terminal X5: 44 / VI 24V for SK 505E, SK 515E, SK 535E and SK 545E, all sizes 1 - 4, VI 24V is mandatory for 24 V supply
of the digital inputs and the control unit of the frequency inverter. This terminal is also available on terminal block X7, X12
and X15.
Terminal X5: 44 / VO 24V for SK 505E, SK 515E, SK 535E and SK
545E, ≥ size 5, VO 24V is available as 24 V output
voltage for supplying the digital inputs. This terminal is also available on terminal block X7.
For more information, refer to manuals BU 0500 or BU 0505 (see www.nord.com ).
Table 34: Customer unit Basic I/O, SK CU1-BSC
Information Analogue input (differential input)
When using the analogue input of the Basic I/O SK CU1-BSC customer unit , implemented as differential input, it
must be taken into consideration that the SK 5xxE frequency inverters only feature non-isolated analogue inputs!
This also applies to the basic I/O of type SK CU1-STD for SK 700E frequency inverters.