Attention – NORD Drivesystems BU0040 User Manual
Page 13
2 Parameter Boxes
– Installation
BU 0040 GB-0113
Subject to technical alterations
13
2.1.2.3 Connection to inverter
A shielded signal cable should be used for the data cable between the ParameterBox and the inverter. The power
supply to the ParameterBox must be between +4.5V and +30V.
Please use the following connections to connect the ParameterBox with the corresponding inverter. The
connections apply for fixed connection to the particular inverter via the terminal bar. However, these must always
be compared with the labelling on the ParameterBox.
Description
vector mc
RS485
vector
(CT / VT)
SK 300E
SK 52xE and
higher
X7:
SK 700E / SK 750E
(with option…)
SK CU1-STD
SK CU1-USS
+5V / +15V
15
-
42
42
42
42
GND
16
-
40
40
40
40
P+ (A), RS485 +
17
21
73
73
73
73
P- (B), RS485 -
18
22
74
74
74
74
ATTENTION
Damage to the RS485
Each further frequency inverter which is to be operated simultaneously on the bus cable is only connected in
parallel to the cables RS485+ and RS485-.
Under no circumstances may the power supplies of the frequency inverters (5V) be connected to each other.
For the following series of devices the RS485 data connection is also possible via the RJ12 plug socket which is
integrated into the inverter.
Description
SK 2xxE
Integrated
6-pin RJ12
socket
SK 300E
Integrated
4-pin M12
connector
SK 5xxE
Integrated
6-pin RJ12
socket
SK 700E
>22KW
Integrated
6-pin RJ12
socket
SK 700E
≤22KW
(with option
…-
RS2)
Integrated
6-pin RJ12
socket
SK 750E
Integrated
4-pin M12
connector
+5V
6 ("24V")
2
6
6
(6)
*
2
GND
3
1
3
3
(3)
*
1
P+ (A)
(RS485 +)
1
4
1
1
1
4
P- (B)
(RS485 -)
2
3
2
2
2
3
* For inverters SK700E up to 22KW with the opti
on …-RS2 an external power supply (+4.5V - + 30V) must be provided for the ParameterBox.
In order to connect the ParameterBox to the RJ12 socket of the frequency inverter, a standard RJ12 (6-pole) patch
cable with a length of up to 3 m can be used.
As standard, the 4-pin M12 connector (plug) is available for connection of the ParameterBox to a decentralised
frequency inverter (SK 300E/ SK750E).
If the ParameterBox is supplied from an external power source (+4.5 to +30V) according to the voltage, the data
cables can also be considerably longer.
ATTENTION
Voltage level of external supply
In order to avoid damage, if an external power supply to the ParameterBox is used, care must be taken that the
output voltage of this external source is higher than that of the inverter voltage (however, max. 30V DC).
(E.g.: SK520E: 5V internal supply
→ External supply for the ParameterBox >5V!)