NORDAC BASE (SK 180E / SK 190E) – Users Manual for Frequency Inverters
46
BU 0180 en-4118
2.4.2 Electrical connection of power unit
NOTICE
EMC Interference to the environment
This device produces high frequency interference, which may make additional suppression measures necessary
in domestic environments (
Section 8.3 "Electromagnetic compatibility (EMC)").
The use of shielded motor cables is essential in order to maintain the specified radio interference suppression
level.
When the device is being connected, please note the following:
1. Ensure that the mains supply provides the correct voltage and is suitable for the current required
(
Section 7 "Technical data").
2. Ensure that suitable electrical fuses with the specified nominal current range are installed between
the voltage source and the device.
3. Mains cable connection: to terminals
L1
-
L2/N
-
L3
and
PE
(depending on device)
4. Motor connection: to terminals
U
-
V
-
W
A 4-core motor cable must be used if the device is being wall-mounted As well as
U
-
V
-
W
,
PE
must
also be connected. If present, in this case the cable shielding must be connected to a large area of
the metallic screw connector of the cable gland.
The use of wire end rings is recommended for connecting to PE.
Information
Connection cables
Only use copper cables with temperature class 80°C or equivalent for connection. Higher temperature classes are
permissible.
When using
wiring sleeves
, the maximum connection cross-section can be reduced.
Device
Cable Ø [mm²]
AWG
Tightening torque
Size
rigid
flexible
[Nm]
[lb-in]
1 … 2
0.2 … 4
0.2 … 6
24-10
0.5 … 0.6
4.42 … 5.31
Electromechanical brake
1 … 2
0.2 … 2.5
0.2 … 2.5
24-14
0.5 … 0.6
4.42 … 5.31
Table 6: Connection data
2.4.2.1 Mains supply (L1, L2(/N), L3, PE)
No special safety measures are required on the mains input side of the device. It is advisable to use
normal mains fuses (see technical data) and a main switch or circuit breaker.
Frequency inverter data
Permissible mains data
Type
Voltage
Power
1 ~ 115 V
1 ~ 230 V
3 ~ 230 V
3 ~ 400 V
SK…112-O
115 VAC
0.25 … 0.75 kW
X
SK…323-B
230 VAC
0.25 … 1.10 kW
X
X
SK…323-B
230 VAC
1.50 kW
X
SK…340-B
400 VAC
≥ 0.25
kW
X
Connections
L/N = L1/L2 L/N = L1/L2
L1/L2/L3
L1/L2/L3
Isolation from or connection to the mains must always be carried out for all poles and synchronously
(L1/L2/L3 or L1/N).
Summary of Contents for SK 180E Series
Page 1: ...BU 0180 en NORDAC BASE SK 180E SK 190E Users Manual for Frequency Inverters...
Page 4: ...NORDAC BASE SK 180E SK 190E Users Manual for Frequency Inverters 4 BU 0180 en 4118...
Page 185: ...8 Additional information BU 0180 en 4118 185 8 3 4 EU Declaration of Conformity...
Page 211: ...Key word index BU 0180 en 4118 211...
Page 212: ...6071802 4118...
