3 electrical connection – NORD Drivesystems BU0100 User Manual
Page 7
NORDAC SK 140E
BU 0100 GB
Technical Modifications Reserved
7
2.3 Electrical connection
Power cable:
The system connection shall be performed with a cable of sufficient cross-section (max.
4 mm
2
)
Control unit:
4-pole plug with screw terminals 1.5 mm
2
(electrically separated from the system potential)
PTC resistor/brake: 3 x 2-pole screw terminals with 1.5 mm
2
(on system potential)
Cable entry:
The following are available: 1 x M25 and 1 x M12 and 1 x M16. If applicable, 1 x M12 may
already be reserved by the brake connection. Other screw connections are available, but
cannot be freely allocated.
Principle circuit diagram:
L
L
ON
1
OFF
2x
L3
L2
L1
+24V DC
OK
RUN
GND
Bremsspule
Kaltleiter oder Temperaturwächter
Brücke für langsames Abschalten
Motorklemmen
Terminal
Function
Data
Power unit
(Syst
em p
o
tent
ia
l)
L1, L2, L3
System connection
4mm
2
, (200) 380 ...480V, 50...60Hz
PE
Housing ground
4 mm
2
[L]
Bridge L
1.5 mm
2
[BR-]
Brake coil
1,5mm
2
, (105) 180V DC … 205V DC, max. 0,5A
[BR+]
Brake coil
1,5mm
2
, (105) 180V DC … 205V DC, max. 0,5A
[38] Temp1
PTC resistor
1.5 mm
2
[39] Temp2
PTC resistor
1.5 mm
2
Control unit
(e
le
c
tri
ca
llyse
p
ar
at
ed
)
[46] GND
Reference potential
1.5 mm
2
, 0 V
[45] +24 VDC
Supply voltage 24 V
1.5 mm
2
, 15...30 V, 50 mA
[22] RUN
Release signal
1.5 mm
2
, 15...30 V, ca. 2 mA
[B1] OK
Feedback, operational
1.5 mm
2
, 15...30 V, max. 50 mA
Motor terminals
Bridge for gradual switch-off
Brake coil
PTC resistor or temperature control