Nidec Digitax ST Series User Manual

Digitax ST Installation Guide 27
Issue: 7
Safety Information Introduction Mechanical Installation
Electrical Installation
UL Listing Information
4.2 Power terminal connections
Figure 4-1 Power terminal connections
* When using a 200 V drive on a single phase supply, the live and neutral conductors can
be connected to any of the AC connections on the drive.
** This is not required if the optional internal braking resistor is used.
L1
*
L2
*
L2
L1
L3/N
UVW
Optional EMC
filter
Optional
line reactor
Fuses
L3
*
Mains
supply
Supply
ground
AC
connections
_
+
DC
DC
High current
-DC connections
+
_
Low voltage
DC (48V)
DST12XX = 200 to 240V 10%
DST14XX = 380 to 480V 10%
±
±
Connectors specification:
Maximum size of power cable
= 4.0mm (10AWG)
Torque setting = 1 N m
2
PE
It is essential that the braking
resistor be protected against
overload caused by a failure of the
brake control. Unless the resistor
has in-built protection, a circuit like
those shown in Figure 4-1 should
be used, where the thermal
protection device disconnects the
AC supply to the drive. Do not use
AC relay contacts directly in series
with the braking resistor circuit,
because it carries DC.
WARNING
Terminals Torque setting
Power terminals
1.0 N m
(12.1 lb in)
Control terminals
0.2 N m
(1.7 lb in)
Status relay
terminals
0.5 N m
(4.5 lb in)
Ground terminal
screws
4 N m
(35 lb in)
Small ground
terminal screws
2 Nm
(17.7 Ib in)
* *Torque tolerance = 10%
NOTE

Nidec Digitax ST Series Specifications

General

Brand	Nidec
Model	Digitax ST Series
Category	DC Drives
Language	English