Wiring Instructions; Removing The Cover; Wiring Details - CD Automation MULTIDRIVE-1PH User Manual

CD Automation srl

7 Wiring instructions

Caution: this procedure must be performed only by qualified persons.
The Thyristor unit could be susceptible to interferences lost by near equipments or by the power supply,
for this reason in accord to the fundamental practices rules is opportune take some precautions:
The electronic circuit of the Thyristor unit must be supplied from a dedicated voltage and not with
•
inductive or capacitive loads. We recommend the use of a screened transformer.
The coil contactor, the relays and other inductive loads must be equipped with opportune RC filter.
•
Use shielded bipolar cables for all the input and output signals.
•
The signal cables must not be near and parallel to the power cables.
•
Local regulations regarding electrical installation should be rigidly observed.
•
For safety connect the heat-sink to the earth with his terminal.

7.1 Removing the cover

Instructions for open the thyristor unit

7.2 Wiring details

Use copper cables and wires rated for use at 75°C only.
7.2.1 Power cable torque (suggested)
Current
850A (S14)
with M10 screw
7.2.2 Power cable dimensions (suggested)
Current
mm²
850A (S14)
7.2.3 Cable dimensions (suggested) of Earth and of the Command Terminals
Current
mm²
850A (S14)
MULTIDRIVE-1PH 850A
Connector
Type Lb-in (N-m)
Bus Bar
505 (57.0)
Supply
Cable
AWG
Bus Bar
Earth
Cable
AWG
70 1/0
Wire
Torque
Range
AWG / kcmil
Bus bar 60x6mm
Screw
M
60 x 6 mm
Screw
M
M8
16
Terminal
Load
Cable
mm² AWG
Bus Bar
Command Terminals
Cable
mm² AWG
0,50 18
User's Manual
Wire
850A
Screw
M
60 x 6 mm