30
9.4.2
Motor connection
Mounting of the PTC
Method A :
Method
B :
1.
The cover of the conduit box must be opened and the terminal block inside removed
2.
Fix the PTC (Method A or B)
3.
Replace the terminal block
4.
Electrical connection of the motor cables
The PTC must be fixed to the metal body of the motor. This is necessary to measure
the right temperature of the motor!
The connection of the motor cable depends on the type of motor and can be done in star-
or delta connection.
The right connection of the motor has to be selected as shown on the motor label
according to the output voltage of the HYDROVAR.
star - connection
delta - connection
U
V
W
H
Y
D
R
O
V
A
R
U
V
W
PTC
PTC
U
V
W
U
V
W
H
Y
D
R
O
V
A
R
PTC
motor block
PTC
terminal block
rubber gasket
cover of the
conduit box
