Wiring Instructions - Kaiser-Motoren D Serie Betriebsanleitung

Wiring Instructions

In order to avoid electrical interferences of motor protection devices (PTC thermistor TP,
winding protection thermostats TB), the following is admissible:
•
Separately screened supply conductors can be laid together with clocked power
lines in one cable.
•
Non-screened supply conductors must not be laid together with clocked power lines
in one cable.
Clocked power lines are in particular:
•
Output lines of frequency and servo inverters, rectifiers, soft start and braking
devices
•
Supply conductors to brake resistors and the like
Motors with Water Cooling
The water connections are to be connected according to the indicator plates on the motor.
The cooling water quantity necessary for cooling the motor must definitely be maintained.
Trapped air must be avoided and if necessary eliminated because the cooling is affected.
Through the electrical controls, ensure that the motor can only be operated with switched
on water current and that the cooling jacket is always completely ventilated. The
maximum water temperature is 40° C.
Attention!
Water-cooled motors must be provided with a monitoring of the cooling water circulation
and/or with a monitoring of winding temperature.
Motors with Anti condensation heater
The ratings of the anti condensation heater are stated on the nameplate or an additional
plate. The heating can be effected in two variants depending on the design:
•
Via heating elements which are supplied via separate connecting terminals, or
•
via the stator winding by applying an alternating voltage on the connection terminals
U1-V1
Attention!
Through the electrical controls, ensure that motor voltage and heating voltage are not
applied simultaneously.
Motors with Temperature Control
PTC thermistor for protecting the motor winding correspond to DIN EN 60947-8 and DIN
44081/2.
Attention!
PTC thermistors must only be operated via corresponding tripping units. Connection
voltages >2,5V can lead to a destruction of the PTC thermistors and a damaging of the
motor winding.
Motors with temperature controls (TB, bimetal switches):
Standard: NC contacts U = 250VAC 50/60Hz I=1,6A
Attention!
After the motor has cooled down and the temperature controls have reset, it is possible
that an automatic restarting takes place if no countermeasures are taken circuit-wise.
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