ABB PSTX720 - Page 86

86 Functions | Installation and commissioning manual | 1SFC132081M0201
7.10 Motor heating
Use the Motor heating as a pre-start function to heat the
motor before actual start without rotation to the motor.
Or use it as an individual function operated from a digital
input or Fieldbus.
The Softstarter supplies a current to the motor, without
coming at the torque level that starts the motor.
WARNING
If the Softstarter is connected inside-delta and
using the Motor heating, this can cause damage
to the equipment.
WARNING
Because Motor heating function warms up the
motor we recommend to use a PTC or PT100
element for temperature monitoring.
In some conditions the built-in EOL is not
accurate for this feature.
INFORMATION
Motor heating only works when the Softstarter is
connected in-line.
Motor heating has these parameters:
Parameter Description Setting range Default value
02.07 Pre-start function Set to Motor heating.
Off, Motor heating, Stand-
still brake, Jog forward, Jog
backward
Off
02.08 Pre-start time Sets the duration of the pre-start
function.
0.0 ... 7200.0 s 10.0 s
06.01 Motor heating capacity Sets the heating power to the
motor. Select a suitable value for the
application.
10 ... 100000 W 10 W
7