Thermal Protection; Motor Feedback; Terminals And Direction Of Rotation - ABB HDP Series Manual

Earthing must be carried out according to local regulations
before the machine is connected to the supply voltage.
It is recommended to perform the installation of the motor
observing the grounding and cabling instructions required
by the frequency converter.
When preparing the installation, select the size of the
power cables according to the current load.
Ensure that the motor protection corresponds to the
environment and weather conditions; for example, make
sure that water cannot enter the motor or the terminal
boxes.
The seals of terminal boxes must be placed correctly in
the slots provided to ensure the correct IP class.

3.7.1 Thermal protection

WARNING
The windings of HDP motors are manufactured
according to the class F insulation system with class
F temperature rise.
The thermal sensors integrated into HDP motors must be
connected to the converter control circuit and adequate
alarm levels must be set in order to prevent high tempera-
tures and damage to the insulation of the windings.
By default, HDP motors have three thermal switches
(PTM), one for each motor phase. The output signals are
connected inside the motor terminal box. The nominal
switching temperature of the thermal switches is 140 °C
with a tolerance range of ±5 °C.
For motors supplied with PTC thermal sensors, the
tripping levels must be estimated according to the tem-
perature diagram of the PTC sensor used.

3.7.2 Motor feedback

Standard HDP motors are equipped with an HTL incre-
mental encoder of 1024 pulses.
The signal connector of the standard encoder is a 12-pin
male connector for industrial applications embedded in the
body of the motor. The pinout of the encoder connector is
as follows.
WARNING
If the motor is equipped with a non-standard encod-
er, check the corresponding connection diagram for
the correct layout of the pins.
3.8 Terminals and direction
of rotation
In order to alter the rotational direction of the motor shaft,
the drive parameters should be adjusted following the
instructions from the drive manufacturer.
For the cooling fan, ensure that it rotates in the same
direction as the arrow marked on the fan.
9AKK105975, Rev. A 06-2013 | ABB Motors and Generators EN – 21
PIN Signal
1 Channel B–
2 –
3 Channel Z+
4 Channel Z–
5 Channel A+
6 Channel A–
7 –
8 Channel B+
9 –
10 0 V
11 *
12 Supply +E