Servomotor series JHN, JHQ, and JL – User Manual
Product description
Jetter AG
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The following illustration shows a JHQ12 motor with Y-plug:
JL series
3.1.3
The JL motor series comprises synchronous servo motors featuring classic winding technology.
These motors are very rugged and cover the range from 0.1 Nm (JL1) to 115 Nm (JL8). All motors
have a pole pair number of 3 and are therefore 6-pole motors. In the data sheets, for example, the
number of motor poles is then 6.
The following illustration shows a JL5 motor:
The following illustration shows a JL1 motor with Y-plug:
3.2 Configurations
Resolver
3.2.1
As standard, a 2-pole hollow shaft resolver is built into the motor as a feedback unit. The rotor of
the resolver is firmly connected to the motor shaft. The resolver is used for electronic commutation.
In addition to commutation, the resolver serves for speed and position value feedback. A resolver
is a position transducer continuously measuring motor shaft position.
The rotor position is evaluated and then supplies the following information necessary for motor
control:
The actual speed value via angular velocity
The actual position value per revolution
4096 pulses per revolution
The resolver itself does not contain any electronic components. One of the remarkable features of
a resolver is its rugged design which is insensitive to higher temperatures and vibrations. This
makes the resolver the ideal and reliable sensor for use in harsh environments. The motor needs
to be referenced.
