Parker TQ10X, Руководство пользователя

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20 TQ10X User Guide
WARNING
Hazardous voltages are present on
MOTOR TEMP+
and
MOTOR TEMP–
when the drive is
powered up. Use insulated wires for connections. Protect personnel from contacting these
terminals or any attached wires. Do not short these terminals to earth ground.
The TQ10X’s motor overtemperature fault can, in many cases, protect the motor
against overheating. Through its
MOTOR TEMP+ and MOTOR TEMP- terminals,
the drive checks for electrical continuity provided by a normally-closed thermostat
mounted on the motor. If the motor overheats and the thermostat opens, the loss of
continuity triggers protection circuitry in the TQ10X. It will turn off power output
to the motor, and illuminate the LED labeled
MOTOR FAULT .
This is a latched fault. Wait for the motor to cool, then cycle power to resume
operations. A motor overtemperature fault indicates improper motor sizing, or
improper installation of your application.
This circuit may not protect the motor in every possible application. It works best
in cases where the temperature rise occurs slowly over a long period of time. In this
situation, the thermal sensor and motor windings will be at the same temperature.
When the windings and sensor reach the sensor’s threshold temperature, the sensor
can trigger the overtemperature circuit.
In cases where the temperature rise is caused by continuous peak current flowing—
such as a mechanical jam— the winding temperature may rise much more quickly
than the sensor temperature does. In this situation, the windings may be damaged
from overheating before the sensor can trigger the overtemperature circuit.
Be careful not to overheat your motor during system tuning. Allow the motor to
cool for several seconds between test moves. Instability while tuning can cause
rapid motor heating and possible motor damage. A thermal switch may not protect
the motor if the motor heats up too quickly. Do not allow oscillations to persist
longer than a few seconds. Allow the motor to cool for several minutes after each
incident of instability.
Connect Motor Phase Wires
Connect your motor’s phase wires and ground wire to the removable 7-pin
MOTOR
connector located on the bottom of the drive. The next drawing shows the location
of each terminal.
WARNING
Potentially hazardous voltages are present on motor connector terminals when power is
applied to the drive.
Ensure the connector is aligned correctly when inserted—and not misaligned by
one position.
The terminal labeled
MOTOR GROUND
is connected internally to the
EARTH
terminal on the drive’s AC power connector.
WARNING
DO NOT OMIT the
Motor Ground
connection. Internal failure of motor insulation can place
the motor frame at deadly potential if it is not properly grounded.
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