Parker Hannifin
170 Aries User Guide
Protective Circuits

Short Circuit Protection

The Aries drive has an internal circuit that protects it from short circuits
between one motor terminal to another (phase to phase), or from any motor
terminal to earth.
Short Circuit Fault—Cause..................... Phase-to-phase short circuit
Phase-to-earth short circuit
Results of Fault....................................... Power to motor is turned off
Fault output is activated
LED Left LED Right
Yellow &
1 Green (blinking) Red
Table 52 LED Short Circuit Fault
Resetting the fault
To clear the latched fault, choose one of the following methods:
Cycle power to the Aries drive.
–or–
Open the Aries Support Tool. Then select Operating System Update
from the menu and click Reset Drive.

Drive Over-Temperature Protection

The Aries drive’s over-temperature circuit monitors the drive’s internal
temperature. If the sensors exceed the threshold temperature, the drive
issues an over-temperature fault.
Threshold Temperature
AR-01xx, AR-02xx, AR-04xx,
AR-08xx, and AR-13xx........................... 80°C (176°F)
AR-20xE and AR-30xE........................... 90°C (194°F)
Results of Fault....................................... Power to motor is turned off
Fault output is activated
LED Left LED Right
Yellow &
3 Green (blinking) Red
Table 53 LED Drive Over-Temperature Fault