Parker Hannifin
- 84 – Aries Controller Hardware Installation Guide
Over-Voltage Protection
The Aries Controller over-voltage circuit protects the drive from excessive
regeneration. If the voltage on the motor output terminals rises above the
threshold voltage, the drive/controller issues an over-voltage fault and turns
off power to the motor output terminals (Output Power connector). This
allows the motor to freewheel to a stop.
Threshold Voltage
All Models................................................ 410 VDC
Results of Fault ....................................... Power to motor is turned OFF
Drive status word is updated
via Ethernet to the PC
LED Left LED Right
Yellow
& 4 Green (blinking)
Red
Table 37 LED Over-Voltage Fault
Resetting the Fault
To clear the latched fault, choose one of the following methods:
Cycle power to the drive/controller.
–or–
Open ACR-View and issue the DRIVE RES AXIS0 command to the Aries
Controller.
Warning — Over-voltage protection monitors only the motor output terminals
(DC motor bus). It does not protect against an over voltage on the AC input
terminals, which can permanently damage the drive/controller.
Warning — When an over-voltage protection fault occurs, the Aries
Controller disables power to its motor output terminals on the Output Power
connector. This cuts all control to the motor and allows the load to freewheel.
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