Operators manual for the Pentruder 6-12HF and Pentpak HF-power pack – Original instructions
Page
30
°C
LED indicating status for the HF-motor
1) Pentpak is powered, but the green start button on the Pentpak button has not yet been
pressed. A test is made for the can-bus to the HF-motor and the chassis.
One blink:
Short circuit in the digital communication system. The fault can be
in the HF-motor, motor cable or inside the Pentpak.
a) Disconnect motor cable from Pentpak. If the alarm disappears,
go on to b). If the alarm remains the same the Pentpak is faulty.
b) Connect motor cable to Pentpak and disconnect HF-motor. If
the alarm disappears, go on to c).
If the alarm appears when connecting, the cable is faulty.
c) Connect motor cable to Pentpak and HF-motor. If the alarm
appears when connecting, the connector on the HF-motor is
faulty.
2) Pentpak is powered, and the green start button on the Pentpak button has been pressed.
One blink:
The HF-motor chassis-ID is wrong. Nothing is broken, but the HF-
motor is incompatible with the Pentpak or the machine. Pentpak
software update needed.
Two blinks:
HF-motor temperature sensor in windings is not working correctly.
Three blinks:
HF-motor or motor cable is not working correctly. Short
or open
circuit.
Quick blinks:
HF-motor temperature is high, output power is automatically
reduced. Increase water flow.
Continuously on:
HF-motor has been shut off due to over temperature.
This can also indicate that no HF-motor is connected or that the
power pack doesn’t find a motor, e.g. damaged motor-ID chip or
motor cable.
Important!: The motor will be switched off automatically when the motor winding
temperature is over 140°C (284°F). The coolant water should then be left running through
the power pack and HF motor to avoid terminal overheating. If the water is turned off after
the motor has been switched off automatically, and when the warning light is on, terminal
damage to the motor windings may occur.
Note: The outside temperature of the motor is no indication of the inside temperature of the
motor. The temperature sensor is placed inside the motor windings and does not monitor
the outside temperature of the motor. The windings can be working at a high temperature
even if the motor is cold on the outside.
Note: The warning light will be off when the temperature has gone down to a temperature
below 110°C. The motor cannot be restarted until the warning light goes off.
