Operator’s manual Pentruder
®
3P8 HF-wire saw and Pentpak - Original instructions
39
LED type warning lights on the power pack
There are four red warning LED:s on the Pentpak. Below is an explanation of the respective functions.
6.2.1
LED for indication of loss of one or more phases
One blink:
- - - - - - - - - - - - - -
Loss of phase from power supply. This can be caused by a blown fuse, faulty cords, faulty
plugs or receptacles, or other problems. Check fuses, input voltage, cords etc.
Two blinks:
- - - - - - - - - - - - - - - - - -
Too low incoming voltage. Can be caused by too long and/or too small extension cables.
Check voltage, connectors, cords and generator if applicable.
Three blinks:
- - - - - - - - - - - - - - - - - - - - - - - -
Too high incoming voltage. Connect only to 3-phase 380 – 480V. Check voltage,
connectors, cords and generator if applicable.
With one phase missing from the power supply, feed and travel may work, but the blade will not start.
General advice to eliminate any of the above fault conditions: Eliminate the cause of the problem, i.e. replace blown
fuses, repair cords, repair or replace plugs and receptacles. If possible, test with replacing the cable.
Note!
A voltage meter doesn’t always show a voltage drop in one of the phase lines
because this cannot be measured without electrical load applied. A voltage meter
can show normal voltage even though there are voltage losses when the machine is
running.
6.2.2
LED indicating status for the Pentpak
One blink:
- - - - - - - - - - - - - -
Overcurrent alarm. May occur if the blade is jammed in the cut,
Press start blade switch to reset or unplug the unit for 60 seconds.
Two blinks:
- - - - - - - - - - - - - - - - - -
Unknown device connected to Pentpak. Software update needed in Pentpak.
Three blinks :
- - - - - - - - - - - - - - - - - - - - - - - -
Other internal alarm for frequency inverter. Unplug the unit from the power supply, wait
at least one minute and plug it in again. If the alarm has gone away you can proceed as
normal.
If the alarm doesn’t go away, the Pentpak needs to be checked by the authorized
Pentruder service workshop.
Four blinks :
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
Frequency inverter alarm. The Pentpak needs to be checked by the authorized Pentruder
service workshop.
Quick blinks:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Temperature in the frequency inverter has risen to a too high level. Protect from direct
sunlight, increase water flow.
Continuously on:
The Pentpak is shut off due to over temperature.
°C
