National Flooring Equipment 8274-4, Руководство по эксплуатации

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Troubleshooting Guide
11
Fault Code
Status Light Fault Description Problem Solution
SOLID ON Check safety tether Safety tether is disconnected
from controller or faulty con-
nection internally with tether
switch.
Attach safety tether to control box. If
necessary, check connections inside
controller. Ensure control box is discon-
nected from power source prior to
opening control box.
2 FLASHES Power line voltage too low Not enough power coming
into controller to start or run
grinder.
Be sure to use the appropriate exten-
sion cord (see Safety) and/or generator
(10 kW, 115V if applicable).
3 FLASHES Power line voltage too high Excessive power coming into
controller.
Ensure grinder is plugged into an outlet
and/or generator (if applicable) with the
appropriate voltage.
4 FLASHES Motor short circuit or overload Motor may be overheating
due to using too long of an
extension cord or because the
outlet/generator is the wrong
voltage.
Allow motor to cool before resetting fault
code. Reduce amp draw by removing
weights from grinder deck and/or reduc-
ing motor’s RPM. Ensure use of proper
extension cord, outlet, and/or generator.
5 FLASHES Controller overheating Internal components of con-
troller are too hot.
Ensure external fan is plugged into con-
troller and is working properly. Reduce
amp draw by removing weights from
grinder deck and/or reducing motor’s
RPM.
6 FLASHES Open motor phases No power from controller
motor.
Ensure motor is properly connected to
control box.
NO FLASHING
LIGHTS or ANY
LIGHTS AT ALL
No illuminated status lights or
fault codes
Reset power supply circuit
breaker if necessary; if the
power source is working, it
is likely the fuse inside the
control box is blown.
Prior to opening control box, ensure it is
disconnected from power source. Wait
30 seconds for power to discharge from
capacitors after disconnecting. Replace
fuse.
Note: For additional maintenance and repair information, reference this machine’s Service Manual.