Husqvarna PG 530 Bedienungsanweisung Seite 28

Fault tracing table
Problem/Fault Code
Machine will not turn on
Opening display screens
(V1.1) does not change from
0,00 Hz on the variable
speed drives when I switch
my machine from STOP to
RUN
Opening display screen
(V.1.1) stays on 0,00 Hz on
only one of the varible speed
drives when I switch my
machine from STOP to RUN
Display screen when on
frequency reference display
(V1.1.2) will not go all the
way to 80 Hz on the large
variable speed drive
Display screen when on
frequency reference display
(V1.1.2) will not go all the
way to 120 Hz on the small
variable speed drive
Display screen when on
frequency reference display
(V1.1.2) will not go all the
way to 100 Hz on the
variable speed drive
DC link voltage (screen
V1.18) is less then 550 +/- 5V
when the machine is in
stand by
DC link voltage (screen
V1.18) is less then 500+/- 5V
when the machine is in
operation
28 – English
MAINTENANCE
Possible Cause
The incoming power cable is not live
The EMERGENCY STOP button is
engaged
The safety circuit breaker is open inside
the electrical cabinet
Problem with the contactor on the back of
the POWER button
Problem with the connection of the wires to
STOP/RUN switch or with the contactor on
the back of the STOP/RUN switch
Problem with the electrical connection from
STOP/RUN switch to on of the FWD/REV
switches
Problem with the wire connection from
FWD/REV switch to the frequency inverter
or with the contactor on the back of the
FWD/REV switch
Problem with the head speed
potentiometer on the control panel near the
handle bars
Problem with the wiring communications
into the variable speed drive
Problem with the data and programming of
the variable speed drive
Problem with the disc speed potentiometer
on the control panel near the handle bars
Problem with the wiring communications
into the variable speed drive
Problem with the data and programming of
the variable speed drive
Problem with the disc speed potentiometer
on the control panel near the handle bars
Problem with the wiring communications
into the variable speed drive
Problem with the data and programming of
the variable speed drive
Poor power supply coming into the variable
speed drive
Poor power supply coming into the variable
speed drive
Potential Solution
Check that incoming power is turned on
Twist the Emergency Stop button to release
Close circuit breaker to complete the circuit
Check that wires are connected and firm on the back of the
POWER button as on machine model schematic. Check
that the contactor is engaging when the POWER button is
pressed.
Check that the stop run switch wires inside the control
panel are connected and firm and are engaging and
disengaging when switch is turned.
Check that linkage wires between STOP/RUN switch and
the FWD/REV switches are connected and firm as machine
model schematic
Check that linkage wires between FWD/REV switches and
frequency inverter are firm and correct as machine model
schematic. Check that the contactor is completely
engaging and disengaging when switch is turned.
Check wires into potentiometer, as machine model
schematic. Replace potentiometer if needed.
Check the control panel cable and cable into variable
speed drive terminals for damages
Re-programming required. Machine needs to be checked
by a Husqvarna service agent
Check wires into potentiometer, as machine model
schematic. Replace potentiometer if needed.
Check the control panel cable and cable into variable
speed drive terminals for damages
Re-programming required. Machine needs to be checked
by a Husqvarna service agent
Check wires into potentiometer, as machine model
schematic. Replace potentiometer if needed.
Check the control panel cable and cable into variable
speed drive terminals for damages
Re-programming required. Machine needs to be checked
by a Husqvarna service agent
Check voltage and phases to grinding machine at the first
point of output power to the grinder
Check both voltage and phases to grinding machine at the
first point of output power to the grinder, including wiring
connections at the contactor and variable speed drive input