![background image](http://html1.mh-extra.com/html/gardner-denver/governor-ten014980/governor-ten014980_user-manual_563861140.webp)
13-17-621 Page 140
FV1.59
Fault
VFD Cooling
Power Wiring
fault
Input/Output wiring to
VFD is incorrectly
connected
Power the drive down and safely lock out system.
Inspect and verify input power wires are properly
connected to VFD terminals L1/L2/L3. Inspect
and verify motor leads are connected to the VFD
output terminals U/V/W.
FV1.60
Fault
VFD Cooling
control Board
Over Temp fault
VFD is measuring control
board temperatures
above the fault limit.
Confirm ambient temperature near the VFD is
below 50C. Check ventilation filters and fans
mounted in the control panel for debris. If
equipped, confirm the small control board cooling
fan is operational.
FV1.61
Fault
VFD Cooling
internal control
Power Supply
fault
VFD is reporting that the
internal 24VDC control
supply outside the range
of 18-27VDC
Using a multi-meter, measure 24VDC supply at
the control board terminals. If the voltage is in
range, power cycle the drive. If out of range,
contact Gardner Denver service.
FV1.62
Fault
VFD Cooling
Flying Start fault
VFD has detected a
failure during a flying
start of the fan motor.
Check the VFD output terminal connections to the
motor. Check if fan wheel is freewheeling in the
wrong direction during start. Remove ventilation
ducting causing the reverse freewheeling.
FV1.63
Fault
VFD Cooling
Current
Imbalance fault
The VFD has detected
an output phase
imbalance of more than
20%
Check VFD output terminal connections to the
motor. Check the condition of the motor leads,
and the connections in the motor junction box.
Measure current with a clamp on amp meter in
each lead between the VFD & motor. Test fan
motor insulation resistance.
FV1.64
Warning
VFD Cooling
Replace Battery
Warning
The VFD's real time
clock battery is near
depletion
Replace the RTC battery.
FV1.64
Fault
VFD Cooling
Replace Battery
Fault
The VFD's real time
clock battery is depleted
Replace the RTC battery.
FV1.65
Warning
VFD Cooling
Replace Fan
Warning
VFD has calculated that
its cooling fan life is less
than 2 months.
Inspect condition and operation of heat sink
cooling fans. Replace as needed.
FV1.65
Fault
VFD Cooling
Replace Fan
Fault
VFD has calculated that
its cooling fan life is less
than 2 months.
Inspect condition and operation of heat sink
cooling fans. Replace as needed.
FV1.66
Warning
VFD Cooling
Safe Torque Off
Warning
Emergency Stop
Pressed. E-Stop digital
input signal received.
Reset the E-Stop switch. Refer to machine
schematic and check wiring between E-Stop
contact and cooling VFD input.
FV1.66
Fault
VFD Cooling
Safe Torque Off
Fault
Emergency Stop
Pressed. E-Stop digital
input signal received.
Reset the E-Stop switch. Refer to machine
schematic and check wiring between E-Stop
contact and cooling VFD input.
FV1.67
Warning
VFD Cooling
Current Limit
Warning
VFD is actively limiting
output current to the
cooling fan motor, motor
is overloaded
Check wiring between fan motor and VFD for
incorrect or loose connections. Verify supply
voltage within tolerance. Check fan wheel for
proper alignment and balance. If possible,
manually spin fan wheel and observe rotation.
Test fan motor insulation resistance.
FV1.68
Warning
VFD Cooling
Voltage Limit
Warning
VFD has detected that
the DC bus voltage has
risen above the warning
limit, due to motor regen
or high input voltage
Verify supply voltage within tolerance. Check if
fan wheel is freewheeling when not running. Fan
deceleration may be too fast and require
parameter adjustment, contact Gardner Denver
service.
FV1.69
Fault
VFD Cooling
System Fault
Internal communication
error within the VFD
Try performing a power cycle to see if fault clears.
Contact Gardner Denver service
FV1.83
Fault
VFD Cooling
Communications
fault
VFD has detected an
error in the Modbus RTU
communication between
Check the communication cabling between the
controller and the VFD. Confirm proper cable
routing (avoiding parallel runs with AC power