Fault Descriptions - Gram IF 4000 Manual De Uso

Fault Descriptions

Table 4.A Fault Types, Descriptions and Actions
No. Fault
F2 Auxiliary Input
F3 Power Loss
F4 UnderVoltage
F5 OverVoltage
F6 Motor Stalled
F7 Motor Overload
F8 Heatsink
OvrTmp
F12 HW OverCurrent
F13 Ground Fault
(1)
See page 4-1 for a description of fault types.
Description
Auxiliary input interlock is open.
DC bus voltage remained below
85% of nominal.
DC bus voltage fell below the
minimum value.
DC bus voltage exceeded
maximum value.
Drive is unable to accelerate
motor.
Internal electronic overload trip.
Heatsink temperature exceeds a
predefined value.
The drive output current has
exceeded the hardware current
limit.
A current path to earth ground
has been detected at one or
more of the drive output
terminals.
Troubleshooting
Action
1. Check remote wiring.
2. Verify communications
programming for intentional fault.
1. Monitor the incoming AC line for
low voltage or line power
interruption.
2. Check input fuses.
Monitor the incoming AC line for low
voltage or line power interruption.
Monitor the AC line for high line
voltage or transient conditions. Bus
overvoltage can also be caused by
motor regeneration. Extend the
decel time or install dynamic brake
option.
Increase P039 - A067 [Accel Time x]
or reduce load so drive output
current does not exceed the current
set by parameter A089
Limit].
1. An excessive motor load exists.
Reduce load so drive output
current does not exceed the
current set by parameter P033
[Motor OL Current].
2. Verify A084 [Start Boost]
1. Check for blocked or dirty heat
sink fins. Verify that ambient
temperature has not exceeded
40°C (104°F) for IP 30/NEMA 1/UL
Type 1 installations or 50°C (122°F)
for IP20/Open type installations.
2. Check fan.
Check programming. Check for
excess load, improper A084
Boost] setting, DC brake volts set
too high or other causes of excess
current.
Check the motor and external wiring
to the drive output terminals for a
grounded condition.
4-3
[Current
setting
[Start