Rockwell Automation MD65 User Manual Version 2.0 User Manual
Page 110
10-4
MD65 AC Drive User Manual
F8
Heatsink
OverTemp
Y Heatsink temperature
exceeds a predefined
value.
•
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 Open type
installations.
•
Check fan.
F12
HW
OverCurrent
N The drive output
current has exceeded
the hardware current
limit.
Check programming.
Check for excess load,
improper Boost Select
(A084) setting, DC brake
volts set too high, or other
causes of excess current.
F13
Ground Fault
N A current path to earth
ground has been
detected at one or
more of the drive
output terminals.
Check the motor and
external wiring to the drive
output terminals for a
grounded condition.
F29
Analog Input
Loss
Y An analog input is
configured to fault on
signal loss. A signal
loss has occurred.
Configure with Analog
In Loss (A122).
•
Check parameters.
•
Check for broken/loose
connections at inputs.
F33
Auto Rstrt
Tries
N Drive unsuccessfully
attempted to reset a
fault and resume
running for the
programmed number
of Auto Rstrt Tries
(A092).
Correct the cause of the
fault and manually clear.
F38
Phase U to
Gnd
N A phase to ground fault
has been detected
between the drive and
motor in this phase.
•
Check the wiring
between the drive and
motor.
•
Check motor for
grounded phase.
•
Replace drive if fault
cannot be cleared.
F39
Phase V to
Gnd
F40
Phase W to
Gnd
Table 10.1 – Fault Descriptions and Corrective Actions (Continued)
No.
Fault
A
uto-Re
set
1
?
Description
Action