ABB ACS 501 Installation & Start-Up Manual page 52

ACS 501 Installation & Start-up Manual
Fault Message
8 OVER CURR1 The output current has
exceeded 265% I
caused by a short circuit or
ground fault in the motor,
motor cable, or in the ACS 501.
Too short acceleration time
may also cause an overcurrent
trip.
9 OVER VOLT DC bus voltage has exceeded
135% nominal voltage.
Overvoltage is generally
caused when the motor runs as
a generator in drives where the
load inertia is extremely high
and the deceleration time is set
low.
10 UNDER V 1 DC bus voltage has gone below
65% of V
reason for low voltage trip is
failure in the supply voltage,
loss of phase, or "brown out"
condition.
11 AI < MIN Analog input is less than the
minimum as set by Parameters
10.5.1 and 10.5.5.
16 PWR RNGE Power range programming
does not match after replacing
the Control Interface or Motor
Control Cards.
19 IN COMMS Failure in serial communication
within the Control Interface
and/or Motor Control Cards.
20 CON INT This fault is related to
components in the Control
Interface Card.
Possible Cause
• The number after the notice
. This can be
N
Refer to Figure 5-3 at the end
of this chapter.
• Use longer deceleration time
• Use coasting stop function if
• If short deceleration time is
• Check supply voltage.
. Most common • If supply voltage was
N
Input reference has failed or
control wire is broken. Check
the reference circuit.
• Check the power range
• Remove power, wait one
• Check the cabling between
• If the fault persists, contact
• Remove power, wait one
• If the problem persists, call
Chapter 5 – Fault Tracing
Remedy
tells what overcurrent
protection circuit has tripped.
or
it is compatible with the
application.
needed, use Dynamic
Braking Device.
adequate, an internal failure
has occurred. Contact ABB
Technical Support.
programming on Motor
Control Card.
minute, then restore power. If
the fault persists, contact
ABB Technical Support.
Control Interface and Motor
Control Cards.
ABB Technical support.
minute, then restore power.
ABB Technical Support.
Record the specific fault
code, you may be asked for
it.
5-5