ABB ACS 502 Series, Инструкция по установке и запуску

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Chapter 6 – Fault Tracing
6-2 ACS 502 Installation & Start-up Manual
Fault messages of
ACS 502/504
Fault message Possible reason Remedy
1 START/STOP The start/stop reference from Control Interface
Card is different from the start/stop state of the
Motor Control Card. Check the connection between Control Interface
and Motor Control Cards. If the fault persists,
contact ABB Technical Support.
2 OVER TEMP The heatsink temperature has been above 185°F
(85°C) and has not fallen below 167°F (75°C).
Restricted air flow caused by dust or
inappropriate installation; overloading or a
component failure (fan, power semiconductors).
If the display shows a negative temperature,
when the ambient (and heatsink) is obviously
warmer, the thermostat S1 has probably opened
(due to Rectifier bridge overtemperature). If this
fault appears at start, it is possible that terminal
X307 on Main Circuit Interface Card is loose. Check that ambient temperature is < 104°F
(< 40°C). Check that the drive was not
overloaded for too long. Check the fan and air
flow. Check the fuses on SNAT 7902 INP. Check
that T61 primary and secondary connections are
OK. Check heatsink fins, remove any dust or dirt.
If the fault persists, contact a service
representative. If the temperature display was
negative, check the line fuses.
3 MOT STALL The ACS 502/504 has determined that the motor
is operating in the stall region. Refer to
Parameter 30.1.10 (Stall Time/Freq). The motor
is not turning because of increased load torque.
Motor may be too small for the application. Remove mechanical problem causing increased
load torque. If the motor shaft is rotating and the
motor is not overheating, increase stall limit
parameters. Check dimensioning, use larger
drive and motor if necessary.
4 MOTOR TEMP The ACS 502/504 has determined that there is a
high probability that the motor is overheated.
Because the temperature rise is calculated from
the motor current and not measured directly, the
motor may be within temperature rise
specification. Check the motor temperature. If it is within
temperature rise specification, increase
Parameter 30.1.5 (Motor Load Curve) and/or
Parameter 30.1.4 (Motor Therm Time) and
restart. If the motor temperature is above rated
temperature, improve motor cooling or resize the
motor.
7 UNDER LOAD The motor load has dropped below the
supervision limit set by Parameters 30.1.12 and
30.1.13. Remove mechanical problem causing underload.
Check motor load cycle and increase Parameter
30.1.12 (Underload Time) or change Parameter
30.1.13 (Underload Curve).
8 OVERCURR1 The output current instantaneous value has
exceeded 375% of I
N
. Too short acceleration time
relative to load inertia is the most common cause
of an overcurrent trip. Also sudden shocks in the
load torque may cause this trip. If the field
weakening point is set too low or if there is too
much IR-compensation, an overcurrent trip may
follow. An oversized motor, a short circuit, or
other hardware failure in the motor, motor cable,
or in the drive itself may also cause this trip.
Check the load torque conditions and
accelerating time. Make sure that there is no
short circuit or ground fault in the motor circuit.
See that there is no other load than the motor
(especially capacitors) connected to the power
output.
8 OVERCURR3 This trip originates from the supervisory circuits
on the gate pulse channels on the Main Circuit
Interface Card. An undervoltage at any of the
gate pulse channels’ aux/- 15 V supply
will cause this trip.
If the fault persists after resetting, it is most
probably due to undervoltage at a pulse channel.
Replace the Main Circuit Interface Card.
If the fault persists after starting the drive once,
contact ABB Service. Do not try to restart the
drive several times, since this may lead to other
hardware failures.