Product manual

7-2
Trips and Fault Finding
650 Series AC Drive
Display
DisplayDisplay
Display Trip Message and Meaning
Trip Message and MeaningTrip Message and Meaning
Trip Message and Meaning Possible Reason for Trip
Possible Reason for TripPossible Reason for Trip
Possible Reason for Trip
EXTERNAL TRIP The external trip input is high. Check configuration to
identify the source of the signal (non-standard
configuration)
LOST I LOOP (Disable: )
A current of less than 1mA is present when 4-20mA
setpoint is selected – look for a wire break
STALL (Disable: )
The motor has stalled (not rotating)
Drive in current limit >200 seconds
Motor loading too great
FIXED BOOST level set too high
TERMINAL 3 OVERLOAD AIN2 overload – overcurrent applied in Current mode
DISPLAY (KEYPAD)
Keypad has been disconnected from
drive whilst drive is running in Local
Control
Keypad accidentally disconnected from drive (indicated
over comms, or by second keypad)
SERIAL COMMS COMMS TIMEOUT parameter set too short
Master device failed
Wiring broken
Incorrect comms setup
CONTACTOR FEEDBACK Check connection to the terminal wired to "contactor
closed" parameter in Sequencing Logic (non-standard
configuration)
MOTOR OVERTEMPERATURE
The motor temperature is too high
Excessive load; motor voltage rating incorrect; FIXED
BOOST level set too high; prolonged operation of the
motor at low speed without forced cooling; break in
motor thermistor connection
CURRENT LIMIT
Software overcurrent trip
If the current exceeds 180% of stack rated current for a
period of 1 second, the drive will trip. This is caused by
shock loads. Remove the shock load. Other causes are:
ACCEL TIME and/or FIXED BOOSTset too high; DECEL
TIME set too low
LOW SPEED OVERCURRENT
The motor is drawing too much
current (>100%) at zero output
frequency
Fixed BOOST level set too high
TERMINAL 4 OVERLOAD +10V REF overload warning - 10mA maximum
DESATURATION Instantaneous overcurrent. Refer to OVERCURRENT in
this table.
DC LINK RIPPLE
A dc link ripple alert
Supply imbalance in a 3-phase system
Poor supply regulation in a 1-phase system
DYNAMIC BRAKE SHORT
Brake resistor overcurrent
Check brake resistor value is greater than minimum
allowed
TERMINAL 5 OVERLOAD AOUT overload - 10mA maximum
TERMINAL 9 OVERLOAD DIN3 overload – 20mA maximum
TERMINAL 10 OVERLOAD DOUT2 overload – 50mA maximum
UNKNOWN TRIP
Unknown trip
OTHER
"OTHER" trip is active (Trip ID 33)
ZERO I CURRENT CALIBRATION
Current sensor calibration fault. Switch unit off/on. If
persistent, return unit to factory