Parker AC30 series - Using the Keypad to Manage Trips

Trips & Fault Finding 10-2
AC30V series Variable Speed Drive
USING THE KEYPAD TO MANAGE TRIPS
Trip Messages
If the drive trips, then the display immediately shows a message indicating the reason for the trip. The possible trip messages are given in the
table below.
ID
Trip Name
Possible Reason for Trip
1
OVER VOLTAGE
The drive internal dc link voltage is too high:
• The supply voltage is too high
• Trying to decelerate a large inertia load too quickly; DECEL TIME time too short
The brake resistor is open circuit
To help prevent this trip, enable the DC Link Volts Limit feature
2
UNDER VOLTAGE
DC link low trip:
• Supply is too low/power down
3
OVER CURRENT
The motor current being drawn from the drive is too high:
• Trying to accelerate a large inertia load too quickly; ACCEL TIME time too short
• Trying to decelerate a large inertia load too quickly; DECEL TIME time too short
• Application of shock load to motor
• Short circuit between motor phases
• Short circuit between motor phase and earth
• Motor output cables too long or too many parallel motors connected to the drive
•
FIXED BOOST level set too high
4
STACK FAULT
Stack self protection
• Instantaneous overcurrent detected by the power stack. Refer to OVERCURRENT in this table.
• Instantaneous over voltage event. Refer to OVER VOLTAGE in this table
5
STACK OVER CURRENT
The motor current exceeded the capabilities of the power stack.
• Instantaneous overcurrent detected by the power stack. Refer to OVERCURRENT in this table.
6
CURRENT LIMIT
V/Hz mode only: If the current exceeds 200% of stack rated current for a period of 1 second, the drive will
trip. This is caused by shock loads
7
MOTOR STALL
The motor has stalled (not rotating) Drive in current limit >200 seconds:
• Motor loading too great
• FIXED BOOST level set too high
8
INVERSE TIME
A prolonged overload condition, exceeding the Inverse Time allowance, has caused the trip:
• Remove the overload condition
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