Underload Protection; Earth Fault Protection; Incorrect Wiring; Input Phase Loss - ABB ACS350 User Manual

Underload Protection

Loss of motor load may indicate a process malfunction. The drive provides an
underload function to protect the machinery and process in such a serious fault
condition. Supervision limits - underload curve and underload time - can be chosen
as well as the action taken by the drive upon the underload condition (alarm
indication / fault indication & drive stop / no reaction).
Settings
Parameters

Earth Fault Protection

The Earth Fault Protection detects earth faults in the motor or motor cable. The
protection is active only during start.
An earth fault in the input power line does not activate the protection.
Settings
Parameter

Incorrect wiring

Defines the operation when incorrect input power cable connection is detected.
Settings
Parameter

Input phase loss

Input phase loss protection circuits supervise the input power cable connection
status by detecting intermediate circuit ripple. If a phase is lost, the ripple increases.
Settings
Parameter

Preprogrammed faults

Overcurrent

The overcurrent trip limit for the drive is 325% of the drive nominal current.

DC overvoltage

The DC overvoltage trip limit is 420 V (for 200 V drives) and 840 V (for 400 V drives).

DC undervoltage

The DC undervoltage trip limit is 162 V (for 200 V drives) and 308 V (for 400 V
drives).
3013...3015
3017 EARTH FAULT
3023 WIRING FAULT
3016 SUPPLY PHASE
117
Program features