Altivar® 58 TRX AC Drives
Fault Management Parameters
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09/2003 © 2000–2003 Schneider Electric All Rights Reserved
FAULT MANAGEMENT PARAMETERS
The ATV58 TRX drive is equipped with features that are designed to protect the drive controller and
motor, and to provide process related inf o rmation. Un de rsta ndi ng the fault management capabilities of
the drive controller and determining the proper configuration for the application can enhance the total
system installation and performance over the life o f the equip ment. The f au lt messages provi ded b y the
drive controller can be divided into three categories:
• Protective faults are displayed when the drive detects cond itions that ma y damage the driv e controller
and/or motor. The drive controller shuts down to prevent further damage from occurring.
• Drive faults are displayed when a problem in the drive needs to be diagnosed.
• Process faults are displayed when a process signal used by the drive controller is interrupted.
Fault Relay
The fault relay (R1) provides 1 normally open and 1 normally closed con tact. The rela y is energize d and
the state of the contacts reverses when the driv e controller is pow ered up and a fa ult is not pres ent. This
relay cannot be re-assigned.
Resetting a Fault
The drive controller can be reset after a fault by one of three methods:
• Turning power to the drive controller off, wait for the LEDs to go off, and apply power.
• Using the reset button on the keypad, if programme d f or lo cal c ontrol, or b y a logi c inp ut assign ed to
Fault Re set.
• By the Automatic Restart function if configured.
Automatic Restart
This function permits automatic restarting after the drive controller detects a fault, pro vided that the other
operating functions are correct, a Run command is present, and the fault has disappeared. The factory
setting for this function is NO. The number of restart attempts and the delay betwe en these attempt s is
selectable.
When the Auto restart is selected, the fault relay remain s energiz ed so that th e driv e control ler does not
signal a fault from a condition from which it ma y be able to resta rt. If the f ault has disappeare d, the d rive
controller will attempt to restart the motor after the delay time configured. The a uto res tart dela y t ime is
factory set at 30 seconds and has an adjustable range of 0.1 to 999.9 seconds. If the drive controller
remains faulted after attempting the configured number of restarts, the fault relay will then deenergize.
The drive controller must be reset by cycling power afte r the cause of the fau lt has been e liminated. The
number of restart attempts is factory set at 5 and has an adjustable range of 0 to 255.
Fault Messages
Protective Faults Drive Faults Process Faults
Input phase loss Precharge fault Loss of 4-20 mA signal
Undervoltage EEPROM fault Loss of RS-485
Overvoltage Internal fault External fault
Drive overheating Internal communication fault Speed feedback fault
Motor overload Power rating error Communication network fault
Overbraking Option error
Motor phase loss Option removed
Overcurrent EEPROM checks
Motor short circuit
Motor overheating
Thermal sensor fault
Overspeed
Ramp not followed
R1A R1B R1C
Fault Relay.eps
Fault Relay Diagram