Installation manual

Detected Fault Management Parameters
124 S1A53838 09/2011
Description
The table below lists the detected faults that can be cleared with Auto clear. If parameter F303 is set to a value greater than
0 and one of these detected faults occurs, the drive will attempt to automatically clear the detected fault, allowing it to be re-
started:
Fault detection codes that can be cleared with the automatic restart function after the cause has disappeared
Auto clear attempts will continue until the number of attempts set by parameter F303 has been exhausted.
If these attempts do not clear the detected fault condition, the drive will stop and a manual clear will be required.
If another type of
detected fault occurs during the auto clear process, the drive will stop and a manual clear will
be required.
A successful auto clear means that the drive accelerates the motor to the commanded speed without another
detected fault occurring.
If an unspecified period of time elapses after a successful auto clear attempt without another detected fault
occurring, the reset attempt counter will clear allowing another full set of reset attempts to be made during a
future detected fault occurrence.
During the auto clear process, the drive embedded display terminal alternately displays rtrY and the display
value selected by parameter [Displayed param.] (F710), page 120
.
Conditions permitting auto clear
An auto clear attempt will not be made if the cause of the detected fault persists.
In the case of an OL1 or OL2 overload detected fault, the drive will calculate the cooling time necessary to
clear the detected fault.
In the event of an OH detected fault, the heatsink temperature probe will indicate when the detected fault can
be cleared.
DC bus voltage measurements will indicate when an OP1, OP2, or OP3 detected fault can be cleared.
Code Name / Description Factory setting
F303 [Number auto reset]
0
DANGER
UNINTENDED EQUIPMENT OPERATION
z The automatic restart can only be used on machines or installations which do not pose any danger to either personnel or
equipment.
z If the automatic restart is activated, the fault relay will only indicate a fault has been detected once the time-out period for the
restart sequence has expired.
z The equipment must be used in compliance with national and regional safety regulations
Failure to follow these instructions will result in death or serious injury.
0
1 to 10
Disabled.
Number of clear attempts.
Code Description Code Description
Fd1
Damper detected fault 1 (closed damper)
OH2
External overheating
OC1
Overcurrent during acceleration
OL1
Drive overload
OC2
Overcurrent during deceleration
OL2
Motor overload
OC3
Overcurrent during constant speed
OP1
Overvoltage during acceleration
OC1P
Short-circuit or ground detected fault during
acceleration
OP2
Overvoltage during deceleration
OC2P
Short-circuit or ground detected fault during
deceleration
OP3
Overvoltage during constant state operation
OC3P
Short-circuit or ground detected fault during
constant speed operation
SOUt
Permanent magnet motor step-out
OH
Drive overheating