Firmware Manual

Appendix A—Description of Parameters
PowerXL DG1 Series Adjustable Frequency Drives MN040004EN—March 2014 www.eaton.com 167
P9.24 321 Wait Time 1, 2, 3, 4 RW
Defines the time before the frequency converter tries to automatically restart the
motor after the fault condition has been received.
P9.25 322 Trial Time 1, 2, 3, 4 RW
The Automatic restart function restarts the frequency converter when the faults
selected with P9.27 to P9.32 have cleared and the waiting time has elapsed.
Figure 64. Example of Automatic Restarts with Two Restarts
P9.27 to P9.32 determine the maximum number of automatic restarts during the trial
time set by P9.25. The time count starts from the first autorestart. If the number of
faults occurring during the trial time exceeds the values of P9.27 to P9.32 the fault
state becomes active. Otherwise the fault is cleared after the trial time has elapsed
and the next fault starts the trial time count again.
If a single fault remains during the trial time, a fault state is true.
P9.26 323 Start Function 1, 2, 3, 4 RW
The Start function for Automatic restart is selected with this parameter. The
parameter defines the start mode:
0 Start with ramp
1 Flying start
2 Start according to P7.9
P9.27 324 Undervoltage Attempts 1, 2, 3, 4 RW
This parameter determines how many automatic restarts can be made during the
trial time set by P9.25 after an undervoltage trip.
>0 No automatic restart
>0 Number of automatic restarts after undervoltage fault. The fault is reset and the
drive is started automatically after the DC-link voltage has returned to the
normal level
P9.28 325 Overvoltage Attempts 1, 2, 3, 4 RW
This parameter determines how many automatic restarts can be made during the
trial
Time set by P9.25 after an overvoltage trip.
>0 No automatic restart after overvoltage fault trip
>0 Number of automatic restarts after overvoltage fault trip. The fault is reset and
the drive is started automatically after the DC-link voltage has returned to the
normal level
Code Modbus ID Parameter Application
RO/RW
Fault Trigger
Motor Stop Signal
Motor Start Signal
Supervision
Fault State Active
RESET/Fault Reset
Wait Time
Par. P9.23
Wait Time
Par. P9.23
Wait Time
Par. P9.23
Restart 1 Restart 2
Trial Time
Par. P9.24
Auto Function: (Trials = 2)