Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

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OPERATION
Control Options
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Auto Restart Timer after Faults
VFD provides ability to Auto-restart after time delay when tripped on fault.
If at any time during the auto restart process the run command is removed, the timer will finish and reset
the fault, but the VFD will not start until the run command is reapplied.
NOTE: Shutdown and Fireman’s Override Mode will override the restart process.
To modify the auto restart process, work with the following parameters:
Auto Timer Cntr [PROT-09]: Sets a minimum run time for successful restart and resetting a retry counter
during retry attempt. Default = 3 hours.
Auto Restarts [PROT-10]: Set the allowed number of retry attempts. Range = 0 to 10 tries. Default = 3
restarts.
Auto Retry Delay [PROT-11]: Sets a time delay before the next restart attempt. Range = 0 to 6000 seconds.
Default = 120 seconds.
Minimum Run Timer
The Minimum Run timer delays VFD stop when a run command is removed. This timer is useful in vacuum
pump, pressure washer and similar applications.
Submersible motors should run for a minimum of one minute to dissipate heat build-up from starting cur
-
rent.
Set the following parameter to activate this feature:
Minimum Run [ADV–34]: Range = 0 to 6000 seconds. When set to 0 sec, it is disabled.
When set to value greater than 0 and VFD is started in Auto mode, Minimum Run timer will start counting.
During timer counting VFD will continue to run even if start command is removed.
Shutdown feature will override this timer.
Backspin Timer
The Backspin timer is designed to protect the VFD from tripping when starting a reverse spinning motor
caused by water back-flow through a pump (no check valve) right after it was stopped.
Set the following parameter to activate this feature:
Backspin Timer [ADV–30]: Range = 0 to 6000 seconds. When set to 0 sec, it is disabled.
When set to value greater than 0 and VFD stops, Backspin timer will start counting. During backspin time
VFD is disabled and cannot be started in Hand or Auto mode.