Davey Speedman Dual Pump Variable Speed Pump Control System - Manual (Page 44)

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Pump 1 and 2 Manual Run
Activation of this input will instantly start the relevant pump. All automatic control of the pump is ceased at this
stage.
This action can cause an alarm or shutdown condition. (See Manual operation)
Fire Mode
FIRE MODE directs the Speedman to ignore all shutdown alarms/faults and the pumps will continue under all
conditions. The following protection features are disabled:
• High Pressure Shutdown
• Low Pressure Shutdown
• System Pause
• No Flow
• Individual Pump Protection
• Pump 1-6 Stop
**Be sure to understand the possible repercussions of activating this Input.
Forcing pumps to run in the presence of system faults can damage pumps and equipment. FIRE MODE
should be used only if the risk of the pump stopping is greater than letting it run to destruction.
Some VSD’s have a similar function and will override the protections within the VSD if an input is toggled.
Contact your local dealer for further information regarding this feature.
Hardware items such as circuit breakers, Thermal Overloads and any other switchgear protection is not
affected by this mode.
Cycle pumps
Activation of this input will shutdown and then cycle the pumps to the next available pump as the lead pump. If
pump 1 started first on the last start-up, the toggling of this input will switch the lead pump to pump 2 instantly
on receipt of this signal.
VSD Fault
In the event of a VSD fault this input will initiate a “retry cycle” to attempt to reset the VSD. On receipt of this
signal the system will attempt to clear the fault by sending a reset message to the VSD after a 15 second
delay. This will be repeated until the VSD is restored to an operational level.
During this cycle the Low-Pressure Shutdown protection is disabled to allow the system to recover
automatically.
De-powering and then re-energising the switchboard will generally clear VSD faults. See VSD Fail for more
configuration information
Reset
The reset input allows remote resetting of Speedman after a shutdown fault. If Speedman has shutdown due
to a fault (for any reason) closing the reset contact will reset all current faults and restart the system.
(VSD Fault excluded)