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Davey Speedman Dual Pump Variable Speed Pump Control System User Manual

Page 43

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43

Set Point 2-8

Closing of the contact to either of these inputs will activate the alternate set points 2 to 8. If two inputs are
activated at the same time, then the Set Point with the highest number will be the selected option. Eg If Set
Points 2 and 6 are activated Set Point 6 pressure setting will be used.
The Set-Pr will also change on the main display.

Soft Pause

An external sensor can be used to PAUSE the system. When the system receives
a PAUSE command the system will shut down in a controlled manner based on
the rates set in the response rates menu.
The system will slowly drop the pressure causing all pumps running to turn off one at a time and a message
will be shown on the main screen.

After the PAUSE input has been deactivated the system will restart under normal operations. If the Auto-
rotation is selected to FULL the lead pump will rotate.

Soft Pause JP Run

This is the same as Soft Pause except the jockey pump will continue to operate
if fitted.

Emergency Stop

An external sensor can be used to STOP the system. This is particularly useful for
sites with suction tanks to halt the pumping operation until the tank is allowed to
reach a suitable level for pumping. There are numerous other applications for the
system pause function.

When the system receives a STOP command the system will immediately shut down all pumps and indicate a
message.

After the STOP input has been deactivated the system will restart under normal operations and return pumps
to the modes they were before the “stop”. Pumps in MANUAL mode will automatically restart after deactivation
of the input. If the Auto-rotation is selected to FULL the lead pump will rotate.

Pump 1 and 2 Prot(Pause)

The Speedman has inputs for each pump to allow for individual pump protection. In the event of a pump going
into a fault condition the input for that pump should close. This will shut down the pump after the time set by
the Input Delay Timer.

The pump will become available again when the Input contact is opened.
This protection is ideal for the following pump protection sensors:

Temperature probes

Thermal Overloads

Any individual pump protection device that will auto reset with causing damage to the pump or motor is

restarted.

Pump 1 & 2 Stop

Activation of this input will instantly stop the operation of the relevant pump. This can be used as an “Off
override” switch in the system or if remote control of a pump is required. This input will override the relevant
“Pump 1-2 Manual Run” input when both are active.

PAUSE

ACTIVATED

PAUSE ON.

JP RUN

*EMERGENCY

STOP*