Extended Configuration
Trim Level Control
Pump Stop Delay
It may not be possible to install a level sensor or switches low enough in the sump. Thus,
the sump is not emptied completely when the last running pump is stopped.
Function: Stop delay time
1. Sump level drops below the normal stop level for the last running pump.
Result: Timer is started.
2. Timer exceeds the stop delay time.
Result: The last running pump is stopped.
Configure stop delay
• To delay the pump stop, specify the time in the Stop delay time menu (13_5).
• To disable the stop delay, enter "0" as Stop delay time.
High Level Runtime
A high level switch is a backup used to start the pumps during a high sump level.
Before using this function
Configure a General purpose input as high level switch input.
Function: High level runtime
Phase
Description
1
Sump level exceeds the high level switch.
Result:
Available pumps are started.
A high level alarm is generated.
2
Sump level drops below the high level switch.
Result: Timer starts.
3
Timer exceeds the high level run time.
Result:
Pumps are stopped.
The sump level drops below a low level switch.
Result:
• Pumps are stopped,
• Remaining high level run time is skipped.
Specify high level runtime
Specify the runtime in the High level run time menu (13_15)
Configure Pump Control
EX-classified Environment
NOTICE:
This function should be enabled when the RTU is used in an EX-classified environment.
Function: EX-mode
When no liquid is detected in the sump, all pumps are blocked. The starting method will
not matter, that is, any manual start attempt, maintenance run, or remote start command
will be blocked.
Extended Configuration
20
APP 541 User manual
Summary of Contents for APP 541
Page 1: ...APP 541 User manual Autamatic Pump Pilot APP 541 Reset Esc OK ...
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Page 9: ... Reference For a detailed menu list refer to Appendix A Shortguides APP 541 User manual 7 ...
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