Flowserve NRGS15-1 - Manual (Page 23)

23
Commissioning
– contin ued –
Check sw itching functions
- co ntinu ed -
Electrode rod 3 = timed pum p control (fill control)
Electrode rod 3 emerges Relay3 is energized, pump ON
LED 3
illuminated
Electrode rod 3 enters the
liquid Relay3 is de-energized after a preset time delay
(0 – 30 sec.) = pump OFF
LED 3 off
Relay 3 is de-energized too early or too late: Increase or decrease time delay with the aid of the
potentiometer and let electrode tip 3 emerge or enter the liquid again. Repeat the process until
you have found the correct switchpoint for the pump. If 30sec. time delay is not enough for filling
the boiler, please select the operation mode "on-off pump control".
Electrode rod 3 = on-off pump control (fill control)
Set potentiometer for time delay to 0 sec.
Electrode rods2 and 3
exposed
Relay3 is energized, pump ON
LEDs2 and 3
illuminated
Electrode rod 2 enters the
liquid
LED 2 off
Electrode rod 3 enters the
liquid
Relay3 is de-energized = pump OFF LED 3 off
Electrode rods 2 and 3 = on-off pump control (discharge control)
Set potentiometer for time delay to 0 sec.
Electrode rods2 and 3
submerged
Relay3 is energized, pump ON
LED 2 off and
LED 3
illuminated
Electrode rod 3 emerges LED 3 off
Electrode rod 2 emerges Relay3 is de-energized = pump OFF
LED 2
illuminated