Grundfos AR Installation And Operating Instructions, Supplement page 23

1. Relay function (stroke/pre-empty signal selection)
"1:OFF" or "1:ON" appears in the display.
• Use the "Up" and "Down" buttons to switch between:
– "1:OFF" relay function = stroke signal ("1/min" flashes in the
display), and
– "1:ON" relay function = pre-empty signal (empty-signal
symbol flashes in the display).
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
2. Remote off, NO/NC input
"2:NO" or "2:NC" appears in the display ("Run" and "Stop" flash in
the display).
• Use the "Up" and "Down" buttons to switch between:
– "2:NO" remote off = normally open contact, and
– "2:NC" remote off = normally closed contact.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
3. Pre-empty signal, NO/NC input
"3:NO" or "3:NC" appears in the display (empty-signal symbol
flashes in the display).
• Use the "Up" and "Down" buttons to switch between:
– "3:NO" pre-empty signal = normally open contact, and
– "3:NC" pre-empty signal = normally closed contact.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
4. Empty signal, NO/NC input
"4:NO" or "4:NC" appears in the display (empty-signal symbol
lights up in the display).
• Use the "Up" and "Down" buttons to switch between:
– "4:NO" empty signal = normally open contact, and
– "4:NC" empty signal = normally closed contact.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
5. Error signal, NO/NC output
"5:NO" or "5:NC" appears in the display ("ERROR" flashes in the
display).
• Use the "Up" and "Down" buttons to switch between:
– "5:NO" error signal relay = normally open contact, and
– "5:NC" error signal relay = normally closed contact.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
6. Relay output, NO/NC (stroke signal/pre-empty signal)
"6:NO" or "6:NC" appears in the display ("1/min" and empty-
signal symbol flash in the display).
• Use the "Up" and "Down" buttons to switch between:
– "6:NO" stroke/pre-empty signal relay = normally open
contact, and
– "6:NC" stroke/pre-empty signal relay = normally closed
contact.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
7. Hall sensor on/off
"7:ON" or "7:OFF" appears in the display ("bar" flashes in the
display).
• Use the "Up" and "Down" buttons to switch between:
– "7:ON" Hall sensor = connected, and
– "7:OFF" Hall sensor = not connected.
• Press the "Menu/Info" button.
Confirm the setting and move on to the next menu item, or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
8. Locking "run" on/off
The locking of the "Start/Stop" button to prevent manual stopping
of the pump can be enabled and disabled.
The display indicates "8:ON" or "8:OFF" (the "Run" symbol is
displayed).
• Use the "Up" and "Down" buttons to switch between:
– "8:ON" locking "run" on, and
– "8:OFF" locking "run" off.
• Press the "Menu/Info" button or
• press the "Start/Stop" button and switch the power supply off,
then on again.
Close the service level and confirm the setting.
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