Technical data

Functions
9
DME
3
Indicator lights and alarm relay output
Operating state Green indicator light Red indicator light Display Alarm relay output
★ 1
Pump running On Off Normal indication
Set to stop Flashing Off Normal indication
Pump fault Off On EEPROM
Supply failure Off Off Off
Pump running, low chemical level
★ 2
On On LOW
Empty tank
★ 2
Off On EMPTY
Analog signal < 2 mA Off On NO mA
Insufficient dosing according to signal from dosing
monitor
★ 3
On On NO mA
Overheating Off On MAX TEMP
Internal communication failure Off On INT COM
Internal Hall failure
★ 4
Off On HALL
Diaphragm failure (leakage)
★ 5
Off On LEAKAGE
Max. pressure exceeded
★ 5
Off On OVERLOAD
More pulses than capacity On On MAX FLOW
No detection of motor rotation
★ 4
On On ORIGO
132
NC NO C
132
NC NO C
1
23
NC NO C
132
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
1
23
NC NO C
★ 1
Applies only to control variant AR.
★ 2
Requires connection to level sensor.
★ 3
Requires activation of the dosing monitoring function and connection to a dosing monitor.
★ 4
Please contact a Grundfos service centre.
★ 5
After the fault has been rectified, press to reset alarm.
★ 6
The pump makes 10 attempts to restart before going into permanent off mode.