Grundfos DME 2 Product Manual page 11

Functions
Indicator lights and alarm output (60 to 940)
Condition Green LED Red LED
Pump running On
Set to stop Flashing
Pump fault Off
Supply failure Off
Pump running, low
On
2
chemical level
2
Off
Empty tank
Analog signal < 2 mA Off
The dosed quantity is
too small according to
On
the signal from the
3
dosing monitor
Overheating Off
Internal
Off
communication failure
4
Off
Internal Hall Failure
Diaphragm failure
Off
5
(leakage)
Max. pressure
6
Off
5
exceeded
More pulses than
On
capacity
No detection of
On
4
motor rotation
Alarm
Display
output 1
Normal
Off
indication
1 2 3
NC NO C
Normal
Off
indication
1 2 3
NC NO C
On EEPROM
1 2 3
NC NO C
Off Off
1 2 3
NC NO C
On LOW
1 2 3
NC NO C
On EMPTY
1 2 3
NC NO C
On NO mA
1 2 3
NC NO C
NO
On
FLOW
1 2 3
NC NO C
MAX
On
TEMP
1 2 3
NC NO C
INT
On
COM
1 2 3
NC NO C
On HALL
1 2 3
NC NO C
On LEAKAGE
1 2 3
NC NO C
OVER-
On
LOAD
1 2 3
NC NO C
MAX
On
FLOW
1 2 3
NC NO C
On ORIGO
1 2 3
NC NO C
Condition Green LED Red LED
1
Control variant AR, only.
2
Requires connection to level sensors.
3
Requires activation of the dosing monitoring function and connection
to a dosing monitor.
4
Please contact a Grundfos service centre.
5
Alarms can be reset after fault conditions are back to normal.
6
The pump will make 10 attempts to restart before going into
permanent off mode.
DME and DMS
Alarm
Display
output 1
11