•
Alarm code 220 is shown on the display.
•
The alarm symbol on the display turns red and the pump
stops.
•
The warning symbol on the display turns yellow and the pump's
operating mode is unchanged.
•
Alarm code or warning code
Contactor wear out
is displayed
in Grundfos GO Remote.
Cause
The contactor has reached its maximum number of operating cycles
and is worn out.
Alarm: The contactor is worn out and the pump cannot start.
Remedy
•
Replace LC 231. Contact Grundfos.
Cause
The contactor is approaching its maximum number of operating
cycles and must be replaced.
Warning: The contactor is close to being worn out and the pump will
be unable to start.
Remedy
•
Order a new LC 231 to avoid downtime. Contact Grundfos.
Related information
6.17.4 Setting the motor protection with Grundfos GO Remote
8.27 Code 229 (Water on floor)
•
Warning code 229 is shown on the display if you press
the
Up
or
Down
button.
•
The warning symbol on the display turns yellow and the pump's
operating mode is unchanged.
•
Warning code
Water on floor
is displayed in Grundfos GO
Remote.
Cause
The sensor detects water on the floor.
Remedy
•
Check for water leakage.
9. Technical data
Voltage
•
1 x 110-240 V - 10 %/+ 10 %, PE
•
3 x 200-460 V - 10 %/+ 10 %, PE.
Frequency
50/60 Hz.
Maximum number of pump starts and stops per hour
250.
Maximum starting current
IEC: 78 A.
UL: 68 A.
Minimum power factor
0.86.
Operating temperature and current
Model
Maximum current and
temperature combination
IEC: 99369650 LC 231 2x
1-9 DOL PI
9 A
UL: 99369652 LC 231 2x
1-7.6 DOL PI
7.6 A
1
When the maximum number of running pumps is set to 1, it is possible to
set the nominal pump current to 12 A.
2
When the maximum number of running pumps is set to 1, it is possible to
set the nominal pump current to 9.6 A.
Storage temperature
Min. storage temperature
-30 °C (-22 °F)
Max. storage temperature
60 °C (140 °F)
Ambient temperature
Minimum
-25 °C (-4 °F)
Maximum
40 °C (104 °F)
Enclosure class
IP54 / NEMA 3R.
Cable diameters
Mains cable
10-16 mm (0.4" - 0.6")
Pump cable
10-16 mm (0.4" - 0.6")
16-21 mm (0.6" - 0.83"), with
optional metal cable gland
Sensor cable
5-8 mm (0.19" - 0.3")
Mains input terminal
IEC stranded or solid 2.5 to 16 mm
2
.
UL stranded or solid AWG 20 to 6.
Screw torque: 1.2 Nm.
Stripping length: 12 mm (0.47").
Pump output terminal
Current: See nameplate.
IEC stranded 0.75 to 2.5 mm
2
.
IEC solid 1.5 to 4.0 mm
2
.
UL stranded or solid AWG 18 to 12.
Screw torque: 1.2 Nm.
Alarm relay terminals
250 VAC nominal and 24 VDC nominal.
Nominal current 10 mA to 2 A AC/DC.
Action type 1.C.
D300 pilot duty (auxiliary relay).
UL: solid AWG 28-12, stranded AWG 30-12.
IEC: solid or stranded 0.25 - 2.5 mm
2
.
Stripping length: 7-8 mm (0.28"-0.31").
Screw torque: 0.5 Nm.
Digital input
IEC: solid or stranded 0.5 - 2.5 mm
2
, flexible 0.25 - 1.5 mm
2
.
UL: solid or stranded AWG 28-12.
Stripping length: 5-6 mm (0.19"-0.24").
Digital input mode
Low logic level below 1.8 V.
High logic level higher than 2.7
V.
DIO terminals
Digital input mode
Low logic level below 1.8 V.
High logic level higher than 2.7
V.
Digital output mode
Open collector.
Current sink capability:
maximum 75 mA, no sourcing.
Overcurrent protected.
PTC
IEC: solid or stranded 0.25 - 2.5 mm
2
.
UL: solid AWG 28-12, stranded AWG 30-12.
Stripping length 7-8 mm (0.28" - 0.31").
24
English (GB)
Summary of Contents for LC 231
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