Grundfos Multilift M Montage- Und Betriebsanleitung Seite 9

Type key, LC 221 controller
Example LC 221 .1 .230 .1 .10 .30
LC 221 = controller type
1 = one-pump controller
2 = two-pump controller
Voltage [V]
1 = single-phase
3 = three-phase
Max. operating current [A]
Capacitors [μF]
Starting method:
[ ] = DOL
SD = Star-delta
Nameplate, LC 221 controller
Controller type, voltage variant, etc. are stated in the type
designation on the nameplate situated on the side of the
controller cabinet.
1
2
Type LC 221.1.230.1.10.30/150 MPU
3
98189707
Prod.-No.
4
1221 Serial no.
P.c.
5
Phases 1
6
I 10 A
Pump max
7
U 250
V
contact max
I 16
A
Fuse max
8
O
T 0 C
Amb min
I
c < 10 kA
IP55
Fig. 7 Example of an LC 221 nameplate
Pos. Description
1 Type designation
2 Product number
3 Production code (year, week)
4 Number of phases
5 Maximum pump input current
6 Maximum voltage at potential-free contact
7 Maximum backup fuse
8 Minimum ambient temperature
9 Version
10 Serial number
11 Rated voltage
12 Power consumption
13 Maximum current at potential-free contact
14 Weight
15 Maximum ambient temperature
16 Frequency
9
10
V01
11
0012
12
U 220-240 V
13
P 3 W
max
14
I 2
A
contact max
kg
G 5.2
15
T 40 O
C
Amb max
16
f 50 Hz
Made in Germany
5.2.1 Design
The LC 221 level controller incorporates the necessary
components to control and protect the pumps, such as relays and
capacitors for single-phase motors, contactors and additional
motor-protective circuit breaker for three-phase motors (> Multilift
M22).
The control panel offers a user interface with operating buttons
and a display for indication of operating conditions and fault
indications.
Furthermore, it has an integrated piezoresistive pressure sensor
which is activated by compressed air directly via the pressure
tube inside the collecting tank. Finally, it has terminals for power
supply, connection to the pump and the inputs and outputs
mentioned in section 5.2 LC 221
The front cover is closed by four bayonet fastenings with quarter
turn locks. On the left side, the locks are extended and connected
to the cabinet bottom with hinge strings. The cabinet offers the
possibility of being mounted on a wall without opening it first.
A drilling template and six screws with rubber guides are
enclosed.
Fig. 8 Mounting of LC 221 controller
controller.
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