Grundfos Multilift M Series, Installation And Operating Instructions Manual

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English (GB)
17
5.2.3 Internal layout of LC 221
Figure 10 shows the internal layout of LC 221.
Fig. 10 Internal layout of LC 221 (three-phase PCB as example)
TM
05
19
39
40
11
-
TM
05
37
19
17
12
20
7
7
>20
Note: Cable connections for pos. 6-11:
Use a cable tie if leads protrude more than
20 mm from the cable sheath.
Pos. Description Comments Terminal designation
1 Terminals for power supply PE, N, L3, L2, L1
2 Terminals for connecting pump 1 PE, N, W1, V1, U1
3 Terminals for thermal switch, pump 1 T1, T2
4 Terminals for external alarm (outside the tank) 230 V 11, 12
5 Terminals for external reset 230 V 13, 14
6 Terminals for common fault Potential-free changeover NO/NC
contacts with max. 250 V / 2 A.
Attention : Connect these terminals
to supply network potential or low
voltage, but do not mix the two.
X11
7 Terminals for high water-level alarm X10
8 Terminals for failure, pump 1 X8
9 Terminals for operation, pump 1 X6
10
Terminals for level switches (optional) Digital 81-88
Terminals for additional high water-level alarm
(inside the tank)
Digital 81, 82
11 Terminals for analogue sensor 0-5 V or 4-20 mA 91 (GND), 92 (Signal), 93 (12 V)
12 Service connector to PC Tool -
13 Connector for GENIbus interface module -
14 Control circuit fuse
Fine-wire fuse:
100 mA / 20 mm x
∅
5
-
15 Piezoresistive pressure sensor module 0-5 V -
16 DIP switches (not in use for this application) -
17 Connector for battery, 9 V (accessory) -