Grundfos Multilift MSS Installation And Operating Instructions Manual page 8

5.2.3 Internal layout of LC 220
Figure 9 shows the internal layout of LC 220.
82 81
Fig. 9 Internal layout of LC 220
Pos. Description
1 Terminals for power supply
2 Terminals for connecting the pump
3 Terminals for connecting an external level switch 230 V, NO
4 Terminals for "common alarm" output signal
PCB with piezoresistive analogue pressure
5
sensor
6 DIP switch
7 Software service connector (PC Tool)
8 Control circuit fuse, fine-wire fuse
9 Battery (non-rechargeable)
Terminals for additional high water-level alarm
10
(inside the tank), digital
8
Note: Cable connection for pos. 10:
Use a cable tie if leads protrude more than 20 mm
from the cable sheath.
HIGH
LOW
Potential-free changeover contacts NO/NC with
max. 250 V / 2 A
0-5 V
1. Inlet height:
ON = HIGH = 250 mm (factory setting)
OFF = LOW = 180 mm
2. Reset setting:
ON = Automatic (factory setting)
OFF = Manual
3. Service interval:
ON = 1 year
OFF = None (factory setting)
4. Reset setting (only in case of sensor
replacement)
ON = Safe (normal position, factory setting)
OFF = Switch briefly to OFF for the sensor to
adjust to the ambient pressure. See service
instructions.
6-pole connector
100 mAT/20 mm x ∅5
9 V
Terminal numbers
PE, N, L3, L2, L1
W1, V1, U1, N, PE
13, 14
31, 32, 33
81, 82