Wilo Control MS-L Installation And Operating Instructions Manual page 23

Control MS-L1.../MS-L...-O
GL HW
WSK
3
1 2 3 4 5 6
Control MS-L1...-LS
Sensor
WSK + ln
3
1 2 5 6
Control MS-L2.../MS-L...-O
WSK WSK
GL SL
-P1 -P2
3
1 2 3 4 5 6 7 8
Control MS-L2...-LS
WSK WSK Sensor
-P1 -P2 + ln
3
1 2 3 4 9 10
Fig. 11: Terminal strip sensors: thermal motor
monitoring
6.5.8 Connection of signal transmitter
for level control device
Control MS-L1.../MS-L...-O
GL HW
WSK
3
1 2 3 4 5 6
Control MS-L1...-LS
Sensor
WSK + ln
3
1 2 5 6
Control MS-L2.../MS-L...-O
WSK WSK
GL SL
-P1 -P2
3
1 2 3 4 5 6 7 8
Control MS-L2...-LS
WSK WSK Sensor
-P1 -P2 + ln
3
1 2 3 4 9 10
Fig. 12: Terminal strip sensors: Level detec-
tion connection
6.5.9 High water alarm connection
Installation and operating instructions • Wilo-Control MS-L • Ed.02/2022-05
Connect one thermal motor monitoring device with bimetallic strips per pump. Do not con-
nect a PTC sensor!
Insert the connection cables laid by the customer through the threaded cable glands and se-
cure. Connect the wires to the terminal strip according to the connection diagram.
Switchgear
Control MS-L1...
Control MS-L2...
NOTICE! If a winding monitor is connected, remove the converter bridge installed at the
factory!
HW
9 10
Control MS-L.../MS-L...-O
Connect float switch for the level detection. Level detection with a level sensor or electrodes
is not possible!
Control MS-L...-LS
A rod float sensor is used for the level detection. The sensor is installed in the lifting unit at
the factory. Level detection with float switches or electrodes is not possible!
Insert the connection cables laid by the customer through the threaded cable glands and se-
cure. Connect the wires to the terminal strip according to the connection diagram.
Switchgear
Control MS-L1.../MS-L1...-O
HW
Control MS-L1...-LS
Control MS-L2.../MS-L2...-O
9 10 Control MS-L2...-LS
Pump 1
Terminal 1/2
Terminal 1/2
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
Base load (GL)
Terminal 3/4
−
Terminal 5/6
−
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
Pump 2
Terminal 3/4
Peak load (SL) Sensor
− −
− Terminal 5/6
Terminal 7/8 −
− Terminal 9/10
en
23