Wilo Control MS-L Series 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 detection
connection
Installation and operating instructions Wilo-Control MS-L
Installation
Connect one thermal motor monitoring device with bimetallic strips per pump. Do not
connect a PTC sensor!
Insert the connection cables laid by the customer through the threaded cable glands
and secure. Connect the wires to the terminal strip according to the connection dia-
gram.
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
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
Control MS-L.../MS-L...-O
Connect float switch for the level detection. Level detection with a level sensor or elec-
trodes 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 secure. Connect the wires to the terminal strip according to the connection dia-
gram.
Switchgear
Control MS-L1.../MS-L1...-O Terminal 3/4
HW
Control MS-L1...-LS
Control MS-L2.../MS-L2...-O Terminal 5/6
9 10
Control MS-L2...-LS
Pump 1 Pump 2
Terminal 1/2
Terminal 1/2 Terminal 3/4
Base load (GL) Peak load (SL)
−
− −
Terminal 7/8
− −
en
Sensor
−
Terminal 5/6
−
Terminal 9/10
23