Wilo Control EC-WP Series Installation And Operating Instructions Manual page 16

en
!
A B
Fig. 10: Electrode connection types
6.5.7 "Extern OFF" connection: Remote
deactivation
16
High water level
The high water level can also be monitored by the following sensors:
• Float switch
• Electrode
Connection is protected against reverse polarity!
The input acts as a normally open contact (NO):
• Float switch open or electrode non-immersed: no high water
• Float switch shut or electrode immersed: High water alarm
Sensor connection
Insert the connection cable laid by the customer through the threaded cable glands and se-
cure it. Connect the wires to the terminal strip according to the connection diagram. For
more information on the control modes and how they work, as well as the individual ter-
minal numbers, please refer to the relevant description:
• Control modes for filling
–
"Filling" control mode: 1x well, 1x pump, 1x float switch or electrode [" 20]
–
"Filling" control mode: 1x well, 1x pump, 2x float switches or electrodes [" 21]
–
"Filling" control mode: 1x well, 2x pumps, 2x float switches or electrodes [" 22]
–
"Filling" control mode: 1x well, 2x pumps, 3 float switches or electrodes [" 23]
–
"Filling" control mode: 1x well, 2x pumps, 4x float switches or electrodes [" 24]
–
"Filling" control mode: 2x wells, 2x pumps, 2x float switches or electrodes [" 25]
–
"Filling" control mode: 2x wells, 2x pumps, 4x float switches or electrodes [" 26]
• Control modes for draining
–
"Drain" control mode: 1x well, 1x pump, 1x float switch or electrode [" 27]
–
"Drain" control mode: 1x well, 1x pump, 2x float switches or electrodes [" 28]
–
"Drain" control mode: 1x well, 2x pumps, 2x float switches or electrodes [" 29]
–
"Drain" control mode: 1x well, 2x pumps, 3 float switches or electrodes [" 30]
–
"Drain" control mode: 1x well, 2x pumps, 4x float switches or electrodes [" 31]
–
"Drain" control mode: 2x wells, 2x pumps, 2x float switches or electrodes [" 32]
–
"Drain" control mode: 2x wells, 2x pumps, 4x float switches or electrodes [" 33]
Use of electrodes
Electrodes can be connected in the following ways:
A 1x electrode with reference earth on the tank
!
B 2x electrodes with reference earth via the electrode
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
• Do not apply external voltage (connect potential-free).
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
• Do not apply external voltage (connect potential-free).
Installation and operating instructions • Wilo-Control EC-WP • Ed.01/2024-08