Wilo Control EC-Booster Installation And Operating Instructions Manual page 20

en
x
Fig. 18: Connection overview symbol
6.5.9 Connection to the frequency con-
verter error messages
x
Fig. 19: Connection overview symbol
6.5.10 Pressure sensor connection
4-20 mA
In
p
Fig. 20: Connection overview symbol
20
NOTICE! Connection is only possible using the Wilo-Control EC-B ... switchgear!
One thermal motor monitoring device with bimetallic sensors can be connected per pump.
Do not connect PTC or Pt100 sensors!
The terminals are fitted with a converter bridge at the factory.
Insert the connection cables provided by the customer through the threaded cable glands
and secure. Connect the wires to the terminal strip according to the connection diagram. Use
the terminal number shown in the connection overview on the cover. The number shown
in location "x" on the symbol indicates which pump it refers to:
• 1 = pump 1
• 2 = pump 2
• 3 = pump 3
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
• Do not apply external voltage.
NOTICE! Connection is only possible using the Wilo-Control ECe-B ... switchgear!
One external error message of the frequency converter can be connected per pump. The fre-
quency converter output needs to act as a normally closed contact!
Insert the connection cable laid by the customer through the threaded cable glands and se-
cure. Connect the wires to the terminal strip according to the connection diagram. Use the
terminal number shown in the connection overview on the cover. The number shown in
location "x" on the symbol indicates which pump it refers to:
• 1 = pump 1
• 2 = pump 2
• 3 = pump 3
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
• Do not apply external voltage.
Pressure detection is performed using an analogue pressure sensor (4 to 20 mA). NO-
TICE! Do not attach an active pressure sensor.
Insert the connection cables provided by the customer through the threaded cable glands
and secure. Connect the wires to the terminal strip according to the connection diagram. Use
the terminal number shown in the connection overview on the cover.
NOTICE! Use shielded connection cables! Apply the shielding on one side!
NOTICE! Observe the correct polarity of the pressure sensor!
Installation and operating instructions • Wilo-Control EC/ECe-Booster • Ed.02/2023-08