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Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09
23
Fig. 19:
Connection overview symbol
A run signal is issued for all pumps (SBM) via a separate output:
•
Contact type: potential-free changeover contact
•
Contact load:
–
Minimum: 12 V=, 10 mA
–
Maximum: 250 V~, 1 A
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.
Use the
terminal number shown in the connection overview on the cover.
6.5.13
Collective fault signal connection
(SSM)
DANGER
Risk of fatal injury due to an external electrical power supply!
The external electrical power supply is also present at the terminals when
the main switch is switched off! There is a risk of fatal injury!
• Disconnect external power supply before any work!
• Electrical work must be carried out by a qualified electrician!
• Observe local regulations!
Fig. 20:
Connection overview symbol
A fault message is output for all pumps (SSM) via a separate output:
•
Contact type: potential-free changeover contact
•
Contact load:
–
Minimum: 12 V=, 10 mA
–
Maximum: 250 V~ 1 A
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.
Use the
terminal number shown in the connection overview on the cover.
6.5.14
Individual run signal (EBM) connec-
tion
DANGER
Risk of fatal injury due to an external electrical power supply!
The external electrical power supply is also present at the terminals when
the main switch is switched off! There is a risk of fatal injury!
• Disconnect external power supply before any work!
• Electrical work must be carried out by a qualified electrician!
• Observe local regulations!
x
Fig. 21:
Connection overview symbol
A run signal is output for each pump (EBM) via a separate output:
•
Contact type: potential-free NO contact
•
Contact load:
–
Minimum: 12 V=, 10 mA
–
Maximum: 250 V~, 1 A
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.
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
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