Wilo Yonos GIGA2.0-I Einbau- Und Betriebsanleitung Seite 178

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Control input function
Not used
External OFF
Fig. 66: Digital input menu function
Control input
Control input function
Twin-head pump ext.
OFF function
Fig. 67: Digital input menu
Twin-head pump
ext. OFF function
System mode
Single mode
Combined mode
Fig. 68: Selectable modes for ext. OFF with
twin-head pump
178
Selection option
Not used
External OFF
Table 26: Control input function DI1
Procedure with EXT. OFF for twin-head pumps
The function EXT. OFF always behaves as follows:
• EXT. OFF active: contact is open, pump is stopped (OFF).
• EXT. OFF inactive: contact is closed, pump runs in normal operation (ON).
The twin-head pump consists of two partners:
• Main pump: Twin-head pump partner with connected differential pressure sensor
• Partner pump: Twin-head pump partner without connected differential pressure sensor
The configuration of the control inputs has three possible modes for EXT. OFF which can in-
fluence the behaviour of the two twin-head pump partners.
The possible behaviours are described in the following tables.
System mode
The control input DI1 is equipped in the factory with a converter bridge and the function
"EXT. OFF" is active.
The control input on the main pump switches both twin-head pump partners.
The control input of the partner pump is ignored and has no meaning regardless of its con-
figuration. If the main pump fails or the twin-head pump connection is disconnected, the
partner pump is also stopped.
Main pump
States EXT. OFF Behaviour of
the pump
motor
1 Active Off
2 Not act- On
ive
3 Active Off
4 Not act- On
ive
Table 27: System mode
Single mode
The control input DI1 is equipped in the factory with a converter bridge and the function
"EXT. OFF" is active. Each of the two pumps is individually switched by its own control in-
put. If the main pump fails or the twin-head pump connection is disconnected, the control
input of the partner pump is evaluated.
Installation and operating instructions • Wilo-Yonos GIGA2.0-I/-D • Ed.01/2023-03
Digital input function
The control input does not have a function.
Contact open: Pump is switched off.
Factory setting:
Contact closed: Pump is switched on.
Partner pump
Display text EXT. OFF Behaviour of
for active the pump
influences motor
OFF Active Off
Override OFF
(DI1)
OK; normal Active On
operation
OFF Not act- Off
Override OFF ive
(DI1)
OK; normal Not act- On
operation ive
Display text
for active
influences
OFF
Override OFF
(DI1)
OK; normal
operation
OFF
Override OFF
(DI1)
OK; normal
operation