Application And Function Of The Digital Control Inputs Di1 And Di2 - Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service

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13.4 Application and function of the
digital control inputs DI1 and DI2
216
Communication interfaces: Setting and function
SSM/SBM relay
Forced control
Normal
Forced active
Forced inactive
Table 37: Selection option SSM/SBM relay forced control
With the "Forced active" setting, the relay is permanently activated so that a warning/
operational indicator (lights) is displayed/signalled continuously, for example.
With the "Forced inactive" setting, the relay is permanently without signal so that there
is no confirmation of a warning/operational signal.
The pump can be controlled through external potential-free contacts at the digital in-
puts DI1 and DI2. The pump can be
ƒ
switched on or switched off,
ƒ
controlled to maximum or minimum speed,
ƒ
set manually into an operating mode,
ƒ
protected against changes of settings through control or remote control or
ƒ
switched between heating and cooling.
For a detailed description of the OFF, MAX, MIN and MANUAL functions, see "Settings
menu – Manual operation" [} 208] section.
In the "Settings" menu , select
1. "External interfaces"
2. select "Function control input DI1" or "Function control input DI2".
Possible settings:
Selection option
Not used
External OFF
External MAX
External MIN
1)
External MANUAL
2)
External key lock
Help text
SSM Depending on the SSM configuration, fault
and warnings influence the SSM relay switching
status.
SBM Depending on the SBM configuration, the
pump status influences the SBM relay switching
status.
SSM/SBM relay switching status is forced ACTIVE.
CAUTION:
SSM/SBM does not display the pump status!
SSM/SBM relay switching status is forced INACT-
IVE.
CAUTION:
SSM/SBM does not display the pump status!
Function control input DI1 or DI2
The control input does not have a function.
Contact open: pump is switched off.
Contact closed: pump is switched on.
Contact open: pump is running in the mode set on
the pump.
Contact closed: pump is running with maximum
speed.
Contact open: pump is running in the mode set on
the pump.
Contact closed: pump is running with minimum
speed.
Contact open: pump is running in the mode set
on the pump or in mode requested via bus com-
munication.
Contact closed: pump is set to MANUAL.
Contact open: key lock is deactivated.
Contact closed: key lock is activated.
WILO SE 2021-12