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HE 5750 Operating Instructions
#371627 Version 1.1
The communication between the switch unit and the HE 5750 Master controller necessary for
the switching process, is done via a digital input and output per HE 5750 Master controller.
D-Out Switch unit => D-In HE 5750 (M1/M2)
0=Active, 1=Standby
D-Out HE 5750 => D-In Switch unit
A rising edge (0=>1) of the active HE 5750 Master
controller prompts the switch unit to switch to the
second HE 5750 Master controller. Provided that this
Master controller was “detected” by the switch unit.
D-Out (24 VDC) for signalling (luminous indicator)
Stat 1 lights up permanently
, if the HE 5750 Master
controller 1 is activated.
Stat 1 flashes in case of error
(e.g. if no controller
unit 1 is available) and the ERR-LED of the HE 5750
Master controller 1 lights up as well.
Stat 2 lights up permanently
, if the HE 5750 Master
controller 2 is activated.
Stat 2 flashes in case of error
(e.g. if no controller
unit 2 is available) and the ERR-LED of the HE 5750
Master controller 2 lights up as well.
Stat 1 and Stat 2 flash alternately
, if the connected
HE 5750 Master controllers use different software
versions.