16
Control unit MGCplus
Operation modes
3.3 Special operating modes
Operating mode Description
Boot-up The control unit boots up, initialises all hardware components and
prepares to switch the drives on to perform homing.
Wait for homing This operating mode is only relevant if the pedestrian gate is con-
trolled via the API.
Perform homing The wings are moved slowly in the direction of side 2, then in the
direction of side 1 and then to the "Closed" position. The homing
serves to exclude a mechanical defect and to find the position
"Closed".
Critical error An unrecoverable error was detected, e.g. a defective motor drive,
I/O extension, etc. The control unit of the pedestrian gate must be
reset. If the critical error continues to appear, a service technician is
required.
Emergency mode If an input is set with the "Emergency open" function or if an input
is no longer set with the "| Emergency open" function, the control
unit switches to emergency mode. The wings are opened and then
powered down.
As soon as the input is no longer set with the "Emergency open"
function or if the input is again set with the "| Emergency open"
function, the behaviour of the control unit depends on the setting
of the "Emergency options" parameter:
› Option "Auto recovery": The control unit automatically switches
to normal mode.
› Option "None": A reset is required for the control unit to switch
to normal mode.
Parameter "Emergency options": ä Page 42, "Emergency op-
tions".
Reset: ä Page 69, chapter 7.4.
Table 7: Special operating modes
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