Every movement command causes the full action that has been selected to be performed (open gate,
close gate etc.). Every action is stopped immediately by a stop command or a signal from the safety
facilities.
Activating the anti-crushing safety protection devices causes the gate to immediately move in the
opposite direction. If a photocell is interrupted while the gate is closing, this will cause the gate to be
opened as far as the point where the closing movement started (OPEN or PARTLY OPEN).
A movement command for the opposite direction will gradually decelerate the gate and then cause it
to move in opposite direction.
Automatic mode if the gate has not been installed fully yet:
If the gate has not been fully installed yet, or if motor drive programming has not been
completed yet, the motor drive will work in a special safety mode (e.g.: the end positions of
the gate have not been defined yet). The gate will then only run at dead man's mode speed.
Only after the OPEN and CLOSED end positions have been set and after a measuring run at dead
man's mode speed has been performed, will the system switch over to the automatic mode speed
(depending on the type, HMD230/IGD, this will be 0.25 m/s or 0.5 m/s).
If the power supply to the drive has been interrupted, the gate will also only run at dead
man's mode speed until the first time when an end position has been reached.
8.2.3 EMERGENCY OPERATION
The gate motor drive can switch over automatically from automatic mode to emergency operation.
This automatic switch-over can only take place after a "Function emergency situation" input signal
which is generated by a fire emergency room. Only the one movement (OPEN or CLOSED, depending
on programming) that is requested will be performed at dead man's mode speed in this operating
mode. The safety facilities are also activated during this movement. The movement can be
interrupted by pressing and holding the STOP key or by a safety device being triggered. When this
interruption no longer applies, the gate will immediately continue to move. At the end of the
emergency movement and after the signal ("Function emergency situation") has been reset, the
software of the motor drive will initiate a restart to enable safe switch-over to automatic mode.
Any static active OPEN or PARTLY OPEN signals are ignored by the motor drive in this operating mode.
Just as the command triggered by an OPEN or CLOSE command key being pressed cannot be
performed when a program is started, a static active "Emergency situation" input signal will also not
be carried out when switching on the motor drive.
8.3 AUTOMATICALLY CHANGING OPERATING MODES
The gate motor drive can switch over from automatic mode to emergency operation if it has been
programmed to allow this and the HMD230/IGD recognizes a corresponding "emergency situation"
signal from a fire emergency room. This operating mode will then be performed until the motor drive
is restarted.
If electronic safety facilities on the gate are out of operation (e.g. faulty photocell), the motor drive
can automatically switch over from automatic mode to dead man's operation. This automatic switch-
over will take place only for the individual motor movement that has been started and only if the key
provided for dead man's operation is pressed. After this, the motor drive will switch over to automatic
mode again, but if a new fault occurs or if the fault is not remedied, the system can switch over to
dead man's operation again for the next movement.
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