Operating Instructions
581E,5811_07
25
Relay 3 = Display “free passage, left” – clamps X20 – X21 - X 22
With free passage in left direction a permanent signal is given on this output.
This output can also be used to block an impulse generator for the right
passage direction while left passage is free.
Relay 4 = Display „free passage, right“ - clamps X23 - X24 - X25
With free passage in right direction a permanent signal is given on this output.
This output can also be used to block an impulse generator for the left
passage direction while right passage is free.
Relay 5 = Error - / alarm output – clamps - X26 – X27
If certain errors occur, there will be a permanent signal given through this
output. This signal will be given until the problem has been solved.
Relay 6 = Resource output
For future extensions or special programmes (Not applicable for the first
series)
9.4 Monitoring function
Monitoring function – micro controller
While the gate is in operation, the microcontroller is monitored by watchdog.
If the device is not triggered regularly by the microcontroller, the device will
perform a hardware reset (watchdog).
Checksum polling
The flash eprom of the microcontroller is read periodically during operation of
the turnstile and a checksum polling is carried out.
Should the case arise that single bits change due to external impact, the
control unit will switch to a safe operation if this is still possible.
In this case the alarm relay will be switched off (inverted / normally closed
contact) and the LED for alarm will be switched on.
Cycle counter
The micro controller counts the number of operation cycles (number of
passages) and stores it in the internal memory. Consequently it is possible to
proof operation time of the control unit. (e.g. in case of warranty claims)
The customer cannot reset the cycle counter.
No passage counter
If the controller registers a series of 10 opening pulses without following
passage, the alarm relay will be activated.
After a valid passage, the alarm relay will be reset.
