4B Watchdog Super Elite, Руководство по эксплуатации

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• 14.5.F NUMBER OF STARTS / MINUTE - This function is used to prevent damage to the motor and
the motor start circuitry by limiting the number of times in a minute the system can be started. This
setting can range from 1 to 10, the default is 3.
When the Watchdog is started and a shutdown fault occurs, a jog delay is introduced. For example,
if the “Number of Starts / Minute” is set to 4, then a delay of 15 seconds before restarting would be
introduced (60 seconds / 4 starts per minutes = 15 seconds between starts).
The jog countdown is shown under SYSTEM STATUS on the Watchdog’s main screen.
• 14.5.G START UP DELAY [S] - The delay in seconds before the system starts to fully monitor the
system for possible alarm conditions. This setting can range from 1 to 15 seconds, the default is 5.
A countdown is shown on the status screen.
This delay allows elevator or conveyor belts to start-up and achieve a correct running state before
the general alarm conditions are monitored. The exceptions to this are acceleration monitoring,
bearing temperature and plug condition.
If acceleration monitoring is enabled (a value other than 0), and the acceleration speed is outside of
the permitted parameters, the Watchdog will stop the elevator or conveyor in accordance with the
acceleration monitoring level.
• 14.5.H UNDERSPEED ENABLE - Turns ON (default) and OFF underspeed monitoring. The OFF
option is only displayed when the FACTORY SETTINGS menu has been accessed. If turned OFF,
underspeed will not be monitored and settings 14.5.I - 14.5.L are disabled and not displayed.
• 14.5.I UNDERSPEED ALARM [%] - The percentage of underspeed at which the system will cause
an alarm. The percentage can be set from 1% to 10%, the default is 10%.
If the measured speed falls below the calibrated speed by this preset percentage, the Watchdog
will generate an underspeed alarm condition. If this alarm persists longer than the underspeed stop
delay, then the Watchdog will stop the elevator or conveyor.
• 14.5.J SEVERE UNDERSPEED [%] - The percentage of severe underspeed at which the system
will shut down. The percentage can be set from 1% to 20%, the default is 20%.
If the measured speed falls below the calibrated speed by this preset percentage, the Watchdog will
generate a severe underspeed condition and stop the elevator or conveyor.
• 14.5.K UNDERSPEED ALARM DELAY [S] - The delay in seconds before the system alarms after
a sensor trips. The delay can be set from 0 to 10 seconds, the default is 1. Configuring the delay
above zero can help prevent nuisance alarms.
When a sensors trips, a cumulative alarm delay counter starts to count down. If the alarm condition
ends before the delay counter reaches zero, the delay counter starts to count back up to the original
alarm delay value and the Watchdog will not alarm.
If the system reaches the UNDERSPEED ALARM DELAY time, the alarm relay is de-energized, the
ALARM LED on the Watchdog lights up amber, and a warning showing the source of the alarm is
displayed in red on the main LCD screen. The alarm event is also logged in the ALARM LOG.
• 14.5.L UNDERSPEED STOP DELAY [S] - The delay in seconds before the system shuts down. The
delay can be set from 0 to 60 seconds, the default is 60.
A cumulative stop delay counter starts to count down simultaneously with the alarm delay. If the
alarm condition ends before the delay counter reaches zero, the counter starts to count back up to
the original stop delay value and the Watchdog will not stop the system.