51
Anti-Cycle Timer
The ANTI-CYCLE TIMER is used to avoid repeated start attempts within a user programmable period of
time. The Anti-Cycle timer is started with the motor and must completely count down before the motor
can be started again. The duration of the Anti-Cycle timer can be adjusted from the Miscellaneous
Controls.
Power Fail Restart
The operator can define a POWER FAIL RESTART time from the miscellaneous controls screen. If the
Viltech is reset manually or due to a loss of power the down time is calculated and compared to this
setpoint. If power was off longer than the power fail restart time a failure is reported. If the power loss
was less than the setpoint no failure is reported and the compressor remains on-line and is allowed to
automatically restart if required.
Process Temperature Control (Option)
When the PROCESS TEMPERATURE option is enabled, the RECIP compressor capacity is adjusted to
maintain the outlet temperature of a product or process instead of suction pressure
(e.g. chiller outlet temperature control). The control strategy is documented in the Capacity Control
section above.
Two Stage Configuration (Option)
In a TWO STAGE CONFIGURATION, an intermediate pressure and temperature sensor are monitored. High Failure,
High Alarm, Low Alarm and Low Failure setpoints are provided for each.
To Next Page
Loading...
