Section III - Airlogic Graphic Controller
• Monitoring components subject to service
• Automatic restart after voltage failure (made inactive)
Automatic control of the vacuum pump operation
The controller maintains the pressure within programmable limits by automatically
adapting the motor speed. A number of programmable settings, e.g. the setpoint,
the minimum stop time and the maximum number of motor starts and several other
parameters are hereby taken into account.
The controller stops the vacuum pump whenever possible to reduce the power
consumption and restarts it automatically when the pressure decreases. For High Water
Handling Capability pumps, the pump is equipped with a purge cycle which prevents
and removes condensed water in the sealing oil.
WARNING!
A number of time based automatic start/stop command may be programmed. Take
into account that a start command will be executed (if programmed and activated),
even after manually stopping the vacuum pump.
Protecting the Vacuum pump
Shut-down
Several sensors are provided on the vacuum pump. If one of the measurement succeeds
the programmed shut down level, the vacuum pump will be stopped. This will be
indicated on display(1) and general alarm LED(4)will blink.
Remedy the trouble and reset the message. See also the Inputs menu.
WARNING!
Before remedying, consult the Safety precautions.
Shut-down warning
A shut-down warning level is a programmable level below the shut-down level.
If one of the measurement succeeds the programmed shut-down warning level, a
message will appear on display(1) and general alarm LED(4) will light up, to warn the
operator that the shut-down warning level is exceeded.
The message disappears as soon as the warning condition disappears.
Warning
A warning message will appear if:
•
Element outlet temperature is too high
•
Pump discharge pressure is too high
•
Purge cycle was not successful (temperature not reached within requested time)
16
Quincy Vacuum Pump-QSV Series
