BeaconMedaes Z MED Medical Air System, Инструкции по установке, эксплуатации и обслуживанию

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A-25
Z MED Medical Air System
4107 9022 67.00
A.7 Integrating Compressors
In general, the Elektronikon control system has
the following functions:
• Controlling the compressors
• Protecting the compressors
• Monitoring components subject to service
• Automatic restart after voltage failure
A.7.1 Compressor Control
A.7.1.1 Controlling the Compressor
The CCS maintains the net pressure between
programmable limits by automatically loading
and unloading the compressor depending on
the air consumption. The regulator takes into
account a number of programmable settings,
such as:
• The unload pressure
• The loading pressure
• The minimum stop time
• The maximum number of motor starts
The CCS stops the compressor whenever pos-
sible (when the expected unloading period
exceeds a programmed value) to reduce the
power consumption and restarts it automati-
cally when the net pressure decreases. In case
the expected unloading period is below a pro-
grammed value, the CCS keeps the compressor
running to prevent too-short standstill periods.
When the compressor has stopped automati-
cally and the net pressure decreases, the CCS
will start the compressor before the net pres-
sure has dropped to the loading pressure to
prevent the net pressure from falling under the
programmed minimum level.
When stopping the compressor manually, the
regulator will unload the compressor for a pro-
grammed time and then stop the compressor.
A.7.1.2 Protecting the Compressor
Several temperature and pressure sensors are
provided on the compressor. If one of these
measurements exceeds the programmed shut-
down level, the compressor will be stopped.
This will be indicated on the control display.
A.7.1.3 Shut-Down Warning
If the CCS detects a temperature or pressure
just below the programmed shut-down level,
this will be indicated on the control panel to
warn the operator before the shut-down level
is reached. The message disappears as soon as
the warning condition disappears.
A.7.1.4 Service Warning
A number of service operations are grouped in
plans (called service plan A, B, C…). Each service
plan has a programmed time interval. If a time
interval is exceeded, a message will appear on
the display to warn the operator to carry out
the service actions belonging to that plan.
A.7.1.5 Automatic Restart After Volt-
age Failure
The CCS has a built in function to automatically
restart the compressor if the voltage is restored
after voltage failure. For compressors leaving
the factory, this function is made inactive.
This function should be made active by a
BeaconMedæs service representative at start-
up.
The power recovery time (the period within
which the voltage must be restored to have
an automatic restart) can be set between 15
and 3600 seconds or to infinite. If the power
recovery time is set to infinite, the compressor
will always restart after a voltage failure, no
WARNING!
If ARAVF feature is activated and the
module was in automatic operation
mode, the compressor will automatically
restart.
Appendix A - Central Control System