Leading Particulars; General Description; Main Functions; Control Panel - Atlas Copco CD65 Bedienungsanleitung

LEADING PARTICULARS

General description

The CD air dryers are built to remove moisture from compressed air
for industrial purposes. All units are designed for indoor use.
An overview of the main parts of the dryer units is given in figure 1A
(for CD65 up to CD280) and in figure 1B (for CD390 and CD520):
1 .....Tower A
2 .....Tower B
3 .....3-way valve
4 .....Non-return valves
5 .....Solenoid valves
6 .....Elektronikon® controller
7 .....Silencers
8 .....Cubicle
9 .....Display

Main functions

Automatic control of the dryer
The regulator maintains
programmable limits automatically by defining the switching time. A
number of programmable settings, are taken into account.
!
A number of time-based automatic start/stop commands
may be programmed (See page 7). Take into account that a
start command will be executed (if programmed and
activated), even after manually stopping the dryer.
Protecting the dryer
Shut-down warning
If the dryer inlet temperature exceeds a programmed value, this will
be indicated to warn the operator.
Service warning
A number of service operations are grouped in plans (called Service
plans A, B and C). Each Service plan has a programmed time interval.
If a time interval is exceeded, a message will appear on display to
warn the operator to carry out the service actions belonging to that
plan.
Warning
A warning message also appears if:
– The pressure dewpoint exceeds a programmed value.
– The pressure status in the dryer vessels is not correct.
Automatic restart after voltage failure
For dryers leaving the factory, this function is made inactive. If
desired, the function can be activated. Consult Atlas Copco.
2904 0177 04
10... Pressure dewpoint sensor
11 ... Air inlet
12... Air outlet
13... Pneumatic actuator
14... Pressure transmitters
15... Pneumatic valves
16... Control air valve
17... Purge line
the pressure dewpoint

Control panel

The control panel of the Elektronikon II regulator is shown in figure 2:
1 .... Stop button
Push button to stop the dryer. LED (8) goes out.
2 .... Start button
Push button to start the dryer. LED (8) lights up indicating that the
regulator is operative (in automatic operation).
3 .... Display
Indicates messages concerning the dryer operating condition, a
service need or a fault.
4 .... Scroll keys
Keys to scroll through the display.
5 .... Tabulator key
Key to select the parameter indicated by a horizontal arrow. Only
the parameters followed by an arrow pointing to the right are
accessible for modifying.
6 .... Voltage on LED
Indicates that the voltage is switched on.
7 .... General alarm LED
Is alight if a warning, service warning or shut-down warning
condition exists or if a sensor is out of order.
between
Blinks in case of an emergency stop.
8 .... Automatic operation LED
Indicates that the regulator is automatically controlling the dryer.
9 .... Function keys
Keys to control and program the dryer.
10 .. Pictograph - Alarm
11... Pictograph - Automatic operation
12 .. Pictograph - Voltage on
Function keys
The keys are used:
– To call up or to program settings.
– To reset service message or an emergency stop.
– To have access to all data collected by the regulator.
The functions of the keys vary depending on the displayed menu. The
actual function is abbreviated and indicated on the bottom line of the
display just above the relevant key. The most common abbreviations
are listed below.
Abbreviation Designation Function
Add
Back
Canc
Del
Help
Lim
Main
Menu
Menu
I
NSTRUCTION MANUAL
Add To add dryer start/stop commands (day/hour)
Back To return to a previously shown option or menu
Cancel To cancel a programmed setting when
programming parameters
Delete To delete dryer start/stop commands
Help To find the Atlas Copco internet address
Limits To show limits for a programmable setting
Main To return from a menu to the main screen
Menu Starting from the main screen: to have access to
submenus
Menu Starting from a submenu, to return to the previous
menu
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