Controls/ Function
Once start-up is complete the vacuum system need only to be
switched on, in order to perform its job.
No further control is necessary during normal operation.
The unit is designed for continuous operation.
The vacuum system is controlled according to the programm flow
chart.
WARNING
Insuficient operator familiarity with indication and control
elements may result in damage to the vacuum system!
Operators must be familiar with the controls. This will ensure smooth
operation.
Equipment connections (with options)
The information concerning the use of the Busch PLC and the Busch
LCD can be found in the Operation and Maintenance Instructions
(Art-No. 0870758077).
Connection of the lines/ pipes
l
Connect the intake lines
l
Connect the discharge lines
l
Make sure that all caps, safeguards and similar covers are mounted
l
Make sure that the inlet and outlet for the cooling air are not
covered or closed and that the flow of cooling air is not impaired in
any way
Filling in cooling liquid
The COBRA DS vacuum systems are generally dispatched with
cooling liquid in the vacuum pump (It depends on the way of
shipping). Before vacuum system first startup, control the cooling
liquid level. In the event of absence of this lubricant, please carry out
the filling (see the chapter “Cooling liquid types” for information on
the recommended cooling liquids).
CAUTION
Do not run the vacuum system without cooling liquid!
l
Prepare the quantity of cooling liquid specified in the table
“Cooling liquid quantity”
NOTE
: The quantity of cooling liquid specified in the installation hand-
book is of informative nature only. Respect the procedure of filling the
cooling liquid.
l
Open/ unscrew filler cap (CLF) of cooling liquid on cylinder upper
plate
l
Open/ unscrew purge cap (CLV) on cylinder upper plate and purge
cap (CLV) on cylinder endplate B-side
l
Fill in by filler hole until cooling liquid flows by purge cap on cylin-
der endplate B-side (gearings)
l
Stop filling in cooling liquid
l
Close the purge cap on cylinder endplate B-side
l
Fill in again by filler hole until cooling liquid flows by purge cap of
cylinder upper plate
l
Close the purge cap of cylinder upper plate
l
Screw on the filler cap for the cooling liquid again
l
If liquid has run on to the outside surfaces of the vacuum system,
wipe it off
l
Start the vacuum system
If the intake line is equipped with a shut-off device:
u
Close the shut-off device
If the intake line is not equipped with a shut-off device:
u
Place a rubber plate on the intake flange
l
Let the vacuum system run for a few minutes
l
Stop the vacuum system and wait a few minutes
l
Unscrew purge cap on cylinder upper plate
l
Control that cooling liquid level is just under cylinder upper plate
In case cooling liquid level is below required level:
u
Fill in more cooling liquid
If the intake line is equipped with a shut-off device:
u
Open the shut-off device
If the intake line is not equipped with a shut-off device:
l
Remove the rubber plate from the intake flange and connect the
intake line to the intake flange
Checking the direct cooling
The flow of the cooling water is checked by the flow switch FS 2. The
flowmeter must be connected in such a way that switching-on leads to
an alarm and stopping of the vacuum system when the flow drops be-
low 28 l/min.
Checking the nitrogen
The flow of the cooling water is checked by the flowmeter FME. The
flowmeter must be connected in such a way that switching-on leads to
an alarm. The alarm limit can be adjusted depending on the type of
process.
COBRA DS 8163 A
Installation and start-up
0870772605
Page 19
①
②
③
④
⑤
⑥
⑦
⑧
1
LCD serial wiring (RJ45), LCD 1
2
LCD serial wiring (RJ45), LCD 2
3
PC serial wiring (9 poles) (option)
4
USB connection
5
Customer network, Communication modbus RTU RS 232
6
Ethernet network connection (Busch Monitoring System)
(option)
7
Interface connection (50 poles) (option)
8
PID interface (9 poles) (option)
Summary of Contents for COBRA DS 8163 A
Page 34: ......
