Boge FOCUS User manual

FOCUS compressor
control for
screw compressors
Operating
instructions

Table of contents
BOGE FOCUS compressor control for screw compressors
Inhalt.pm6.5 - USA
Page I
Operating instructions
FOCUS compressor control
for screw compressors
As of: 08/2009
No. 596.0898.18
Nominal price: €5,00
BOGE KOMPRESSOREN
Postfach 10 0713
D-33507 Bielefeld
Germany
Otto-Boge-Straße 1–7
D-33739 Bielefeld
Phone: ++49 / 52 06 / 6 01-0
Fax: ++49 / 52 06 / 6 01-200
Mail: [e-mail]
Net: www.boge.com

Page II BOGE FOCUS compressor control for screw compressors
Inhalt.pm6.5 - USA
Table of contents

Table of contents
BOGE FOCUS compressor control for screw compressors
Inhalt.pm6.5 - USA
Page III
Index
1.1 The BOGE control concept ......................................................... 1.1
Installation ...................................................................................... 1.1
Control unit .....................................................................................1.1
1.2 Operation ...................................................................................... 1.3
Switch on the control ......................................................................1.3
Switch on the compressor .............................................................. 1.3
Ready ............................................................................................. 1.3
Run-up phase................................................................................. 1.4
Load operation ............................................................................... 1.4
Idling ..............................................................................................1.4
Switch off the compressor .............................................................. 1.4
Maintenance................................................................................... 1.4
1.3 Display information ......................................................................1.5
Main display ................................................................................... 1.5
Dryer ..............................................................................................1.6
Servicing ........................................................................................1.6
Operating times .............................................................................. 1.6
Info # 1 ........................................................................................... 1.7
Info # 2 ........................................................................................... 1.7
Date / Time .....................................................................................1.8
Display of version ........................................................................... 1.8
1.4 Setting ........................................................................................... 1.9
Entering of codes in general........................................................... 1.9
Parameter list ................................................................................. 1.9
Set parameters............................................................................. 1.10
Parameters ................................................................................... 1.10
1.5 Grouped parameters / parameter management ....................... 1.15
Servicing interval .......................................................................... 1.15
Parameter factory setting ............................................................. 1.15
Base load switch with additional compressors ............................. 1.15
Timer ............................................................................................ 1.16
1.6 Functions .................................................................................... 1.18
Motor switching limitation ............................................................. 1.18
Power failure cycle protection ....................................................... 1.18
Motor spinning time ...................................................................... 1.18
Star phase time control ................................................................ 1.18
Pressure range selection.............................................................. 1.18
Parameterization of frequency converter ...................................... 1.19
TAN test........................................................................................ 1.19
Part 1:
FOCUS

Page IV BOGE FOCUS compressor control for screw compressors
Inhalt.pm6.5 - USA
Table of contents
1.7 Warning message / Fault message ........................................... 1.20
Warning message ........................................................................ 1.20
Pre-acknowledgement.................................................................. 1.20
Acknowledgement of message 45 (Watchdog timer reset) .......... 1.20
Fault messages ............................................................................ 1.21
1.8 Data of external connections .................................................... 1.22
Basic module................................................................................ 1.22
Analogue output module .............................................................. 1.23
RS 485 module ............................................................................1.23
1.9 Fault messages .......................................................................... 1.24
List of fault messages................................................................... 1.24
1.10 Parameter overview.................................................................... 1.26

FOCUS.pm6.5 - USA
Page 1.1
FOCUS
BOGE FOCUS compressor control for screw compressors
The BOGE control concept1.1
FOCUS is a compressor control unit.
It is installed into the switch cabinet as part of the compressor and serves as
a compressor control device.
Prior to commissioning and before accomplishing any kind of maintenance
or servicing work please read the functional descriptions of both control and
compressor carefully. First and foremost observe the Safety notes in Chap-
ter 1 of the functional description of the compressor.
Power input
Terminals A1 and A2 for 24V AC/DC
Rating: 24V +/–10% 50/60Hz 15W
24V DC +/–10% 0,4A
An interruption of the power supply is effected by means of the mains dis-
connector of the compressor.
Modules
The basic equipment of the FOCUS consists of a basic module and a key-
pad/display unit (TAN).
Amongst others the following modules are optionally available:
– for frequency regulated compressors
– with a 4-20mA output for master controls, suitable for frequency regulated
compressors
– with a (second) RS485 interface for the connection of additional com-
pressors if the first interface is used otherwise
– for compressors with built-in dryers
Interconnection of the modules may only be completed using the provided
leads supplied with the equipment.
The display unit comprises a graphic display and 3 LEDs for an additional
illustration of the operating modes.
Installation
Control unit
Fig. 1.1: FOCUS operating panel
Display
Info-Taste
Enter-Taste
Störung
Warnung
Betrieb
Start
Stopp
Navigationstasten
Display
Info key
Navigation keys Enter key
Fault
Warning
Operation
Start
Stopp

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Page 1.2
FOCUS
BOGE FOCUS compressor control for screw compressors
The BOGE control concept1.1
  
  
  Navigation keys:
Navigation in the menu, scrolling the displays, scrolling of pages in the pa-
rameter display.
  
  
  Navigation keys:
Navigation in the menu, displays, dryer status, navigation in the the param-
eter display, setting of values.
Info key
Display of faults, warnings or maintenance messages, log book, quitting of
settings.
Enter key
Confirmation of inputs, selection of parameters, forced idling, setting of FC
( frequency converter ) parameters.
Off(0) key
Acknowledging when switching on the control, switching off the compressor,
switching off forced idling.
On(1) key
Switching on the compressor, forced idling.
zWarning/Maintenance (LED- orange)
Flashing: Pending warning; compressor is working – as yet.
Lit: Warning already acknowledged; compressor is working – as yet.
zFault ( LED- red)
Flashing: Upcoming fault, compressor is switched off.
Lit: Fault already acknowledged; compressor remains switched off and can-
not be restarted until the fault has been rectified.
zOperation (LED - green)
Flashing: Compressor in idling operation
Lit: Compressor is switched on.
Emergency-Stop pushbutton
The Emergency-Stop pushbutton interrupts the power supply for the contac-
tor coil. The control is still energized and generates a corresponding display.

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Page 1.3
FOCUS
BOGE FOCUS compressor control for screw compressors
Operation1.2
Prerequisite: The compressor must be electrically and pneumatically con-
nected, the power supply voltage must be turned on and the ball valves
and/or balanced disc stop valves between compressor and compressed air
receiver must be opened.
Having connected the compressor to the power supply and having switched
on the main switch, if applicable, the version display is shown (if neither Auto
Restart nor Remote control are parameterized) on which the name of the
control, the name of the manufacturer and the version number are shown.
First a parameter adjustment between basic module and TAN is performed
resp. and if applicable the registration of connected and not yet registered
additional modules. When this procedure has been finished the symbol for
the -key is flashing. Press -key to acknowledge and exit the display.
Otherwise – Auto restart and/or Remote-On-Off is activated:
After the recurrence of the power supply (net power failure) the display shows
a countdown, starting with the set Auto Restart time [s]. When this time is
expired the compressor switches to Ready status and starts automatically,
as soon as the prerequisites are fulfilled.
In case faults occur when the compressor is powered up they are displayed
immediately after the parameter reconciliation. The fault has to be acknowl-
edged to get to the main display (see also Warning message/Fault message).
At first OFF should be displayed in the bottom frame – the status display of
the compressor.
If EMERGENCY-OFF is displayed for the compressor status the Emergency-
Stop button has to be unlocked first.
If the status display shows Fault, the control is faulty and the malfunction has
to be corrected first (see also Warning message / Fault message).
Once this has been accomplished and the display shows the OFF status the
compressor can be put into the Ready status by pressing the -key.
A green LED signals that the compressor is ready for operation and the
pressure control is active – as long as no "Timer-Off" is due or an external
pressure control was parameterized.
If the compressor status Ready is displayed, the compressor is in the
"ready-for-operation" status. That means that the compressor automatically
(re)starts pressure and/or time controlled – as long as the conditions to do
so are fulfilled.
Operation
Switch on the
control
Switch on the
compressor
Ready

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Page 1.4
FOCUS
BOGE FOCUS compressor control for screw compressors
Operation1.2
The compressor motor is started and run up as already described under
'Ready'. The status display changes from Ready to Run-up.
To be able to do so the system pressure at the compressor must be de-
creased and the motor spinning time finished. Furthermore no limitation of
the motor switching cycles is allowed.
Otherwise in the motor status display the display Ready is shown!
For the star/delta contactor combination applies: First the star contactor and
20ms later the mains contactor is switched on. The display Run-up signals
the corresponding status of the control.
The Run-up resp. Star phase is finished after termination of the run-up time
by switching of the control into the Load run status.
When changing into the Load run the control switches on the delivery valve.
Compressors which are controlled accordingly now change into the delta
switching.
Frequency controlled machines display the percentage workload of the fre-
quency converter as a bar diagram.
If the set maximum pressure of the compressor is reached in the load run
the control switches to Idling. Accordingly Idling is shown in the status dis-
play. As a result an automatic system pressure decrease is effectuated.
If no after-running time is set (default: 0sek) the Idling phase is finished as
soon as the system pressure value drops below 1.3 bar (if applicable + para-
meterized max. booster pressure) – provided the automatic limitation of
start numbers allows it – and the compressor changes into the Ready status.
If the compressor is switched off via the maximum pressure and the net pres-
sure drops below the set minimum pressure (Pmin) during the idling time, the
compressor control automatically switches from Idling to Load run – and
the compressor continues with the output.
If the compressor is switched off however during a load run or idling phase
by means of the Off-key resp. Remote-Off it waits with a flashing green
LED in the idling phase (as described above) until the system pressure is
decreased before it changes into the Off status.
With the -key or via Remote-Off the compressor is switched off.
The pressure control is deactivated. If this happens when the motor stands
still or is just operating in the Run-up phase, Off is displayed at once in
the compressor status display and the green LED goes out. Otherwise an
idling phase with flashing green LED is completed beforehand, as already
described in the chapter 'Idling' – last passage.
When operating the control the battery voltage has to be checked from time
to time. If the voltage drops too far a warning message is created. In this case
the battery has to be replaced.
The display of the TAN has to be cleaned with a damped yet not wet cloth
from time to time. As detergents customary household detergents for greasy
surfaces can be used.
No further maintenance is required for the control.
Run-up phase
Switch off the
compressor
Idling
Load operation
Maintenance

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Page 1.5
FOCUS
BOGE FOCUS compressor control for screw compressors
Display information1.3
Main display This is the main display in the control menu. Here the net pressure, the final
compression temperature and the compressor status are displayed (Fig. 1).
By pressing the arrow key 왘왘
왘왘
왘the system pressure (Fig. 2) is displayed instead
of the final compression temperature!
Shows the current net pressure.
Shows the current system pressure.
Shows the current final compression temperature.
Compressor
status
Off
Ready
Run-up
Load operation
% Converter
workload
Idling
Fault
Emergency-Stop
Meaning
Compressor is switched off.
Compressor is Ready and starts automatically as
soon as the conditions are fulfilled.
Compressor is in star phase.
Compressor runs in delta phase, the solenoid valve
is closed.
Display of the workload of frequency controlled com-
pressors. The solenoid valve is closed.
Compressor runs in delta phase, the solenoid valve
is opened.
A fault has occurred on the compressor / compressed
air purification, the compressor is switched off.
The fault has to be rectified prior to a restart.
The Emergency-Stop button has been actuated.
If a dryer module is connected, the actuation of the 왔왖왔왖
왔왖왔왖
왔왖-keys in display 1 or
2 of the main display effectuates that instead of the compressor status the
tendency display of the dryer is displayed.
The tendency display is an indicator for the relative humidity of the com-
pressed air.
With a relative humidity of 25% the display is exactly in the centre.
If the cooling temperature drops to <= 0°C it is entered into the calculation.
The display then moves to the left with decreasing temperatures (into the
direction LO).
If the arrow key 왖왖
왖왖
왖is pressed, the compressor status is displayed again.
Pressing of the arrow keys 왗왗
왗왗
왗왘왘
왘왘
왘leads to the next display.
Net pressure PN
System PS
pressure
Final
compression
temperature
Fig. 1
Fig. 2