SIGMA CONTROL BASIC program module
KAESER KOMPRESSOREN GmbH 03.06.2003 www.kaeser.com
2. Function
2.1 With the module plugged in it is possible to control the load/idle phases by means of a
remote, volt-free contact connected to input 14. The compressor runs under load when the
contact is closed and in idle when it is open. After running in idle for 240 seconds the motor
switches off and the compressor is then in the standby state. If the compressor on key (I) is
pressed when the contact is open the compressor remains in the standby state.
In the event of an unclear load signal (contact permanently closed) a degree of emergency
control can be achieved and unnecessarily high system pressure and power consumption
avoided by setting the cut-out pressure (parameter 8) at 0.4 bar above the required system
pressure. In the case of a fault the controller regulates system pressure by means of
parameters 8 and 7 (cut-out pressure and switching differential).
2.2 If, with the program module in place, it is required to regulate system pressure by means
of the compressor controller rather than the remote contact it is necessary to set the cut-out
pressure at the required system pressure (parameter 8) and connect a wire jumper between
input 14 and P24.
2.3 When the program module has been inserted and power switched on the controller works
only with the module program. The program stored in the controllers memory is permanently
deleted. The module program is not transferred to the controller's memory so the compressor
can no longer be operated without the module.
3. Installation
Attention!
Before starting work on any electrical system the following actions must be taken in
the sequence given:
1. Switch off all phases
2. Lock the switch in the 'of' position
3. Check that no voltage is present
The module may only be installed by a qualified person.
KAESER KOMPRESSOREN cannot accept any liability for damage caused by the
retrofit.
3.1 Note counter readings
Counter readings are not taken over by the new software.
Note the following counter readings:
- parameter 0: operating hours
- parameter 1: hours under load
- parameter 2: hours to next service (interval)
3.2 Plugging in the program module
The module aperture is on the rear of the controller to the left and above the plug connector
X1. The aperture is protected by a cover. Insert a screwdriver carefully in the slot on the left
of the cover and prize it out of the aperture. The aperture is beveled on the upper right side.
The module has a corresponding beveled corner. Push the module into the aperture until it
clicks into place.
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