ABB ProKiln GAC400 Operating Instruction page 55

ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
Connection for protective installation
The probe gas sampling system is fitted with an electric signal
input that integrates an external protective installation to secure
the danger area around the retractor. The protective installation
should be supplied locally and could consist, as an example, of a
door leading to the probe or a fence surrounding it.
Connect the appropriate output of the protective installation
signal to the input 'protective installation', as shown in the
documentation enclosed with the delivery of the system: 'EL-
DOCUMENTATION FOR PROBE SYSTEM'.
In general, the signal from the protective installation should
work as follows:
– Protective installation signal = 0 (contact open from
device), probe retracts out of the and flange shutter
closes.
– Protective installation = 1 (contact closed from device),
probe works normally.
Connection option for air cannon
In order to prevent dangers caused by a blast of air from an
external air cannon in or close to the area of the wall tube, the air
cannon must be integrated into the probe gas sampling system
control
system. The control cabinet is fitted with an air cannon
connector to make sure the safe operation is granted.
Connect the external air cannon control-signal, to the input 'air
cannon', as shown in the documentation enclosed with the
delivery of the system: 'EL-DOCUMENTATION FOR PROBE
SYSTEM'.
In general, the signal to the air cannon works as follows:
– Air cannon = 0 (contact open at ProKiln contact terminal),
external air cannon is deactivated, only with probe in
retracted position.
– Air cannon = 1 (contact closed at ProKiln contact
terminal), external air cannon is activated, only with
probe in inserted position S3.
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