ABB SCK - Page 110

110 Operating instruction SCK Gas Sampling System OI/SCK-EN Rev. E
The gas sampling system is fitted with an electric signal input that allows you
to integrate an external protective installation to secure the danger area
around the retractor. To do so, connect the appropriate switching output of
the movable protective installation to the signal input ( -X33 5/6 in the electri-
cal connection plan).
In order to prevent dangers caused by a blast of air from an air cannon in the
area of the wall tube, the air cannon must be integrated into the gas sampling
system control system (see Integrating the air cannon into the control sys-
tem ). The control cabinet is fitted with an air cannon connector ( -D32 64 in
the electrical connection plan).
The control cabinet is fitted with a connector for an additional warning horn ( -
X33 7/8 in the electrical connection plan).
In addition to the integrated EMERGENCY-STOP switch, the probe retractor is
fitted with a connector for an additional EMERGENCY-STOP switch. As deliv-
ered, both connectors are jumpered (see Detail "A" in pneumatic/hydraulic
interface plan). To connect an additional EMERGENCY-STOP switch, remove
the jumper and connect the connection wires to the EMERGENCY-STOP
switch.
Connection option
for
movable protective
installation
Connection option
for
air cannon
Connection option
for
additional warning
horn
Connection option
for
additional
EMERGENCY-STOP
switch