ABB SCC-U, Руководство пользователя

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SCC-U UTILITY UNIT | OI/SCC-U-EN REV. B 15
Connecting the Pt100 temperature sensors (option)
The temperature sensors of the heated filter unit (option) and
the heated sample gas line must be connected to the utility unit:
• Connect the Pt100 temperature sensor of the heated
filter unit and the heated sample gas line to
terminals
-X30
(see
X30 Pt100 terminal assignment
on
page 13).
Refer to the wiring diagrams in the delivered drawings set.
Connecting the control and status signals
Depending on the version of the utility unit or the built-in
options, these signals must be connected between the utility
unit and the gas analyzer:
• Control signals of the test gas solenoid valves,
• Status signals of the temperature controllers.
1. Connect the D-sub plug of the supplied cable to the
connector
-X32
(see
X32 D-sub 15 pin assignment
on
page 13) on the utility unit.
2. Connect the leads at the other end of the supplied cable
to the corresponding inputs and outputs of the digital
I/O modules in the gas analyzer.
Refer to the wiring diagrams in the delivered drawings set and to
the operator's manual of the gas analyzer.
Connecting the power supply of the external devices
1. Connect the cable from the heated sample gas line to the
supplied plug and connect the cable to socket
-X21
.
2. Connect the cable from the heated filter unit to
socket
-X20
.
3. Use the delivered cables to connect the power supply of
the gas analyzer and sample handling devices to
sockets
-X22
to
-X25
.
Refer to the wiring diagrams in the delivered drawings set.
Connecting the utility unit to the power supply
1. Make sure the power supply leads have an adequately
dimensioned (16 A) protective device (breaker).
2. Make sure the POWER switch on the front panel of the
utility unit is switched OFF .
3. Install a switched outlet or a breaker in the power supply
wiring near the utility unit. This should allow the utility
unit to be completely disconnected from the power
supply if necessary.
The disconnection device should be easily accessible and
identified in such a way that its relationship to the
equipment that it is designed to disconnect can be clearly
seen.
4. Connect the fixed power supply cable to the power
supply.
Refer to the wiring diagrams in the delivered drawings set.