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11.
Step 8: General Purpose Equipment Control
TG-2000A can control and monitor system equipment.
By using general-purpose control functions, you can control and monitor other manufacturer’s air
conditioning units, lighting fixtures and other system equipment as well as water level of a water or fire tank
with a flooding/low level alarm on the TG-2000A monitor screen.
System equipment is controlled by PLC. “General-purpose control software: PAC-YG21CDA” needs to be
installed in PLC. (For PAC-YG21CDA Ver.1 series, no licensing registration needed for G-50A.)
●● Operation and monitoring of general purpose system equipment cannot be
controlled if the PLC or other equipment fails. Take this into consideration, and
make sure you provide a circuit for a switch for an emergency stop/start. Do not
use it for monitoring the system affecting human life. In case you do, incorporate
an alternative safety mechanism.
CAUTION
Other systems
PLC (general purpose control
software installed)
TG-2000A
Lighting
Other manufacturer’s packaged
air-conditioning units
Other manufacturer’s fan coil units
Chiller/heat source
machine
General purpose system equipment
Figure 11-1 General purpose control system composition