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8. REMOTE CONTROL
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Terms used in the descriptions below
Master unit:
A unit that controls the slave units.
Slave units:
All PAR-A power supply units controlled by the master unit when the IF-41RS is
used. PAR-A power supply units connected with the local bus master unit
through the local bus when the IF-41GU/IF-41USB is used.
Local bus:
A bus for connecting the PAR-A power supply units. Use modular cables
when the IF-41RS is used. Use twisted pair cables when the IF-41GU/
IF-41USB is used.
Local bus master:
PAR-A power supply units connected directly with the computer when the
IF-41GU/IF-41USB used.
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that the PAR-A power supply unit will not accept any other commands than LL1, LC1 and ST0 to
5 when an OHA occurs in it or an alarm is input to it through the external contacts.
8-1. Connecting IF-41RS
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It is possible to connect a maximum of four PAR-A power supply units (with the IF-41RS units built
in) with a master unit (such as a computer) with modular cables and control the PAR-A power
supply units. The PAR-A power supply units to be controlled as the slave units must have
system addresses (between 1 and 26).
◆
See sections "8-3-2. Setting addresses" and "8-3-3. Address setting range and set value".
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It is recommended that modular cables CB-0603S, 0615S, 0630S or 06100S be used for connection.
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The maximum cable length of the system is 10 meters between the computer and IF-41RS.
<Precautions>
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Before connecting the cables, turn off the master unit and slave units.
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Be sure to connect the IN and OUT terminals of the connectors J1. Connecting the IN (or OUT)
terminals with each other may cause troubles.
