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ANALOG CONTROL
107
Note
The Ext-R
configuration is recommended for
safety reasons. In the event that the cables become
accidentaly disconnected, the voltage output will
drop to zero. Under similar circumstances using
Ext-R , an unexpected high voltage would be
output.
If swtiches are used to switch between fixed
resistances, use switches that avoid creating open
circuits. Use short-circuit or continous resistance
switches.
Connection
Power
supply
EXT-R
Analog
connector
7
6
Output
Terminal
2 core shielded
wire or twisted
pair
Pin6
→
EXT-R
Pin7
→
EXT-R
Wire shield → negative (
-) output terminal
Steps
1.
Connect the external resistance according to the
connection diagrams above.
2.
Set the F-90 (CV Control)
configuration settings to 2 for Ext-
R or 3 for Ext-R .
Page 96
Be sure to cycle the power after the power on
configuration has been set.
3.
Press the Function key and confirm
the new configuration settings (F-
90=2 or 3).