Series EJ, ET, EY, FJ & FR
102002-177 Rev M2
33
\1020\02177M2.doc 17 Jun 2019
J3-8 SIGNAL COMMON
This terminal is provided for all programming and measuring instrument returns.
This separate COMMON return is provided so that the digital and HV return currents
cannot create a voltage drop that could cause an error in the program
monitor/signals. It is connected internally to the same COMMON as J3-2 and J3-11.
NOTE:
INTERFACE DIAGRAM FIG 11 is just one example of the many possible interface
configurations.
INTERFACE DIAGRAM FIG 12 shows the minimum number of connections to com-
pletely enable the supply. In this configuration, output voltage and current are
controlled by the front panel controls (except on “NC” option units which have no
front panel controls). No external signals are required.
J3-10 I-MONITOR
A 0-10 V signal, positive with respect to SIGNAL COMMON, and in direct
proportion to the output current, is available at this terminal. An internal 10 k ohm,
1%, limiting resistance protects the circuitry. Therefore, it is recommended that a
digital voltmeter be used to monitor this output. It is also acceptable to use a 1 mA
DC full scale instrument (i.e. analog meter) for monitor purposes (See INTERFACE
DIAGRAM FIG 6).
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