HP 654 A Series Operating Manual page 34

Analog Connector
Table 4-1. Analog Connector Functions
Pin
Punction
IP
±IP
Series 654xA and 655xA
Current Programming Input. Allows an external voltage source to program CC
{constant current) mode. CC is programmed with a Q to ~5 V signal that produces a
proportional output current from zero to full scale. The IP input is also used for
auto-parallel operation as described later in this chapter.
Series 657xA
Differential Current Programming Input. Allows an external voltage source to
program CC (constant current) mode. ±1P accepts a signal (see
Analog
Programming
in Table l-2b) that produces a proportional output current from zero
to full scale. 4-IP is positive with respect to -IP. -IP may be floated up to ±19 V
from the Common P (j P) terminal, which is approximately at the same potential
as the + output. The ±IP input is also used for auto-parallel operation as described
later in this chapter.
VP
Voltage Programming Input. Allows an external voltage source to program CV
(constant voltage) mode. CV is programmed with a signal (see Analog Programming
(IP & VP) in "Supplemental Characteristics") that produces a proportional output
voltage from zero to full scale.
+IM
Series 654xA and 655xA
Current Monitor Output. Monitors the output current with respect to Common P
(fP). A 0 to -5 V signal at this output indictes a zero-to-full scale current, +IM is
also used when connecting supplies in autoparallel for increased current output (see
"Auto-Parallel Operation").
-IM
Series 654xA and 655xA
Current Monitor Input. Connects to Common P (jP) when connecting supplies in
autoparallel for increased current output (see "Auto-Parallel Operation").
IM
Series 657xA
Current Monitor Output. Monitors the output current with respect to Common P
(IP). A signal (see Current Monitor (IM) in Table l-2b) at this output indicates a
zero-to-fuli scale current. +IM is also used when connecting supplies in autoparaiiel
for increased current output (see "Auto-Parallel Operation").
Common P
UP)
Series 654xA and 655xA
Common Return. Provides the common connection for the IP and VP programming
inputs and the +IM current monitor output.
Common P
m
Series 657xA
Common Return. Provides the common connection for the VP programming input
and the IM current monitor output.
±s
Series 654xA and 655xA
Remote Sense Inputs. Connects the load sense input leads to the power supply
when the rear panel Remote Sense switch is in the Remote position (see "Remote
Sensing").
±s
Series 657xA
Sense Inputs. Connects the power supply sense input to either the +LS and -LS
terminals for local sensing (see "Local Voltage Sensing") or to the load for remote
sensing (see "Remote Voltage Sensing").
After you have finished making the analog connections, insert the plug back into the analog
connector and replace the output safety cover.
Analog Connector
User Connections and Considerations 4-3