Pin
Name
Type
Description
analog
signal
15 (Cur_Pro), 16 (Cur_MON), 17 (Cur/
Vol_Pro), 18 (Vref+) and 19 (Vref-).
2, 7, 12
Unused
–
–
8
On/Off_ In
Digital
input
Control the On/Off state of the instru-
ment. When 0V is input, the instrument
state is switched to Off; when 5V is in-
put, the instrument state is switched to
On.
9
Power
Digital
output
Indicate the instrument’s loading state:
Under normal loading state, 5V is out-
put; under non-loading state, 0V is
output.
10
CC
Digital
output
Indicate the instrument’s working
state: Under the CC mode, 5V is out-
put; otherwise, 0V is output.
11
ALM
Digital
output
Indicate the instrument’s fault state: If
the instrument is normal, 5V is output;
if the instrument is abnormal, 0V is
output.
13, 25
RS485–A,
RS485–B
Commu-
nication
terminal
RS485 interface connection terminal.
14
Vol_MON
Analog
output
Monitor the voltage, and output 0 ~
10V voltage value to monitor the DC
terminal voltage between 0 and full
scale.
15
Cur_Pro
Analog
input
Set current. The input range varies
under different modes.
Under the source mode:
•
When CV is prioritized, input 0 ~
10V voltage value to set the nega-
tive current limit (I_Lim- value) be-
tween 0 and negative full scale;
•
When CC is prioritized, input –10V
~ 10V voltage value to set the cur-
rent value between negative full
range and positive full scale;
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