51
5-7-2 Output voltage monitor and output current monitor
I
t is possible to monitor the output voltage and output current of the
PSF Series power supply unit in voltage.
This section describes how to monitor the output voltage and output
current of the two-output model (PSF-400L2). Those of a
single-output model may be monitored in the same manner as
monitoring the CHA outputs described below.
※
The internal impedance of the voltage and current monitoring
circuits is approximately 1k
Ω
.
Be careful not to flow current over 1mA through the
monitoring circuits.
(1) Voltage monitor
CHA: Pins 17 and 16 (COM), CHB: Pins 8 and 7 (COM)
(2) Current monitor
CHA: Pins 18 and 16 (COM), CHB: Pins 9 and 7 (COM)
M
M
1
2
25
26
CHA
Voltage monitor
CHA
Current monitor
－
＋
EXT CONT 「J3」
M
M
1
2
25
26
CHB
Voltage monitor
CHB
Current monitor
－
＋
EXT CONT 「J3」
Negative output
terminal of CHA
Negative output
terminal of CHB
＋
－
－
＋
Output voltage
FS
10V
Monitor voltage
Output current
FS
10V
Monitor voltage
Fig.5-14 Monitor Output Terminal
