45
5-7-6. Various status signals (CV, CC & ALARM)
It is possible to check the status using the open collector output.
●
Constant-voltage (CV) status signal
This status signal goes Low when the PSF-H Series power supply unit
enters the constant-voltage (CV) status.
●
Constant-current (CC) status signal
This status signal goes Low when the PSF-H Series power supply unit
enters the constant-current (CC) status.
●
Alarm status signal
This status signal goes Low when the PSF-H Series power supply unit
enters the alarm status.
Refer to the specification table below for details about the photo coupler.
PC3H7 made by SHARP
Item Symbol
Max.
rating
Unit
Collector-emitter voltage
V
CEO
66 V
Emitter-collector voltage
V
ECO
6 V
Collector current
I
C
50 mA
Output
Collector loss
P
C
150 mW
Total allowable loss
P
T
170 mW
Isolation voltage
BV
S
2500 Vrms
Constant-voltage (CV) status
: Pins 23 and 26 (COM)
Constant-current (CC) status
: Pins 24 and 26 (COM)
Alarm status
: Pins 25 and 26 (COM)
Fig.5-14 Status Terminals
