18
Pin No.
Signal name
Function
19 COM
COM.
Connected with the negative output terminal.
20 EXT
ALARM
IN
Causes the alarm status when short-circuited with the
COM pin.
21
EXT OUTPUT IN
Turns on output when short-circuited with the COM pin.
22 COM
COM.
Connected with the negative output terminal.
23
EXT CV STATUS OUT
Open collector output.
Set to the L level when the CV mode.
24
EXT CC STATUS OUT
Open collector output.
Set to the L level when the CC mode.
25 ALARM
OUT
Open collector output.
Set to the L level when the alarm mode.
26
STATUS COM
(23
､
24
､
25
の
COM)
COM of pins 23, 24 and 25.
23. Sensing terminals
Used to change the sensing point.
Short-circuited before shipment to select the internal sensing.
◆
See section “
5-6. Output Voltage Remote Sensing
” below.
24. Rear output terminals
Power of the PSF-H Series power supply unit is output through these terminals.
On each terminal block, the positive (
＋
) terminal is on the first and second pin
at left side and the negative (
－
) terminal is on the first and second pin at right
side when the unit is viewed from the back.
Connect either output terminal with the accessory cable and screw with the
mark near the terminal block if it need be grounded with the frame.
25. J1 control signal input connector
This connector is provided for one-control operation.
Use the optional one-control operation cable.
◆
See sections
“6-2. One-Control Parallel Operation”
below.
26. J2 control signal output connector
This connector is provided for one-control operation.
Use the optional one-control operation cable.
◆
See sections
“6-2. One-Control Parallel Operation”
below.
27. Exhaust grill
Air taken into the unit from the front is blown out through this grill. Leave a
30cm or more space behind the rear panel for good ventilation. If there is
some object near the rear panel, the temperature inside the power supply unit
may rise excessively.
