7
S82H
S82H
Operation
■
Remote Sensing Function
The remote sensing function makes it possible to compensate for
voltage drops caused by load lines. To use this function, remove
the short bar from the remote sensing terminals and wire the
Power Supply and load as shown in the following illustration. The
remote sensing terminals are short-circuited with the short bar
before shipping.
Note:
1.
When the voltage drop in the load wiring is large, the
overvoltage protection function might engage just from
the increase in voltage to correct the voltage drop, so
be sure to use high capacity wiring.
2.
If the remote sensing terminals are left unconnected,
the high voltage protection function will engage and the
output voltage will be cut off. Be sure to firmly tighten
the terminal screws.
■
Remote Control Function
The remote control function enables external signals to turn the
output of the Power Supply ON and OFF. To use this function,
remove the short bar from the remote control terminals and con-
nect a switch or transistor to the Power Supply as shown in the
following illustration. The remote control terminals are short-cir-
cuited with the short bar before shipping.
Note:
No output will be produced if the terminals are left uncon-
nected. Be sure to firmly tighten the terminal screws.
■
Fan Alarm Function
(300- and 600-W Models Only)
When the speed of the internal fan drops, the fan alarm output
(SPST-NO) will turn ON (shorted) and after 5 seconds, the output
voltage will be turned off.
The relay contacts must be used with 1 A at 30 V or 1 A (125 VA)
at 250 VAC.
(100-/150-W Models)
Load connection lines
Remote sensing connection
(2-conductor shielded wire)
Remove
short bars.
(300-/600-W Models)
Remote sensing connection
(2-conductor shielded wire)
Load connection lines
Remove short bars.
Level
Output voltage
L (0.8 V max.)
ON
H (2 V min.)
OFF
*Use a transistor with V
CE
> 20 V and I
C
> 5 mA.
Remove
short bars.
Tr*
Tr*
FAN
ALM
Normal condition
FAN
ALM
Alarm condition
