S82D

S82D

4

Operation

Remote Sensing Function

This function corrects a voltage drop in the load wiring. When using

the remote sensing function, remove the short bars from the remote

sensing terminals as shown in the following diagram.

Remote sensing connection

(2-wire shielded cable)

Load

Load wiring

Remove the

short bar

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 +S and +V terminals are left unconnected, the high

voltage protection function will engage and the output

voltage will be cut off. If the -S and -V terminals are left

unconnected, the output voltage will increase about 5%.

Remote Control Function

This function allows the output voltage to be turned on and off with

an external signal (as long as the input voltage is being applied).

When using the remote control function, remove the short bar (at-

tached at ex-factory condition) from the remote control terminals

and connect a switch or transistor as shown in the diagram below.

Remove the

short bar

Tr*

Level

Output voltage

L (0.8 V max.)

ON

H (2 V min.)

OFF

Note:

The remote control circuit is insulated from input, output,

and GR.

Fan Alarm

When the speed of the internal fan drops, the fan alarm output

(SPST-NO) will turn ON (shorted).

Normal condition

Alarm condition

Noise filter

Fuse*

ACG

FG

AC (L)

AC (N)

Input

100/200 V

Inrush

current

prevention

Rectifier

Rectifier

Drive

Detection

Overvoltage

detection

Low-voltage

detection

Fan alarm circuit

Remote control

circuit

Control circuit

Overload

detection

Auxiliary power

circuit

+ V

– V

+ S

– S

CB

FAN ALM

+ RC

– RC

FAN ALM

DC Output

Remote sensing

Current balance

Fan alarm

Remote control

*Fuse capac-

ity

300 W: 8 A

600 W: 15 A

Short bar