EPS PS 8200-70 R, Operating Manual

28

EN

Operating Guide

PS 800 R Series

Date: 11-22-2012

Applications

Pin assignment and technical specifications of the analogue interface:

Pin

Name

Type

1

Description

Level

Electrical specifications

1

VSEL

AI Set value: Voltage

0….10V correspond to 0….100% of U

nom

2

CSEL

AI Set value: Current

0….10V correspond to 0….100% of I

nom

3

VREF

AO Reference voltage

10V

Accuracy <0.5% at I

max

 = 5mA

4

VMON

AO Actual value: current

0….10V correspond to 0….100% of U

nom

5

CMON

AO Actual value: voltage

0….10V correspond to 0….100% of I

nom

6

AGND

Reference for analogue signals

For CMON, VMON

7

Remote

DI Activate external control

External = Low (U

low

<1V),

Internal = High (U

high

>4V)

8

Rem-SB

DI Power output off

Off  = Low (U

low

<1V),

On = High (U

high

>4V)

9

OT / OVP

DO Overtemperature OT /

Overvoltage OVP

Low = No error (U

low

<1V)

High = Error (U

high

>4V)

U

max

 = 30V, I

max

 = 20mA

Quasi Open Collector with

pull-up to +15V

10

DGND

Reference for digital signals

For control and monitoring signals

11

Reserved

X

must not be connected

12

Reserved

X

must not be connected

1)

AO = Analogue output, DI = digital input (no TTL/CMOS), DO = digital output (no TTL/CMOS)

Accuracy 0.2% at I

max

 = +2mA

Short-circuit-proof against AGND

U

max

 = 30V

I

out

 = <1mA at 5V

I

out

 = 2mA typ. at 0V

Accuracy <0.5%, U

max

 = 12V

Input impedance >100k

6.1  Examples for the analogue interface

6.1.1  Remotely switching output on / off

Input : REM-SB (8)

The input can be used to switch off the device output 

at any time. After this, switching it on again is only 

possible by releasing the contact or switch.
The contact/switch on pin 8 overrides the pushbutton 

„Output On/Off“. It means, if pin 8 „forces“ the output 

to be off, it can not be switched on by the pushbutton.
Switching to remote control by pin 7 is not required.
During remote control, this input REM-SB is also 

used to acknowledge and reset an OVP error by 

pulling the pin to LOW (=off).

6.1.2  Monitoring voltage and current

Analogue outputs: VMON (4) and CMON (5)

The analogue monitoring outputs VMON and CMON 

put out 0...10V, which corresponds to 0...100% of 

the actual values of voltage and current.
Measuring those output should be done with high-

impedance meters or a high-impedance input of a 

measuring circuit, because those outputs can only 

drive limited current.