5
© 2009, Elektro-Automatik GmbH & Co. KG
EN
•
The input REM-SB (remote standby, pin 1) overrides the
pushbutton
Output On
. It means, the output can not be switched
on by the button if the pin defines the output state as „off“ So it
can be as emergency power off.
•
The output VREF can be used to build set values for the set
value inputs VSEL, CSEL and PSEL. For example, if only
current control is required, pin VSEL and PSEL can be bridged
to VREF. CSEL is then either fed by an external voltage (0...5V
or 0...10V) or via a potentiometer between VREF and ground.
Also see next section.
• Putting in set values up to 10V while the 0...5V range is selected
will ignore any voltage above 5V (clipping) and keep the output
value at 100%.
•
The grounds of the analogue interface are related to minus
output
.
Operating the device
10.2 Example applications
Overview D-Sub socket
Attention! Never connect grounds of the analogue
interface to minus (negative) output of an external
control application (PLC, for example), if that control
application is otherwise connected to the neative pow-
er supply output (ground loop). Load current may flow
over the control leads and damage the device!
Pin Name
Type* Description
Level
Electrical specification
1
VSEL
AI
Set value: voltage
0…10V correspond to
0..100% of U
Nom
Accuracy < 0,2%
Impedance Ri >100K
2
CSEL
AI
Set value: current
0…10V correspond to
0..100% of I
Nom
VREF
AO Reference voltage
10V or 5V
Accuracy < 0.2% at I
Max
= +5mA
Short-circuit-proof against AGND
4
DGND
POT Reference potential for
digital control signals
For +Vcc, control and status signals
5
REMOTE
DI
Toggle between internal
or external control
External = LOW, U
Low
<1V
Internal = HIGH, U
High
> 4V
Internal = open
U range = 0 …0V
I
Max
= +1mA at 5V
Sender: Open collector against DGND
6
OT
DO Overtemperature error
OT = HIGH, U
High
> 4V
no OT = LOW, U
Low
<1V
Quasi open collector with pull-up to Vcc **
At 5V at the output there will be max.+1mA
I
Max
= -10mA at U
CE
= 0.V
U
Max
= 0...0V
Short-circuit-proof against DGND
7
N.C.
Not connected
8
PSEL
AI
Set value: power
0…10V correspond to
0..100% of P
Nom
Accuracy < 0.5%
Impedance Ri >100K
9
VMON
AO Actual value: voltage
0…10V correspond
0..100% of U
Nom
Accuracy < 0.2% at I
Max
= +2mA
Short-circuit-proof against AGND
10 CMON
AO Actual voltage: current
0…10V correspond
0..100% of I
Nom
11 AGND
POT Reference potential for
analogue signals
For -SEL, -MON, VREF signals
12 +Vcc
AO Auxiliary voltage output
(Ref: DGND)
11...1V
I
Max
= 20mA
Short-circuit-proof against DGND
1 REM-SB
DI
Output off
off = LOW, U
Low
<1V
on = HIGH, U
High
> 4V
on = OPEN
U range = 0…0V
I
Max
= +1mA at 5V
Sender: Open-Collector against DGND
14 OVP
DO Overvoltage error
OVP = HIGH, U
High
> 4V
no OVP = LOW, U
Low
<1V
Quasi open collector with pull-up to Vcc **
At 5V at the output there will be max.+1mA
I
Max
= -10mA at U
ce
= 0.V
U
Max
= 0...0V
Short-circuit-proof against DGND
15 CV
DO Indication of voltage
regulation active
CV = LOW, U
Low
<1V
CC = HIGH, U
High
>4V
If output off = HIGH
* AI = Analogue input, AO = Analogue output, DI = Digital input, DO = Digital output, POT = Potential
** Internal Vcc = 1.8V
