User manual

13
© 2009, Elektro-Automatik GmbH & Co. KG
EN
Operating the device
Pin Name Type* Description Level Electricalspecication
1 VSEL AI Set value: voltage
0…10V correspond to
0..100% of U
nom
Accuracy < 0,2%
Impedance Ri > 40k…100K
2 CSEL AI Set value: current
0…10V correspond to
0..100% of I
nom
3 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 …30V
I
max
= -1mA at 5V
U
Low to High typ
.
= 3V
Sender: Open collector against D_GND
6 OT DO Overtemperature error
OT = HIGH, U
high
> 4V
no OT = LOW, U
low
<1V
Quasi open collector with pullup to Vcc **
At 5V at the output there will be max.+1mA
I
max.
= -10mA at U
CE
= 0.3V
U
max.
= 0...30V
Short-circuit-proof against DGND
7 N.C. Not connected
8 N.C. Not connected
9 VMON AO Actual value: voltage
0…10V correspond
0..100% of U
nom
Accuracy < 0.1% 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...13V
I
max
= 20mA
Short-circuit-proof against DGND
13
REM-SB DI Output off
Output
off = LOW, U
low
<1V
on = HIGH, U
high
> 4V
on = OPEN
U range = 0…30V
I
max
= -1mA at 5V
typ. U
Low to High typ
.
= 3V
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 pullup to Vcc **
At 5V at the output there will be max.+1mA
I
max
= -10mA at U
ce
= 0.3V
U
max
= 0...30V
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 = 13.8V
Remote control of current and voltage
Two potentiometers between VREF and ground, sliders at the in-
puts VSEL and CSEL. The power supply can be controlled as with
the rotary encoders on the front and can either operate as current
or voltage source. In compliance with the max. 3mA for the VREF
output, potentiometers with at least 10kOhm have to be used.