User manual

43
© 2008, Elektro-Automatik GmbH & Co. KG
EN
8.4 Pin assignment of the analogue interface
Handling the device
Pin Name Type² Description Level Electrical specifications
1 VSEL AI Set value for voltage 0…10V, corresponds to 0..100% of U
nenn
Accuracy typ. 0,1%
2 CSEL AI Set value for current 0…10V, corresponds to 0..100% of I
nom
Input impedance Ri > 40k…100K
3 PSEL AI Set value for power 0…10V, corresponds to 0..100% of P
nom
4 RSEL AI Set value for resistance 0…10V, corresponds to 0..100% of R
nom
5 AGND POT
Reference potential for analogue
signals
For VSEL, CSEL, PSEL, RSEL, VMON, CMON, PMON,
VREF
6 DGND POT Reference potential for digital signals For control and error signals
DI Selection internel / external External = LOW (U
low
<1V) U range = 0 …30V
Internal = HIGH (U
high
> 4V) or open I
max
. = -1mA at 5V
U
LOW to High typ.
= 3V
Sender: open collector against DGND
DI Load input on/off OFF = LOW (U
low
<1V) U range = 0 …30V
ON = HIGH (U
high
> 4V) or open I
max
. = -1mA at 5V
U
LOW to High typ.
= 3V
Sender: open collector against DGND
9 VMON AO Actual value of voltage 0…10V correspond to 0..100% of U
nom
Accuracy typ. 0,1% at I
max.
= +2mA
10 CMON AO Istwert Strom 0…10V correspond to 0..100% of I
nom
Short-circuit-proof against AGND
AO Accuracy typ. 0,1% at I
max.
= +5mA
Short-circuit-proof against AGND
DI Selection R=on / R=off R regulation = on = LOW (U
low
<1V) U range = 0 …30V
R regulation = off = HIGH (U
high
> 4V) or open I
max
. = -1mA at 5V
U
LOW to High typ.
= 3V
Sender: open collector against DGND
DI
Select resistance range
4
R
max
= resistance range 1 = LOW (U
low
<1V) U range = 0 …30V
R
max
= resistance range 2 = HIGH (U
high
> 4V) or open I
max
. = -1mA at 5V
U
LOW to High typ.
= 3V
Sender: open collector against DGND
DI Trigger input triggers A->B = LOW (U
low
< 1V) U range = 0 …30V
triggers B->A = HIGH (U
high
>4V) or open I
max
. = -1mA at 5V
U
LOW to High typ.
= 3V
Sender: open collector against DGND
DO Overtemperature/Overvoltage OT or OVP = HIGH (U
high
> 4V) Quasi open collector with pull-up against +15V
no OT or OVP = LOW (U
low
< 1V) At 15V at this output there will be max. +1,5mA
Short-circuit-proof against DGND
Receiver: U
low
<1V, U
high
> 4V
²:
Note: positive currents flow out of the analogue interface and negative currents flow into.
AI = Analogue input
DI = Digital input
DO = Digital output ³ only for Level A/B operation, requires to be enabled in the setup menu
AO = Analogue output
4
see technical specs
1
requires a resistance set value at RSEL
7
Remote
8
Rem-SB
11
VREF
Reference voltage
10,00V
12
R-active
13
R-Range
14
Trigger In
15
OT / OVP