User manual

36
© 2007, Elektro-Automatik GmbH & Co. KG
EN
About the interface cards
4.4 Analogue interface IF-A1
4.4.1 Pin assignment of the analogue interface (25-pole D-Sub socket)
Pin Name Function Description Level Electricalspecications
1 AI1 PSEL / RSEL
Analogue input:
Set value power / resistance
0..10V correspond to
0..100% von P
nom
/ R
nom
E
r
< 0.1%
1)
Input impedance R
i
> 25k
2 AI2 VSEL
Analogue input:
Set value voltage
0..10V correspond to
0..100% von U
nom
3 AI3 CSEL
Analogue input:
Set value current
0..10V correspond to
0..100% von I
nom
4 AO1 PMON
Analogue output:
Actual value power
0..10V correspond to
0..100% von P
nom
E
r
< 0.1%
1)
at I
max
= +2mA
4)
Short-circuit-proof against GND
5 AO2 VMON
Analogue output:
Actual value voltage
0..10V correspond to
0..100% von U
nom
6 AO3 CMON
Analogue output:
Actual value current
0…10V correspond to
0..100% von I
nom
7 DO1 CV
Digital output:
Constant voltage operation „CV“
CV = Low
No CV = High
Quasi open collector with pull-up resistor
against VCC
I
max
= -10mA
4)
at U
low
= 0.3V
U
max
= 0...30V
Short-circuit-proof against GND
Receiver: U
low
< 1V; U
high
> 4V)
8 DO2 OVP
Digital output:
Overvoltage protection active
OVP = High
No OVP = Low
9 DO3 OT
Digital output:
Overtemperature error
OT = HIGH
No OT = Low
10 DO4 Mains
Digital output:
Mains voltage present
Mains present = Low
No mains = High
11 DO5 Standby
Digital output:
Output Off
Output OFF = Low
Output ON = High
12
DO6 CC
Digital output:
Constant current operation „CC“
CC = Low
No CC = High
13 DO7 CP
Digital output:
Constant power operation „CP“
CP = Low
No CP = High
14 AGND SEL
2)
Reference potential of the
analogue inputs
Reference for SEL signals
15
AGND
2)
Reference potential of the
analogue outputs
Reference for MON signals and VREF
16
17 N.C.
18 AO0 VREF
Analogue output:
Reference voltage
10V
Fr < 0.1%
1)
, I
max
= + 8mA
4)
Short-circuit-proof against GND
19 +VCC
Auxiliary voltage
(Reference: DGND)
12V…16V
I
max
= +50mA
4)
Short-circuit-proof against DGND
20
DGND
2)
Reference potential of the digital
ports
Reference for +VCC, control and
noticationsignals
21
22 DI1 SEL-enable
Digital input:
Switch-over to external interface
(else: local operation)
Jumper set to „Low
Level“:
SEL-enable on = Low
SEL-enable off = High
Presettable input level (High/Low range):
3)
1) U
Low
= < 1V ; U
High
= > 4V or
2) U
Low
= < 5V ; U
High
= > 9V
Presettable logic level if input is not wired:
open = High Level or Low Level
23 DI2
Rem-SB
Digital input:
Output off
Jumper set to „Low
Level“:
Output on = Low
Output off = High
24
Reserved
25
N.C.
1) E
r
- relative error. It describes the relation between set value and actual value and is given as the max. difference from the nominal value, in per cent.
2)AGNDandDGNDareconnectedinternally.AGNDSELatPin14isinpedendent.Itservesasreferenceforthedifferenceampliersofallanalogueinputs.
DIx, DOx, +Vcc are referenced to DGND. VREF, VMON, CMON, PMON are referenced to AGND. VSEL, CSEL und PSEL are referenced to AGND SEL.
3) Digital input, depending on the preset with the jumpers:
a) Setting High Range (high threshold): U
in
= 0V; I = -1.5mA, U
in
= 12V; I = +0.7mA; U
in
= 24V; I = +4.5mA, Thresholds: U
Low
= < 5V; U
High
= > 9V
b) Setting Low Range (low threshold): U
in
= 0V; I = -1.5mA, U
in
= 12V; I = 2.2mA, U
in
= 24V; I = +6mA, Thresholds: U
Low
= < 1V; U
High
= > 4V
4)Positivecurrentsareowingoutofthedevice,negativecurrentsareowingintoit.