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PSI 9000 2U Series
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
3.4.4.3
Analog interface specification
Pin Name
Type* Description
Levels
Electrical properties
1 VSEL
AI
Set voltage value
0…10 V or. 0...5 V correspond
to 0..100% of U
Nom
Accuracy < 0.2%
Input impedance R
i
>40 kΩ...100 kΩ
2 CSEL
AI
Set current value
0…10 V or. 0...5 V correspond
to 0..100% of I
Nom
3 VREF
AO Reference voltage 10 V or 5 V
Tolerance < 0.2% at I
max
= +5 mA
Short-circuit-proof against AGND
4 DGND
POT Ground for all digi-
tal signals
For control and status signals.
5 REMOTE
DI
Switching internal /
remote control
Remote = LOW, U
Low
<1 V
Internal = HIGH, U
High
>4 V
Internal = Open
Voltage range = 0…30 V
I
Max
= -1 mA bei 5 V
U
LOW to HIGH typ.
= 3 V
Rec’d sender: Open collector against DGND
6 OT
DO Overheating or
power fail*** alarm
Alarm OT= HIGH, U
High
> 4 V
No Alarm OT= LOW, U
Low
<1 V
Quasi open collector with pull-up against Vcc **
With 5 V output max. flow +1 mA
I
Max
= -10 mA at U
CE
= 0,3 V
U
Max
= 30 V
Short-circuit-proof against DGND
7 -
-
-
-
-
8 PSEL
AI
Set power value
0…10 V or. 0...5 V correspond
to 0..100% von P
Nom
Accuracy < 0.5%
Input impedance R
i
>40 kΩ...100 kΩ
9 VMON
AO Actual voltage
0…10 V or. 0...5 V correspond
to 0..100% von U
Nom
Accuracy < 0.2% at I
Max
= +2 mA
Short-circuit-proof against AGND
10 CMON
AO Actual current
0…10 V or. 0...5 V correspond
to 0..100% von I
Nom
11 AGND
POT Ground for all
analog signals
For -SEL, -MON, VREF Signals
12 -
-
-
-
-
13 REM-SB
DI
DC output OFF
(DC output ON)
(ACK alarms)
Off = LOW, U
Low
<1 V
On= HIGH, U
High
>4 V
On = Open
Voltage range = 0…30 V
I
Max
= +1 mA at 5 V
Rec’d sender: Open collector against DGND
14 OVP
DO Overvoltage alarm Alarm OV = HIGH, U
High
> 4 V
No alarm OV = LOW, U
Low
<1 V Quasi open collector with pull-up against Vcc **
With 5 V output max. flow +1 mA
I
Max
= -10 mA at U
CE
= 0,3 V, U
Max
= 30 V
Short-circuit-proof against DGND
15 CV
DO Constant voltage
regulation active
CV = LOW, U
Low
<1 V
CC/CP = HIGH, U
High
>4 V
* AI = Analog Input, AO = Analog Output, DI = Digital Input, DO = Digital Output, POT = Potential
** Internal Vcc approx. 14.3 V
*** Mains blackout, mains over- or undervoltage or PFC error
3.4.4.4
Simplified diagram of the pins
+
Digital Input (DI)
The internal circuit requires that a switch
with low resistance should be used (relay,
switch, circuit breaker etc.) in order to
send a clean signal to the DGND.
A digital output from a circuit or PLC may
not be sufficient if not an “open collector”.
V~0.5
AGND
Analog Input (AI)
High resistance input (impedance
>40 k
Ω
....100 kΩ) for an OA circuit.
4.
7k
12V
+10V
Digital Output (DO)
A quasi open collector, realised as high
resistance pull-up against the internal sup-
ply. In condition LOW it can carry no load,
merely switch, as shown in the diagram
with a relay as example.
V~2
AGND
Analog Output (AO)
Output from an OA circuit, only mini-
mally impedant. See specifications
table above.
