Instructions

Page 58
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PS 9000 3U Series
3.5.4.3 Acknowledging device alarms
In case of a device alarm occurring during remote control via analog interface, the DC output will be switched
o󰀨 the same way as in manual control. The device would indicate an alarm (see 3.6.2) in the front display and, if
activated, acoustically and also signal most of them on the analog interface. Which alarms actually are signaled
can be set up in the device conguration menu (see „3.4.3.1. Menu “General Settings”“).
Some device alarms (OVP, OCP and OPP) have to be acknowledged. Also see „3.6.2. Device alarm handling“.
Acknowledgment is done with pin REM-SB switching the DC output o󰀨 and on again, means a HIGH-LOW-HIGH
edge (min. 50ms for LOW), when using the default level setting for this pin.
3.5.4.4 Analog interface specication
Pin Name Type* Description Default levels Electrical specication
1 VSEL AI Set voltage value
0…10 V or. 0...5 V corre-
spond to 0..100% of U
Nom
Accuracy 0-5 V range: < 0.4% *****
Accuracy 0-10 V range: < 0.2% *****
Input impedance R
i
>40 k...100 k
2 CSEL AI Set current value
0…10 V or. 0...5 V corre-
spond 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
digital 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 at 5 V
U
LOW to HIGH typ.
= 3 V
Rec’d sender: Open collector against DGND
6 ALARMS 1 DO
Overheating or
power fail alarm
Alarm= HIGH, U
High
> 4 V
No alarm= LOW, U
Low
<1 V
Quasi open collector with pull-up against Vcc **
With 5 V on the pin max. ow +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 corre-
spond to 0..100% of P
Nom
Accuracy 0-5 V range: < 0.4% *****
Accuracy 0-10 V range: < 0.2% *****
Input impedance R
i
>40 k...100 k
9 VMON AO Actual voltage
0…10 V or. 0...5 V corre-
spond to 0..100% of U
Nom
Accuracy 0-5 V range: < 0.4% *****
Accuracy 0-10 V range: < 0.2% *****
at I
Max
= +2 mA
Short-circuit-proof against AGND
10 CMON AO Actual current
0…10 V or. 0...5 V corre-
spond to 0..100% of 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 ****)
O󰀨 = 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 ALARMS 2 DO
Overvoltage alarm
Overcurrent alarm
Overpower alarm
Alarm = HIGH, U
High
> 4 V
No alarm = LOW, U
Low
<1 V
Quasi open collector with pull-up against Vcc **
With 5 V on the pin max. ow +1 mA
I
Max
= -10 mA at U
CE
= 0,3 V, U
Max
= 30 V
Short-circuit-proof against DGND
15 STATUS*** DO
Constant voltage
regulation active
CV = LOW, U
Low
<1 V
CC/CP/CR = HIGH, U
High
>4 V
DC output
O󰀨 = LOW, U
Low
<1 V
On = 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
*** Only one of both signals possible, see section 3.4.3.1
**** Only during remote control
***** The error of a set value input adds to the general error of the related value on the DC output of the device