User Manual

Page 53
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PSB 9000 2.5 kW Series
3.6.4.2 Resolution
The analog interface is internally sampled and processed by a digital microcontroller. This causes a limited resolu-
tion of analog steps. The resolution is the same for set values (VSEL etc.) and actual values (VMON/CMON) and
is 26214 when working with the 10 V range. In the 5 V range this resolution halves. Due to tolerances, the truly
achievable resolution can be slightly lower.
3.6.4.3 Acknowledging device alarms
In case of a device alarm occurring during remote control via analog interface, the DC terminal will be switched
o󰀨thesamewayasinmanualcontrol.Thedevicewouldindicateanalarm(see3.7.2) 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„3.5.3.1. Menu “General Settings”“).
Some device alarms (OVP, OCP and OPP) have to be acknowledged. Also see „3.7.2. Device alarm and event
handling“. AcknowledgmentisdonewithpinREM-SBswitchingtheDCterminalo󰀨andonagain,meansaHIGH-
LOW-HIGH edge (min. 50ms for LOW), when using the default level setting for this pin.
There is an exception: the SOVP (Safety OVP) alarm, which is only featured with the 60 V model of this series.
It can’t be acknowledged and requires to power-cycle the device. It can be monitored via the analog interface and
would be indicated by the alarms PF and OVP being signaled at the same time, so it would require to select the
alarm indication on pin 6 to at least signal PF and for pin 14 to signal OVP in any of the combinations.
3.6.4.4 Analog interface specication
Pin Name Type * Description Default levels Electricalspecications
1 VSEL AI Voltage set value
0…10 V or. 0...5 V correspond
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
Current set value
(source & sink)
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 Digital ground For all digital 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 /
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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 RSEL AI
Resistance value
(source & sink)
0…10 V or. 0...5 V correspond
to R
Min
...R
Max
Accuracy 0-5 V range: < 0.4% *****
Accuracy 0-10 V range: < 0.2% *****
Input impedance R
i
>40 k...100 k
8 PSEL AI
Power set value
(source & sink)
0…10 V or. 0...5 V correspond
to 0..100% of P
Nom
9 VMON AO Actual voltage
0…10 V or. 0...5 V correspond
to 0..100% of U
Nom
Accuracy 0-5 V range: < 0.4% *****
Accuracy 0-10 V range: < 0.2% *****
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% of I
Nom
11 AGND POT Analog ground For -SEL, -MON, VREF Signals
12 R-ACTIVE DI Rmodeon/o󰀨
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
U
LOW to HIGH typ.
= 3 V
Rec’d sender: Open collector against DGND
13 REM-SB DI
DC terminal OFF
(DC terminal 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 terminal
On = LOW, U
Low
<1 V
O󰀨=HIGH,U
High
>4 V