Ea Elektro Automatik EA Elektro-Automatik EA-EL 9080-200 HP Electronic Load 0 - 200 A 0 - 80 Vdc 0 - 2400 W 33200240 데이터 시트
제품 코드
33200240
44
EN
Instruction Manual
EL 9000 HP Series
Date: 10-31-2011
8.4 Pin assignment of the analogue interface
Remote control
Pin Name
Type² Description
Level
Electrical specifications
1 VSEL
AI
Set value for voltage
0…10V, corresponds to 0..100% of U
Nom
Accuracy typically 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 and 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
DI
Load input on/off
OFF = LOW (U
Low
<1V)
U
Low to High typ.
= 3V
ON = HIGH (U
High
> 4V) or open
Sender: open collector against DGND
9 VMON
AO
Actual value of voltage
0…10V correspond to 0..100% of U
Nom
Accuracy typically 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 typically 0.1% at I
Max
= +5mA
Short-circuit-proof against AGND
DI
Selection R=on / R=off
1
R regulation = off = LOW (U
Low
<1V)
U range = 0 …30V
R regulation = on = HIGH (U
High
> 4V) or open I
Max
= -1mA at 5V
DI
Select resistance range
4
R
Max
= resistance range 2 = LOW (U
Low
<1V)
U
Low to High typ.
= 3V
R
Max
= resistance range 1 = HIGH (U
High
> 4V)
or open
Sender: open collector against DGND
DI
Trigger input
3
triggers A->B = LOW (U
Low
< 1V)
triggers B->A = HIGH (U
High
>4V) or open
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
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
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
14 Trigger In
15 OT / OVP
12 R-active
13 R-Range
11 VREF
Reference voltage
10V
7 Remote
8 Rem-SB
External control with current only
Like in the example above, but only current adjustable.
Like in the example above, but only current adjustable.
The power is set to maximum.
VREF
AGND
CSEL
10k
DGND
Figure 21