Technical
Specifications
ET
System
electronic
GmbH
3
Programming
accuracy
(I
out
)
±
0.05
%
+2
mA
Display
accuracy
(V
out
)
<
±
0.5%
Display
accuracy
(I
out
)
<
±
0.5%
Isolation
3,000
V
Over
voltage
protection
0
‐
120
%
V
max
Circuit
protection
OC/OV/OT/OP
Line
Regulation
<
±
0.1
%
+
2
mV
AI
I
NTERFACE
Digital
outputs
(CV,
Standby,
Error)
Output
type:
Open
collector
with
pull
‐
up
resistor
10
k
after
+
5
V
I
sinkmax
:
50
mA
Digital
inputs
(Ext.
Control,
Standby)
Input
resistance:
47
k
Ω
Maximum
input
voltage:
50
V
High
level:
U
e
>
2
V
Low
level:
U
e
<
0.8
V
Analog
outputs
(X
mon
)
Output
resistance:
100
Ω
Minimum
permissible
load
resistance:
2
k
Ω
Imax:
5
mA
Minimum
load
resistance
for
0.1
%
accuracy:
100
k
Ω
Analog
inputs
(X
set
)
Input
resistance:
1
M
Ω
Maximum
permissible
input
voltage:
25
V
Reference
voltage
Reference
voltage
U
ref
:
10
V
±
10
mV
Output
resistance:
<
10
Ω
Maximum
output
current:
10
mA
(not
short
‐
circuit
‐
proof)
5
V
‐
Supply
voltage
Output
voltage:
5
V
±
300
mV
Maximum
output
current:
50
mA
(not
short
‐
circuit
‐
proof)
RS
232
Signal
inputs
(RxD,
CTS)
Maximum
input
voltage:
±
25
V
Input
resistance:
5
k
Ω
(Type)
Switching
thresholds:
U
H
<
‐
3
V,
U
L
>
+
3
V
Signal
outputs
(TxD,RTS)
Output
voltage
(at
R
Last
>
3
k
Ω
):
min
±
5
V,
Type
±
9
V,
max
±
10
V
Output
resistance:
<
300
Ω
Short
circuit
current:
Type
±
10
mA
RS
485
Maximum
input
voltage
±
5
V
Input
resistance
>
12
k
Ω
Output
current
±
60
mA
Max
High
level
U
d
>
0.2
V
Low
level
U
d
<
‐
0.2
V
