Vega VEGABAR 87 Operating Instructions Manual page 55

Connection technology
Range of the output signal
Signal resolution
Fault signal, current output (adjustable)
Max. output current
Load
Damping (63 % of the input variable),
adjustable
Output variable - Additional current output
For details on the operating voltage see chapter "Voltage supply"
Output signal
Range of the output signal
Signal resolution
Fault signal, current output (adjustable)
Max. output current
Starting current
Load
Damping (63 % of the input variable),
adjustable
Dynamic behaviour output
Dynamic characteristics depending on medium and temperature
Fig. 27: Behaviour in case of sudden change of the process variable. t
time
1 Process variable
2 Output signal
Dead time
Rise time
Step response time
Damping (63 % of the input variable)
VEGABAR 87 • 4 ... 20 mA
100 %
90 %
1
10 %
t
T
Two-wire
3.8 ... 20.5 mA (default setting)
0.3 µA
≤ 3.6 mA, ≥ 21 mA, last measured value
21.5 mA
See load resistance under Power supply
0 ... 999 s
4 ... 20 mA (passive)
3.8 ... 20.5 mA (default setting)
0.3 µA
Last valid measured value, ≥ 21 mA, ≤ 3.6 mA
21.5 mA
≤ 10 mA for 5 ms after switching on, ≤ 3.6 mA
Load resistor, see chapter "Voltage supply"
0 ... 999 s
2
t
A
t
S
: dead time; t
T
≤ 50 ms
≤ 150 ms
≤ 200 ms (ti: 0 s, 10 ... 90 %)
0 ... 999 s, adjustable via menu item "Damping"
11 Supplement
t
: rise time; t : jump response
A S
55