CARLO GAVAZZI EDM 35 -, Руководство пользователя

Страница: 41 / 48

ENGLISH
41
7.2.15 Analogue Output Module (5100560)
Output
range
0 - 20 mA
4 - 20 mA
0 - 10 V
Accuracy
±1% ±0.1 mA
±1% ±0.05 V
Temperature
drift
±200 ppm/°C
Load
resistance
< 500
Ω
> 1000
Ω
Output
resistance
N/A
≤
3
Ω
Short-circuit
protection
Yes
Time
constant
1 s
Specifications
Outputs are source signals and linearly proportional to the displayed values.
A) 0 - 20 mADC and 4 - 20 mADC output signal
Relationship between output signal and displayed value:
0 - 20 mA 4 - 20 mA
I = output current (mA)
Hi = max. programmed value of the whole measuring range
Lo = min. programmed value of the whole measuring range
Rdg = displayed value
B) 0 - 10 V output signals
Relationship between output signal and displayed value:
V = output voltage (V)
Hi = max. programmed value of the whole measuring range
Lo = min. programmed value of the whole measuring range
Rdg = displayed value
I =
I = + 4
16 (Rdg - Lo)
Hi - Lo
20 (Rdg - Lo)
Hi - Lo
V =
10 (Rdg - Lo)
Hi - Lo
Input signal
to EDM
> HiE (overrange)
< LoE (underrange)
Analogue output
0 - 20 mA
20 mA
0 mA
Analogue Output
0 - 10 V
10 V
0 V
Relationship between over-/underrange and analogue output:
Analogue Output
4 - 20 mA
20 mA
4 mA
Display
indication
EE
-EE
Caution!
An insulation voltage of 125 Vrms between analogue output and all
other connections, except relay outputs and power supply, limits the
use of the system. The insulation voltage is only intended to break
ground loops and not to serve as a safety function.