VEGA VEGADIF 65 Foundation Fieldbus - Manual (Page 72)

72
11 Supplement
VEGADIF 65 • Foundation Fieldbus
36130-EN-130417
Max. torque screws mounting strap 30 Nm
Max. torque screws socket external
housing
5 Nm (3.688 lbf ft)
Weight approx. 4.2 … 4.5 kg (9.26 … 9.92 lbs), depending on process
fitting
Output variable
Output
Ʋ Signal digital output signal, Foundation Fieldbus protocol
Ʋ Physical layer according to IEC 61158-2
Channel Numbers
Ʋ Channel 1 Primary value
Ʋ Channel 2 Secondary value 1
Ʋ Channel 3 Secondary value 2
Ʋ Channel 4 Temperature value
Transmission rate 31.25 Kbit/s
Current value 10 mA, ±0.5 mA
Dynamic behaviour output
Run-up time
≤ 20 s
I
63 %
100 %
t
t
1
t
2
Fig. 58: Presentation of the dead time t
1
and the time constant t
2
Version, nominal measuring range Dead time t
1
Time constant t
2
Basic version 10 bar and 30 bar 100 ms 250 ms
Basic version 100 mbar 100 ms 180 ms
Basic version 500 mbar 100 ms 180 ms
Basic version, 3 bar 100 ms 180 ms
Basic version 16 bar and 40 bar 100 ms 180 ms
Chemical seal version, all nominal measuring ranges Dependent on the chemi-
cal seal
Dependent on the chemi-
cal seal
Bus response time with Foundation Fieldbus
Ʋ cyclically approx. 10 ms