Festo VPPI S1 Series, Operating Instructions

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Characteristic pneumatic values
VPPI-…-0L10H-… 0 … 1.3 0 … 13 1.0 … 1.2 10 … 12
VPPI-…-0L12H-… 0 … 1.3 0 … 13 1.2 … 1.3 12 … 13
Product type Input pressure at (3) (vacuum) Operating pressure at (3)
[MPa] [bar] [MPa] [bar]
VPPI-…-1V0H-… –0.1 … 0 –1 … 0 –0.1 … 0 –1 … 0
VPPI-…-1V1H-… –0.1 … 0 –1 … 0 –0.1 … 0 –1 … 0
Product type Pressure regulation range 3) at (2) –
[MPa] [bar]
VPPI-…-1V0H-…
4)
0 … –0.1 0 … –1
VPPI-…-1V1H-… –0.1 … +0.1 –1 … +1
VPPI-…-0L2H-… 0 … 0.2 0 … 2
VPPI-…-0L6H-… 0 … 0.6 0 … 6
VPPI-…-0L10H-… 0 … 1.0 0 … 10
VPPI-…-0L12H-… 0 … 1.2 0 … 12
1) The valve can be operated at an input pressure within the specified range. It must be noted here that the
specified control quality is only fulfilled with a permanent supply within the operating pressure range and
that the control pressure can reach the maximum available input pressure.
2) The specified control quality is only achieved if there is a permanent operating pressure supply at the
valve within the specified range.
3) Active regulation is only from a setpoint value of 1% FS, below which the valve is at zero point suppres-
sion.
4) For variants VPPI-...-1V0H-... 0% corresponds to setpoint value 0 bar and 100% to setpoint value –1 bar.
Tab. 11: Characteristic pneumatic values
Normal position
Valve variant Normal position (de-energised state)
VPPI-…-3-… Working pressure (2) blocked.
VPPI-…-4-… Working pressure (2) is exhausted to the pressure at the exhaust air port (3).
Tab. 12: Normal position
Cable break detection
Valve variant Setting ‘Input
min’ Cable break detection
VPPI-…-A4-…
<
2 mA Cable break detection inactive.
³ 2 mA Cable break detection active. At analogue input values below 2 mA
the ‘Cable break’ error is displayed and the valve moves to the
normal position.
VPPI-…-V1-…
<
500 mV Cable break detection inactive.
³
500 mV Cable break detection active. At analogue input values below
500 mV the ‘Cable break’ error is displayed and the valve moves
to the normal position.
Tab. 13: Cable break detection
Zero point suppression
Valve variant Setting ‘Pressure min’ Response with setpoint value
<
0.7% Full scale
VPPI-…-...L…H-… 0 MPa Exhaust to 0 bar and keep the exhaust open.
> 0 MPa Active control on ‘Pressure min’.
VPPI-…-1V1H-… –0.1 MPa Valve moves to normal position.
>
–0.1 MPA Active control on ‘Pressure min’.
VPPI-…-1V0H-… – Active control on ‘Pressure max’.
Tab. 14: Zero point suppression
Setpoint values
<
0.7% Full scale above the minimum input value (‘Input min’) are
interpreted as the lowest input value in order to suppress noise at the input signal
è Fig. 5. Depending on the valve variant and the minimum input pressure, there
may be a special response in this area
è
Tab. 14 Zero point suppression.
4
1 2
3
Fig. 5: Zero point suppression
1
Minimum input value + 0.7% FS
2 Minimum input value
3
Minimum pressure/vacuum
4 Zero point suppression
Characteristic electrical values
Nominal operating voltage [V DC] 24
Operating voltage range [V DC] 21.6 … 27.6
Nominal current [mA] 150
Current consumption [mA] £ 525
Permissible signal line length [m]
£
30
Setpoint input
Setpoint value input
VPPI-…-V1-…
[V] 0 … 10
VPPI-…-A4-… [mA] 4 … 20
PWM input voltage
Characteristic electrical values
VPPI-…-V1- 24 V DC (type 1 in accordance with DIN EN 61131)
PWM input frequency
VPPI-…-V1-…
[Hz] 200 … 800
Input resistance
VPPI-…-V1-...
[k
W
] 100
VPPI-...-A4-... [k
W
] 0.3
Actual value output
Output current
[mA]
£
25
Analogue output
VPPI-…-V1-…
[V] 0 … 10
VPPI-…-A4-… [mA] 4 … 20
Tab. 15: Characteristic electrical values
Control characteristics
1)
Linearity 0.9% FS (full scale)
Hysteresis 0.4% FS
Reproducibility 0.4% FS
Total accuracy 1.1% FS
Temperature coefficient 0.02/K
1) Maximum deviation, characteristic values determined at room temperature in accordance with ISO 10094.
Linearity refers to the ideal characteristic curve.
Tab. 16: Control characteristics