Festo VPPI S1BT Series, Руководство пользователя

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18 Festo — VPPI-...-S1BT — 2021-11
Commissioning
8.2.7 ‘Set point’ parameter group
Parameter Contents Description
‘Input type’ ‘Analog’/‘Digital’
–
‘Analog’: the setpoint pressure is specified as an
analogue voltage/current value via the set value
input.
–
‘Digital’: a digital 24 V signal is entered via the
setpoint input.
‘Maximum analog
setpoint’ e.g. 5 V Upper limit of the analogue setpoint value range.
The ‘Minimum analog setpoint’
>
‘Maximum analog
setpoint’ setting is not recommended.
‘Minimum analog
setpoint’ e.g. 0 V Lower limit of the analogue setpoint value range.
The ‘Minimum analog setpoint’
>
‘Maximum analog
setpoint’ setting is not recommended.
‘Pressure value
001’ e.g. 1.00 bar Setpoint value, if value of the digital inputs = 001
‘Pressure value
010’ e.g. 2.00 bar Setpoint value, if value of the digital inputs = 010
‘Pressure value
011’ e.g. 4.00 bar Setpoint value, if value of the digital inputs = 011
‘Pressure value
100’ e.g. 5.00 bar Setpoint value, if value of the digital inputs = 100
‘Pressure value
101’ e.g. 7.00 bar Setpoint value, if value of the digital inputs = 101
‘Pressure value
110’ e.g. 8.00 bar Setpoint value, if value of the digital inputs = 110
‘Pressure value
111’ e.g. 10.00 bar Setpoint value, if value of the digital inputs = 111
Tab. 10: Input values
If the ‘Digital’ input is selected, one of 8 setpoint values is specified via three 24 V inputs. For this, the
three inputs are interpreted as a binary number with 3 bits.
The assignment is as follows:
• Setpoint value (+): DI0 or least significant bit
• Setpoint value (-): DI1
• Actual value output: DI2 or most significant bit
The value 000 means 0 bar, the remaining 7 values can be set in ‘Set point’
è Tab. 4 Pin allocation for
plug M12, 5-pin, A-coded.