Festo VPCB T22Series User manual

Translation of the original instructions
1 Further applicable documents
All available documents for the product èwww.festo.com/pk.
User documentation Name, type Contents
Instructions Connection set, VABS-P15-S-B6 Assembly
Instructions Control element, VAOH-P15-H13 Operation
Instructions Balancer kit, YHBP-B Assembly and installa-
tion
Instructions Sensor interface, CASB-MT-D3-R7 Assembly
Tab. 1 Documentation on the product
2 Safety
2.1 Safety instructions
– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Take into consideration the ambient conditions at the location of use.
– Prior to mounting, installation and maintenance work: Switch off power sup-
ply and secure it from being switched back on.
2.2 Intended use
The purpose of the valve unit is to control a pneumatic cylinder in balancer applic-
ations.
The product is intended for use in industrial environments.
2.3 Training of skilled personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel.
The specialized personnel must be familiar with the installation and operation of
electrical and pneumatic control systems.
3 Further information
– Accessories èwww.festo.com/catalogue.
4 Service
Contact your regional Festo contact person if you have technical questions
èwww.festo.com.
5 Product overview
5.1 Functional principle
The valve unit consists of a 3/3-way proportional-pressure regulator and
two2/2-way valves. The purpose of the 3/3-way proportional-pressure regulator
is to regulate the cylinder pressure and the cylinder position. The two2/2-way
valves serve as non-return valves for shutting off the cylinder volume in the event
of an error (loss of voltage, fall in pressure, too high travel speed, etc.). For
increased safety requirements, the valve unit can be equipped with switching pos-
ition sensing for the non-return valves (VPCB-...-T22-M).
VPCB-...-T22 VPCB-...-T22-M
Tab. 2 Pneumatic circuit symbol
5.2 Product design
1Connection for switching position
sensing (optional)
2Connection for controller
3Earth connection
4Connection (3) for exhaust air
5Connection (1) for compressed
air
6Manual ventilation
7Installation option for connection
set VABS-P15-S-B6
8"Status" LED
9“Power/Error” LED
Fig. 1 Connections
10 Connection for displacement
encoder system/sensor interface
11 Connection for control element
12 Connection (2) for working air
(balancer cylinder)
13 Non-return valve 1
14 Non-return valve 2
Fig. 2 Connections
6 Mechanical installation
1. Make sure there is sufficient space for the connecting cable and tubing con-
nections.
ÄThis will prevent kinks from forming in the connecting cables and the
tubing.
2. Place the valve as close to the consumer as possible.
ÄThis leads to better control response.
3. Attach the valve using the 4 screw holes M5 (10mm deep) under the valve or
on the valve side with the pneumatic connections (1) and (3). Tightening
torque: £ 5Nm
7 Installation
7.1 Pneumatic installation
1. Attach the tubing to the following connections:
– Connection (1) for compressed air
– Connection (2) for working air (balancer cylinder)
– Connection for control element è 1 Further applicable documents
2. Fit a silencer at the exhaust air connection (3) or provide for ducted exhaust
air .
8091491
VPCB-...-T22
Valve unit
8091491
2018-12
[8091493]
Instructions|Operating,Installation
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
[phone]
www.festo.com

NOTICE!
Pay attention to compressed air quality.
Damage to property or loss of function from lubricated compressed air.
• Operate product only with unlubricated compressed air.
• Observe the requirements for compressed air quality èTechnical data.
7.2 Electrical installation
WARNING!
Risk of injury due to electric shock.
• For the electric power supply, use only PELV circuits that ensure a reliable
electric disconnection from the mains network.
• Observe IEC60204-1/EN60204-1.
1. Ground the shielding of the connecting cable on the cable end that is furthest
from the valve.
2. Install electrical connecting cables without squeezing, kinking or stretching.
3. Mount the earthing cable with self-tapping screw and toothed disc to the
earth connection of the valve.
4. Screw the electrical connecting cable for CAN-BUS to the 5-pin M12 plug con-
nector. Tightening torque: £ 0.4Nm.
The maximum permitted length of the electrical connecting cable for the CAN-
BUS is 30m.
5. Remove cover cap and screw electrical connecting cable for the displacement
encoder system onto the 8-pin M12 socket. Tightening torque £ 0.4Nm.
The maximum permitted length of the electrical connecting cable for direct
connection with the displacement encoder system of the DNCI is 1.5m.
The maximum permitted length of the electrical connecting cable to the
sensor interface is 2m.
6. Connect the electrical connecting cable for non-return valve 1 and 2.
7. Connect the switching position sensing for non-return valve 1 and 2 (option-
al).
Connection Pin Function
1 Shield
2 24VDC
3 0VDC
4 CAN_H
5 CAN_L
Tab. 3 Pin allocation for plug M12, 5-pin
Connection Pin Function
1 5VDC
2 0VDC
3 Sin +
4 Sin –
5 Cos –
6 Cos +
7 Shield
8 Not connected
M12 Shield
Tab. 4 Pin allocation for socket M12, 8-pin
8 Commissioning
Requirements:
– The valve must be assembled.
– The pneumatic and electrical installation must be complete and checked.
1. Check the operating conditions and limit values èTechnical data.
2. Switch on the power supply.
3. Switch on the compressed air supply.
9 Cleaning
Clean the outside of the product with a soft cloth. Do not use aggressive cleaning
agents.
10 Malfunctions
10.1 Diagnostics via LEDs
LED Product desig-
nation
Meaning
LED1
(green)
Pwr/Err
LED2
(off)
Status
LED1 lights up green, LED2 is off:
– Supply voltage is connected
LED1
(green)
Pwr/Err
LED2
(red)
Status
LED1 lights up green, LED2 lights up red:
Error status
–Overvoltage, power supply >26.4VDC
– Coil temperature over 100°C
– Control deviation of the position controller too large
– Broken cable for displacement encoder system
LED1
(green)
Pwr/Err
LED2
(red)
Status
LED1 lights up green, LED2 flashes red:
Warning
– Supply voltage at the limit of permissible range
– Coil temperature over 80°C
LED1
(off)
Pwr/Err
LED2
(red)
Status
LED1 off, LED2 lights up red:
–Undervoltage, power supply<21.6VDC
Tab. 5 LED
10.2 Diagnostics via controller
The fault messages of the valve are sent to the higher-order controller (e.g. CECC-
D-BA).
10.3 Error status
The following valve errors lead to a switch-off in the power stage:
– Coil temperature too high
– Valve is jammed
– Hardware interface to the actuator is faulty
–Supply voltage is too low when switching on the valve (<18VDC)
When switching off the power stage, the valve has an undefined opening cross
section.
With all other errors, the valve is in the mid-position and pressure is constrained.
Communication and sensors remain active.
The pressure in the cylinder can be constrained by shutting off the two non-return
valves.
11 Conversion to direct pressure measurement on the cylinder
The mounting of the connection set for direct measurement of working pressure
on the cylinder is described in the instruction manual VABS-P15-S-B6.
12 Disassembly
1. Switch off operating voltage.
2. Switch off compressed air supply.
3. With a pin or screwdriver, press the manual ventilation and ventilate the sys-
tem è Fig.1.
ÄThe air volume trapped in the cylinder and in the connecting cables is
exhausted.
4. Remove electrical connecting cables.
5. Remove compressed air lines.
6. Dismantle the product.
13 Disposal
ENVIRONMENT!
Send the packaging and product for environmentally sound recycling in accord-
ance with the current regulations èwww.festo.com/sp.
14 Technical data
Property Specification/value
Valve function 3/3-way proportional pressure regulator
Mounting position Any
Product weight [g] 1550
Dimensions
Width [mm] 78

Property Specification/value
Height without plug [mm] 150
Length [mm] 70
Operating medium
Operating medium Compressed air to ISO8573-1:2010 [6:4:4]
Note on the operating medi-
um
Lubricated operation not possible
Maximum particle size 5µm
(use 5µm filter)
Electrical data
Nominal operating voltage [VDC] 24
Operating voltage range [VDC] 21.6…26.4
Permissible residual ripple of
operating voltage
[%] 5
Maximum current consump-
tion
[A] 1.2 (momentary)
Operating and environmental conditions
Operating pressure [bar] 4…8
Ambient temperature [°C] 0…50
Storage temperature [°C] –20…+70
Degree of protection IP65 (fully installed)
CE marking (declaration of
conformity
èwww.festo.com/sp)
In accordance with EU-EMC Directive1)
KC marking KC EMC
Resistance to vibration/shock resistance (to IEC 60068)
Note Explanation of the severity levels (SG)
è Tab. 7 Features of severity level (SL)
Vibration (part 2 - 6) SG2
Shock (part 2 – 27) SG2
Materials
Housing Anodised wrought aluminium alloy
Screws Galvanised steel
Seals FPM, HNBR, NBR
Piston Aluminium, ematal coated
Actuator Steel, copper, HNBR
1) The component is intended for industrial use. Outside of industrial environments, e.g.in commercial and
mixed-residential areas, it may be necessary to take measures to suppress interference.
Tab. 6 Technical data
Features of severity level (SL)
Vibration load
Frequency range [Hz] Acceleration [m/s2] Deflection [mm]
SL1 SL2 SL1 SL2 SL1 SL2
2…8 2…8 – – ±3.5 ±3.5
8…27 8…27 10 10 – –
27…58 27…60 – – ±0.15 ±0.35
58…160 60…160 20 50 – –
160…200 160…200 10 10 – –
Shock load
Acceleration [m/s2] Duration [ms] Shocks per direction
SL1 SL2 SL1 SL2 SL1 SL2
±150 ±300 11 11 5 5
Continuous shock load
Acceleration [m/s2] Duration [ms] Shocks per direction
±150 6 1000
Tab. 7 Features of severity level (SL)