Airbox. The Kuhnke Asi Pneumatic Slave Module
Airbox Features
Airboxes are modelled on standard AS-i I/O dlaves, except they have pneumatic outputs.
- Single air supply via 8mm O/D tube. Use clean filtered (5µ) compressed air. Just push in.
- Optional auxiliary (pilot) air supply to Airbox K models. 4 mm O/D tube. Just push tube in to engage.
- 2.5 - 8 bar main valve operation (or 0 - 8 bar if a 3 bar supply is connected to the auxiliary port on Airbox K).
- Single power / signal connection using AS-Interface flat yellow cable. Vampire pins. Just push on and secure Airbox to it's base.
- Optional auxiliary power connection (black cable). Just push on.
- M12 connections (2 or 4 depending on model) to digital inputs. Just screw down.
- 8mm tube connectors to cylinders / actuators. Just push in to activate.
- A separate base, sometimes called a coupling module either Siemens K45 or K60 sizes and universal to many manufacturers.
- Either filtered silenced exhausts (IP65) or 8 mm tube connector exhausts (IP67 with all connections in use or plugged).
- Push to operate manual overrides on Airbox K
- Airboxes operate faster than most conventional valves.
Airbox Performance & Functions
| Pneumatic flow rates |
400NL/min @ 6 bar (Airbox 1 & 32)
550NL/min @ 6 bar (Airbox K) |
| Auxiliary (Pilot) Port |
Airbox K (needs separate 3 bar supply) Standard feature, option use. |
| Monostable functions |
All Airboxes |
| Bistable functions |
Airbox K (bistable versions) |
| Power consumption Airbox K |
85mA per output for 25ms, then 35mA, plus 10mA watchdog and sensor loads |
| Power consumption Airbox 1 & 32 |
65mA per output for 25ms, then 35mA, plus 10mA watchdog and sensor loads |
Valve Functionality
| Airbox 1 & 32 |
2 x 3/2 function (NC & NO) or 1 x 5/3 function. Monostable. |
| Airbox K |
2 x 4/2 function (allowing 2 x 3/2 NC or NO) or 1 X 5/3 function. Monostable and bistable versions. |
Addressing
| Airbox 1 & 32 |
Use handheld addressing tool. Airbox address is set on the tool itself if standard coupling modules (bases) are used. |
| Airbox K |
Use handheld addressing tool. Airbox K address set by connecting lead from tool to port on top of Airbox. |
Note that replacing an Airbox on an existing installation does not normally require an addressing tool. A new Airbox has an address code 0 when leaving the factory. Your AS-i Master plc will allocate a "missing" code to a new replacement with an address code of 0. Only replace one Airbox at a time!.
Fitting
4 screws to base of Airbox 1 & 32. Single screw fixing to base of Airbox K (assembly and replacement is vers easy and quick).
Airbox Hints
- With fast acting valves and 8mm OD connections an Airbox will directly operate much larger cylinders
than its specification or size suggests. Install as near to your actuator as possible. Stops,
lifts, blocks and diverts up to 40 or 50mm bore (short stroke) will easily function.
- Airbox can act as a 3/2 normally open, 3/2 normally closed, 4/2 (5/2)
monostable, or bistable, or 5/3 valve. With the exception of bistability
all Airboxes can be programmed and connected to perform any of these classic
pneumatic functions. The bistable Airbox K can do them all!
- If an Airbox fails, the diagnostics will show the precise address.
Replacement will take less than one minute (every connection is push or screw).
Your system can be re-booted instantly as AS-Interface software will recognise
the replacement device and re-assign the address code automatically
- Standard Airbox is not A/B addressable and can be used on any AS-i system (V2.0 and above). EASi Airbox models (2007) are A/B addressable for AS-i systems V2.1 & V3.0. Please see full list of part numbers
- Use Airbox K with an auxiliary air supply to the special 4mm top port when you have a soft start or e-stop application. Make sure this auxiliary line feeds from upstream of your soft start or dump valve.
- After an E-Stop and removal of compressed air power your system may continue some actuator / pallet / product movement which in turn may trip a sensing device. On the resumption of power the software may then call for a valve to change status before compressed air pressure has time to rebuild. If this is likely choose Airbox K and use the pilot(auxiliary air) facility. Remember to port it separately!
- For detailed information on functions and operation, please download the 70 page guide (E705) in the support/download section of this site.
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