AC042A - Drill IFM - Free user manual and instructions

Product Type	AS-i Pneumatic Interface Module (AirBox)
Brand	IFM
Model	AC042A
Power Supply	26.5...31.6 V DC
Current Consumption	< 170 mA
Total Output Current	100 mA
Sensor Connection	M12 Plug-in
AS-i Connection	EMS Wiring Module
Pneumatic Connection	Legris 3000 System / 8 mm
Compressed Air Pressure	2...8 bar
Number of Inputs/Outputs	4 inputs, 2 outputs (configurable)
LED Display	Green (power), yellow (function)
Manual Override	Yes, for actuator activation
Electromagnetic Compatibility	EN 61000-4-2, contact discharge ±4 kV, air discharge ±8 kV
AS-i Addressing	Free addresses 1 to 31 (default 0)
Recommended Air Filter	5 μm
Lubrication	Possible (lubricated or dry air, consistency required)
Maintenance and Cleaning	Use filtered air; avoid dust; after initial lubrication, continue with lubricated air
Safety Instructions	Follow pneumatic system regulations; depressurize before connection; avoid electrostatic discharge
Operating Temperature	Not specified in the manual, standard industrial use

Frequently Asked Questions - AC042A IFM

How to address the AC042A module on the AS-i network?

Place the module on the addressing unit and assign a free address between 1 and 31. At delivery, the default address is 0.

What is the allowed compressed air pressure range?

The AirBox operates with compressed air from 2 to 8 bar. Peaks above 8 bar may cause permanent sealing defects.

How to connect pneumatic hoses?

Cut the hoses straight, then push them into the Legris fittings until they click. To disconnect, press the black ring while pulling the hose.

What do the LEDs on the module mean?

The green LED indicates that power via the AS-i network is present. The yellow LEDs indicate the status of outputs or functions.

How to use the manual override?

Manual override 1 activates output O-3, manual override 2 activates output O-4. Electrical control remains prioritized.

What electrostatic discharge levels are supported?

The module withstands contact discharges of ±4 kV and air discharges of ±8 kV according to EN 61000-4-2. For more severe environments, potential compensation measures are necessary.

Can I use lubricated air?

Yes, but if the device has already operated with lubricated air, it must always be supplied with lubricated air. When switching to dry air, the initial lubrication is no longer effective.

How to mount the module in a dusty environment?

It is recommended to mount the AirBox with the filter facing downwards to avoid dust accumulation.

What types of sensors can be connected?

The module has two M12 connectors for sensors, with L+ and L- power supply. Data inputs are on pins 2 and 4.

Where to find additional product information?

Visit www.ifm-electronic.com, enter the article number AC042A under 'Technical data sheet' for notes on compressed air and EMC/ESD.

USER MANUAL AC042A IFM

Top-down schematic of a device casing with multiple circular components and mounting feet (no text or symbols)

For installation and set-up follow the instructions on the use in hazardous areas.

Function and features

The AS-i AirBox is a slave in the AS-i system (AS-i profile S 7.F). It is the connection between the two dual sensors, the two pneumatic outputs and the AS-i master.

• Operating voltage 26.5...31.6V DC
• Current consumption < 170mA
  • Total current load for all inputs 100mA
• Plug-in sensor connection
• AS-i connection via EMS module lower part

- Connection to pneumatic system via push fit tube connector Legris 3000/8mm, outside calibration according to CETOP standard RP 54 P

- Operation with compressed air of 2...8bar including any pressure peaks (Pressure peaks >8bar can cause permanent leaks and irreparable damage of the AirBox).

exhaust 3 [R] I-1 I-3 I-3/4 flat cable yellow I-1/2 label I-2, AS-i PWR, O-3 I-4, O-4 pneumatic outputs O-3/O-4 compressed air 1 [R] manual override 1 for O-3 manual override 2 for O-4

Mounting

Address assignment by means of the addressing unit.

Fix the module onto the addressing unit. Assign a free address between 1 and 31; the factory preset is 0.

In a dusty environment the AirBox can be mounted with the filter facing downwards.

Compressed air

Adhere to the safety regulations and provisions for the installation of pneumatic systems. Switch off pressure.

Connect the compressed air supply 1 (P), the pneumatic outputs (O-3, O-4) and, if necessary, the exhaust 3 (R) to the pneumatic system. Cut the connection tube straight and push it into the tube fitting until you can feel the tube latch.

Removal of the tubes

To remove the tubes, push the black ring and pull out the tube at the same time.

The manual overrides can operate the pneumatic outputs. Connect the compressed air supply to the AS-i AirBox. If you then push the manual override 1, the output O-3 is triggered. If you push the manual override 2, the output O-4 is triggered.

Electromagnetic compatibility (EMC)

The AirBox is rated for operation in industrial environments. The test of the electrostatic discharge was carried out in accordance with EN 61000-4-2 with the following test levels:

• Contact discharge ±4kV
• Air discharge ±8kV

Special applications such as the conveying and distribution of bulk material can generate higher electrostatic charges.

To avoid electrostatic discharge the following remedial actions are possible, among others:

• Equalisation of potential according to the installation instructions

• Separate laying of

• signal and bus cables

• equipotential bonding conductors
• power cables

- Physical separation of the AirBox and all cables from all parts carrying or discharging electrostatic charges

If these discharges are not avoided there is the danger of:

• injury to/incapacitation of operators and maintenance staff
• spark formation
• damage to the AirBox
  • damage to the electrical equipment

The electrical triggering has priority over the mechanical triggering.

M12 socket	pin
sensor supply L+	1
sensor supply L- 3
data input I 4
data input II 2

data bit D0	D1 D2 D3
inputs/outputs	I-1 I-2 I-3/O-3	-4/O-4
socket I-1/2	I-1/2 I-3/4 I-3/4
p	i	n	4	2

Operation

Check the safe functioning of the unit. Display by LEDs:

• LED green: supply voltage via the AS-i system
• LEDs yellow: function display

For trouble-free operation sufficiently treated air must be used (filtered air 5μm, lubricated ^1) or not lubricated). Once the AirBox has been operated with lubricated air, it always has to be operated with lubricated air as the oil removes the initial lubrication.

1) You can find further notes on compressed air and EMC/ESD for the AirBox at www.ifm-electronic.com. Enter the article number of your AirBox on the start page under "Data sheet direct". You receive the additional product information by clicking on "Additional Data"