AC2501 - Controller IFM - Free user manual and instructions

Product type	AS-i module (controller)
Brand	IFM
Model	AC2501
AS-interface version	2.1
AS-i profile	S-0.F.E
Maximum number of modules per master	31
Dimensions (L x W x H)	Approx. 120 x 80 x 40 mm
Weight	Approx. 200 g
Power supply	Via AS-i network (yellow cable)
Electrical connection	M12 sockets for actuators; sensors supplied via AS-i
Address range	1A to 31B (default address: 0)
Main functions	Connection of sensors/actuators, function monitoring, LED diagnostics, infrared addressing
LED displays	Yellow (outputs), green (power), red (communication/peripheral)
Protection rating	IP67 (with plugs on unused sockets)
Mounting	On wiring base, tightening torque 0.8 Nm
Maintenance and cleaning	Clean with a dry cloth; do not use aggressive products
Safety	Do not remove the addressing plug under power; disconnect the master before infrared addressing
Spare parts and repairability	Wiring bases (AC5010, AC5000), protective caps (AC3004), addressing unit (AC1144), addressing cables (E70213, E70211)
General information	Manual available for download; datasheet at www.ifm-electronic.com

Frequently Asked Questions - AC2501 IFM

How to address the AC2501 module?

Use the AC1144 addressing unit. If the module is mounted on the AC5010 base (with addressing plug), use the E70213 cable. Otherwise, first address the module via AC1144, then mount it. You can also use infrared addressing with the E70211 cable, after disabling AS-i communication (disconnect the master) and powering the slaves.

What does a permanently lit red LED mean?

A lit red LED 2 indicates an AS-i communication error: the slave is not participating in normal data exchange (e.g., address 0). A lit red LED 4 indicates a switched output fault. Refer to the LED table in the manual.

What is the tightening torque for mounting?

The recommended tightening torque for mounting the module on the wiring base is 0.8 Nm.

How to configure function monitoring inputs?

For each input, set the parameter bit: 1 (default) for active high logic state (NO), 0 for active low (NC). In case of a fault, the red LED of the input lights up and the FAULT LED flashes.

What types of connectors are used?

Actuators are connected via M12 sockets. Sensors are powered via the AS-i network (yellow cable). Do not connect inputs to an external potential.

Can I use infrared addressing?

Yes, the AC2501 module supports infrared addressing via the AC1144 addressing unit and the E70211 cable. During addressing, AS-i communication must be disabled (disconnect the master) and the slaves must be powered.

How to test proper module operation?

Check the LEDs: the green LED indicates power is OK, the yellow LED lights up when outputs are switched. In case of an error, red LED 2 lights up (communication) or flashes (peripheral). You can also use diagnostics via the AS-i master.

What accessories are needed for addressing?

Recommended accessories are: AC1144 addressing unit, E70213 addressing cable (for AC5010 base) or E70211 infrared cable, and AC5010 or AC5000 wiring bases.

What to do in case of a short circuit?

In case of a short circuit or overload of the input supply, the AS-i master (version 2.1) receives a signal via the internal 'peripheral fault' bit. LED 2 flashes. Cut power and correct the fault before restoring power.

How to protect unused connectors?

Cover unused sockets with protective caps (ref. AC3004) to ensure the IP67 protection rating.

USER MANUAL AC2501 IFM

Function and features

AS-i profile: S-0.F.E
maximum number of modules per master: 31
- AS-interface version 2.1

Operating and display elements

Mounting

Mount the module onto the wired module lower part of the AS-i network, tightening torque 0.8Nm.

Technical data

You can download the data sheet from the Internet if required (www.ifm-electronic.com).

Electrical connection

Connect the plugs of the actuators to the M12 sockets. The sensors are supplied with voltage via the AS-i network. Do not connect the inputs to an external potential. Cover the sockets not used with the protective caps (AC3004) to guarantee protection rating IP67.

Addressing

Assign a free address between 1A and 31B. At the factory the address is set to 0.

Do not remove the addressing plug while live.

Addressing with the addressing unit AC1144

If the mounted and wired module is used with the FC lower part AC5010 (with addressing socket), it can be addressed via the addressing cable (E70213).

If it is used with the FC lower part AC5000 (without addressing socket) the module must first be addressed via the addressing unit AC1144 and then mounted onto the lower part.

Infrared addressing

The AS-i module also offers the option of infrared addressing with the addressing unit AC1144.

The AS-i communication (yellow cable) must be switched off during the infrared addressing. To do so, disconnect the master.

Supply the slaves with voltage via the AS-i power supply. Addressing is carried out via the IR addressing cable E70211.

When the ifm AS-i power supplies SL are used the communication can be deactivated via a plug on the power supply.

Function check inputs

In case of a fault the high or low activity (NO or NC principle) of the function check inputs can be set separately for each input via a parameter bit. In case of a fault the red LED of the corresponding input lights and in addition LED 2 (FAULT) flashes.

Switch	Parameter bit	Fault			No error message
		input FKT	FKT LED Fault LED		input FKT	FKT LED	Fault LED
high-active	1 (default)	high	on	on (flashing)	low	off	off
low-active	0	low	on	on (flashing)	high	off	off
FKT function check input I1...I4

Operation

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

• LED 1 yellow: output switched
• LED green: voltage supply o.k.
• LED 2 red is lit: AS-i communication error, slave does not participate in the "normal" data exchange, e. q. slave address 0
• LED 2 red flashing: peripheral fault, e.g. sensor supply over loaded or shorted or fault on the function check input
• LED 3: infrared receiver
• LED 4 red is lit: fault - output switched (function check input)

Overload and short circuit of the input supply are signalled to the AS-i master (version 2.1) via the "peripheral fault" flag in the status register.