AC2611 - Electronic module IFM - Free user manual and instructions

Product type	AS-i slave electronic module
Brand	IFM
Model	AC2611
Power supply	24 V ±20% via AS-i network or external PELV
Maximum consumption	60 mA
Output type	Configurable current or voltage (P0)
Voltage measurement range	0...10 V
Current measurement range	0...20 mA or 4...20 mA
Resolution	6, 9, 12 or 15 bits
Acquisition time	< 28 ms
Max number of modules per master	31
Min load resistance voltage output	> 10 kΩ
Max load resistance current output	< 500 Ω
Ramp function	Enablable/disableable via parameter P2
Transmission	Single or double (parameter P3)
LED indicators	AS-i supply (green), auxiliary supply (green), internal fault (red), output fault (red)
Addressing	Free address 1 to 31 (default 0)
Mounting	35 mm rail or panel (accessory E70119)
Galvanic isolation	Up to 500 V with respect to AS-i system
Protection	PELV
Accessories	LCD display E70127, addressing unit

Frequently Asked Questions - AC2611 IFM

How to configure the output as voltage or current?

Configuration is done via the parameterization bit P0. Set P0 to 1 for voltage output (0...10 V) or to 0 for current output (0/4...20 mA). The shunts (8) must be positioned accordingly.

What is the resolution of analog values?

Resolution is configurable to 6, 9, 12 or 15 bits. It is defined by the choice of AS-i master and the function block used.

How to address the AC2611 module?

Connect an addressing unit to terminals A+ (brown) and A- (blue) via a cable connector. Remove the addressing shunt (4) and assign a free address between 1 and 31. Default address is 0.

What do the LEDs on the module mean?

Green LED (1): AS-i supply OK. Red LED (3) on: internal fault (e.g., calculation error). Red LED (3) blinking: parameterization in progress. Green LED (6): auxiliary 24V supply OK. Red LED (7): output fault.

How to power the module?

The module can be powered via the AS-i network (24V ±20%, max 60 mA) or via an external 24V ±20% PELV supply. Selection is made via shunts (5): in place for AS-i power, removed for external power.

Can I use an external power supply?

Yes, you can use an external 24V ±20% PELV power supply. In this case, shunts (5) must be removed. Galvanic isolation from the AS-i system is valid up to 500V.

What is the ramp function?

The ramp function allows gradual variation of the output value. It is enabled or disabled via parameterization bit P2 (1 = disabled by default, 0 = enabled).

How to connect the actuator?

Never connect the actuator to ground. Use a PELV supply if external. Follow the wiring diagrams in the manual according to output type (current or voltage) and power supply (AS-i or external). Shunts must be removed or set in position when powered off.

Which accessories are available for the AC2611?

An LCD display (ref. E70127) can display the measured value independently of AS-i communication. A panel mounting kit (E70119) is available. An addressing unit is needed to configure the address.

What to do if the red LED (3) is on?

Red LED (3) on indicates an internal fault, for example a calculation error. Check parameterization and power supply. If the problem persists, consult the complete manual or contact technical support.

USER MANUAL AC2611 IFM

Function and features

The AS-i module operates as a slave with a bidirectional data exchange in the AS-i network (AS-i profile: S 7.1).

• Current or voltage output
• Max. number of modules per master: 31
• Minimum load resistance voltage measurement >10k
  Maximum load resistance current measurement < 500
• Time for converting the measured value in the slave < 28ms
• Actuator supply via the AS-i network (internal max. 60mA, 24V ± 20% ) or external supply 24V ± 20% ; PELV
• Resolution of the analog values in steps of 6, 9, 12, 15 bits
• No calibration required by the user
  Ramp function

There are no positions to park the links.

Do not use free locations.

1: green LED (AS-i power)
2: pin block for connecting the LCD display
3: red LED (access to EEPROM)
4: link (addressing plug)
5: links (inserted: auxiliary voltage from the AS-i network) (removed: external auxiliary voltage)
6: green LED (24 V auxiliary voltage)
7: red LED (output fault)
8: link (current or voltage output)

$$ \begin{array}{l} A + = A S - i + \ A - = A S - i - \ G = \text {g r o u n d} \ O + = \text {a c t u a t o r s u p p l y} + 2 4 V \ O - = a c t u a t o r s u p p l y O V \ \begin{array}{c} V = \text {a n a l o g o u t p u t} \ \text {v o l t a g e o u t p u t} \end{array} \ \begin{array}{c} C = \text {a n a l o g o u t p u t} \ \text {c u r r e n t o u t p u t} \end{array} \ \mathrm {C O M} = \text {a n a l o g o u t p u t 0 V} \ \end{array} $$

Mounting

Mount the module onto a 35mm rail or fasten it onto a mounting device (accessories required E70119).

Electrical connection

The actuator must always be ungrounded!

If an external potential is used, it must be a PELV voltage. The electrical separation to the AS-i system is rated for 500V.

Links may only be inserted or removed with the system being disconnected.

Voltage output

Parameter setting:

P0 = 1: voltage output

P1 = 1: measuring range 0 ... 10V, resolution 0.3mV

or P1 = 0 : measuring range 0 ... 10V, resolution 1mV

Supply via AS-i External supply

Current output

Parameter setting:

P0 = 0 : current output

P1 = 1: measuring range 0 ... 20mA

or P1 = 0 : measuring range 4 ... 20mA

Current output for current sink with 24V supply

Supply via AS-i

External supply

Current output

Parameter setting:

P0 = 0 : current output

P1 = 1: measuring range 0 ... 20mA

or P1 = 0 : measuring range 4 ... 20mA

2-wire current sinks 4 .. 20 mA without intrinsic supply

Supply via AS-i External supply

2-wire current sinks 4 ... 20 mA with intrinsic supply

Parameter setting

The parameter bits must not be changed during operation.

Parameter bit	Type Designation		Description
P0 output		output signal	1* voltage output (0...10V) 0 current output (0/4..20mA)
P1 output		measuring range	1* 0...20mA (0...7FFF)hex or 0...10V (0...7FFF)hex 0 4...20mA (0...7FFF)hex or 0.10V (0...2710)hex
P2 output	ramp function	*	1* off 0 on
P3 output	data transmission		1* single transmission 0 double transmission
		* setting upon request	* default setting

After an interference individual values can be transferred incorrectly. This can be avoided by a double transmission of the output values. To do so, set the parameter bit P3 to 0.

Addressing

Connect the addressing unit to the terminals A+ and A- by means of a cable plug. Remove the addressing plug and assign a free address between 1 and 31 (factory setting is 0).

Pin connection of a cable plug: 1 = A+/brown, 3 = A-/blue Leave the addressing plug removed.

Operation

The data transmission/representation of the measured value in the host is controlled by the user program. In conjunction with the controller, the evaluation is performed by a corresponding function block (AC0314).

(If other masters are used, function blocks for the protocol 7.1 are needed).

• Green LED (1) (Power) is lit: AS-i supply voltage o.k.
• Red LED (3) is lit: internal fault, e.g. sum error
• Red LED (3) flashes: memory settings are loaded
• Green LED (6) is lit: 24V auxiliary voltage o.k.
• Red LED (7) is lit: output fault

Accessories

As an accessory a display board is available (E70127). The measured value is displayed according to the selected setting. The display is independent of the AS-i communication, the places after the comma are not displayed.

$$ A + = A S - i + $$

A- = AS-i -

G = terre