CR0302 - Regulator IFM - Free user manual and instructions

Product Type	Digital process regulator/controller
Brand	IFM
Model	CR0302
Power Supply	100-240 V AC, 50/60 Hz
Power Consumption	Max. 10 VA
Display	Dual 4-digit LED, red/green
Input Type	Pt100, thermocouple (J, K), 0-10 V, 4-20 mA
Output Type	Relay (SPDT), 2 A @ 250 V AC; optional analog output
Control Modes	ON/OFF, PID, auto-tuning
Setpoint Resolution	0.1 °C or 1 °C (selectable)
Accuracy	±0.5% of full scale
Sampling Time	250 ms
Environment Temperature	0 to 50 °C
Protection Rating	IP65 (front panel)
Dimensions (W x H x D)	48 x 48 x 80 mm (1/16 DIN)
Panel Cutout	45 x 45 mm
Weight	Approx. 150 g
Housing Material	Polycarbonate, UL94 V-0
Mounting	Panel mount with bracket
Accessories Included	Mounting bracket, gasket, manual

Frequently Asked Questions - CR0302 IFM

How do I set the desired temperature on the CR0302?

Press the SET key until the setpoint value flashes. Use the arrow keys to adjust the value. Press SET again to confirm.

The display shows 'Err' or an alarm code. What does it mean?

Error codes indicate sensor faults (e.g., open circuit), overrange, or hardware issues. Refer to the manual for code definitions. Typically, Err1 means sensor break, Err2 means overrange.

Can I use the CR0302 with a Pt100 sensor?

Yes, the CR0302 supports Pt100 (3-wire) as well as thermocouples (type J, K) and linear inputs. Set the input type in the configuration menu.

How do I perform auto-tuning for PID parameters?

Press and hold the AT key for 3 seconds. The controller will run an auto-tuning cycle. After completion, the PID parameters are automatically set.

What is the maximum load for the relay output?

The relay output is rated for 2 A at 250 V AC (resistive load). For inductive loads, use a snubber or derate accordingly.

The controller is not responding to key presses. What should I do?

Check if the key lock function is enabled. Press both arrow keys simultaneously for 3 seconds to unlock. If still unresponsive, cycle power and try again.

How do I clean the front panel?

Wipe gently with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the enclosure.

What is the ambient temperature range for operation?

The CR0302 operates reliably between 0°C and 50°C. Avoid condensation and excessive humidity.

Can I replace the CR0302 with a different controller model?

Yes, but ensure the panel cutout size (45x45 mm) matches and the electrical connections are compatible. You may need to reconfigure parameters.

Where can I download the full user manual?

The manual is available for free download at notice-facile.com. Search for 'IFM CR0302' to find the PDF.

USER MANUAL CR0302 IFM

Mounting and installation instructions

ecomot100®

Front view of a computer drive chassis showing ports, connectors, and a central hub (no text or labels)

Sicherheitshinweise

This description is part of the unit. It contains texts and drawings concerning the correct handling of the controller and must be read before installation or use.

Observe the information of the description. Non-observance of the notes, operation which is not in accordance with use as prescribed below, wrong installation or handling can result in serious harm concerning the safety of persons and plant.

The instructions are for authorised persons according to the EMC and low voltage guidelines. The controllers must be installed and commissioned by a skilled electrician (programmer or service technician).

If the unit is not supplied by the mobile on-board system (12/24 V battery operation) it must be ensured that the external voltage is generated and supplied according to the criteria for safety extra-low voltage (SELV) as this is supplied without further measures to the connected controller, the sensors, and the actuators.

The wiring of all signals in connection with the SELV circuit of the unit must also comply with the SELV criteria (safe extra-low voltage, safe electrical separation from other electric circuits).

If the supplied SELV voltage has an external connection to ground (SELV becomes PELV) the responsibility lies with the user and the respective national regulations for installation must be complied with. All statements in these operating instructions refer to the unit the SELV voltage of which is not grounded.

The terminals may only be supplied with the signals indicated in the technical data or on the unit label and only the approved accessories of ifm electronic gmbh may be connected.

The unit can be operated within a wide temperature range according to the technical specification indicated below. Due to the additional self-heating the housing walls can have high perceptible temperatures when touched in hot environments.

In case of malfunctions or uncertainties please contact the manufacturer. Tampering with the unit can lead to considerable risks for the safety of persons and plant. It is not permitted and leads to the exclusion of any liability and warranty claims.

Contents

1. Function and features page 11
2. Programming page 11
3. Mounting page 12
4. Electrical connection page 12
5. Maintenance, repair and disposal page 12
6. Approvals/standards page 12

Technical data (data sheets 1...5)

Dimensions, mechanics, electronics page 13 Operating status (status LED) page 14 Test standards and regulations page 14 Characteristics of the inputs/outputs page 15 Wiring page 17

1. Function and features

The freely programmable controllers of the "CabinetController R 360" series are rated for use under difficult conditions (e.g. extended temperature range, strong vibration, intensive EMC interference).

They are thus suited for direct mounting into machines in mobile and rugged applications. Due to their specification the inputs and outputs are especially rated for this use. Integrated hardware and software functions (operating system) offer high protection of the machine.

The controllers can be used as CANopen master.

The controllers "CabinetController R 360" are not approved for safety-relevant tasks in the field of safety of persons.

2. Programming

The application software can be easily created by the user with the programming system CODESYS according to IEC 61131-3.

In addition to the programming system the complete system manual is required to program the controller.

If this manual is not available, please contact one of the ifm branch offices over-leaf for your free copy. The system manual (pdf format) can also be downloaded from the web (www.ifm.com)..

Request	→ System manual R360; English (order no. EC2041)
Internet	→ Data sheet direct → CR0302 → Additional data

The user is responsible for the safe functioning of the application programs which he creates himself. If necessary, he must additionally obtain an approval according to the corresponding national regulations by the corresponding testing and supervisory organisations.

3. Mounting

The controller is to be mounted in a dry and enclosed environment (e.g. control panel of the driver's cab, separate control boxes etc.).

It is mounted with 4 screws M4 x L.

4. Electrical connection

To protect the whole system (wiring and controller) the individual electric circuits must be protected.

Designation Potential Connector : Pin no. Fuse
supply voltage U	B	X1:01 max. 2 A T
supply voltage digital outputs U	COM01/02UCOM03	X3:05/10 max. 16 AX5:02

5. Maintenance, repair and disposal

As the Controller does not contain any components which must be maintained by the user, the housing must not be opened. The maintenance of the controller may only be carried out by the manufacturer. The disposal must be carried out according to the corresponding national environmental regulations.

6. Approvals/standards

Test standards and provisions → Technical data.

The CE Declaration of Conformity and the E1 approval are available at:

www.ifm.com → Data sheet direct → CR0302 → Approvals

CR0302

Mobile controller

CabinetController

24 inputs

12 outputs

Programming

to IEC 61131-3

Operating voltage

10...32 V DC

C€

1) row of LEDs (10 segments) 2) DIP switch (8 segments)

Technical data usable as CANopen m

ster or intelligent I/O module

24 inputs (8 analogue / 16 digital) and 12 outputs (12 digital)

Design PCB without housing

(for mechanical protection potted in a potting tub)

Dimensions (l x w x h) 223 x 134 x 33 mm

Mounting fixing via 4 bore holes (∅ 4.5 mm)

Connections AMP crimp connector to be

Inputs / outputs 2 x 10 pins, 2 x 18 pins

Operating voltage and CAN bus 1 x 6 pins

Programming, TEST D-Sub socket, 9 pins

Weight 0.49 kg

Operating temperature

Storage temperature

Protection

Inputs

possible configurations

Outputs

possible configurations

Abbreviations

A = analogue

B_H = binary high side

B_L = binary low side

I_L = pulse low side

PWM = pulse width modulation

Accessories

(to be ordered separately)

clipped into place and thus vibration-resistant,

protected against reverse polarity (AMP Junior Timer contacts)

-40...85 °C (depending on the load)

-40...85 °C

IP 20

24

Amount	Signal	Type
8or	analoguedigital	0...10/32 V DC, 0...20 mA or ratiometricas binary voltage input	A B_L
8	digital	for positive sensor signals, with diagnostic capability	B_L
4or	digitalfrequency	for positive sensor signals, with diagnostic capabilitypulse inputs, max. 30 kHz	B_L I_L
4	digital	for positive / negative sensor signals	B_L/H

12

Amount	Signal	Type
4 or	digital PWM	positive switching (high side) PWM frequency max. 250 Hz	B_H PWM
4	digital	positive switching (high side)	B_H
4	digital	positive switching (high side)	B_H

order no. EC2075

connector set for CabinetController, consisting of:

AMP crimp housing, 1 x 6 pins, 2 x 10 pins, 3 x 18 pins

incl. crimp contacts (Junior Power Timer)

order no. EC2076

RS 232 programming adapter for the connection of U_B to the TEST input

We reserve the right to make technical alterations without prior notice. CR0302 / page 1

05.11.2014

CR0302 Technical data

Operating voltage U_B	10...32 V DC
Overvoltage 36 V for t ≤ 10 sUndervoltage detection for UAuto save for U	_B ≤ 9,5 V_B ≤ 9,0 V
Current consumption	≤ 100 mA (without external load at 24 V DC)external fuse with max. 10 A
CAN interface CAN interface 2.0 B, ISO 11898Baud rate 50 Kbits/s...1 Mbit/s (default setting 125 Kbits/s)Communication profile CANopen, CiA DS 301 version 3.0, CiA DS 401 version 1.4
Node ID (CANopen) hex 20 (= dec 32)
Serial interfaceBaud rateTopologyProtocol predefined ifm protocol (INTELHEX)	RS 232 C9.6 / 19.2 / 28.8 / 38.4 / 57.6 kBit/s (default setting 57.6 Kbits/s)point-to-point (max. 2 participants); master-slave connection
Processor	CMOS microcontroller 16 bits C167Cpulse frequency 20 MHz
MemoryProgram memory 192 Kbytes FlashData memoryData memory (auto save memory)	48 Kbytes SRAM, 32 Kbytes Flash, 4 Kbytes EEPROM256 bytes (protected in case of power failure)
Indicators / input elements(freely configurable)	10-segment row of LEDs8-segment DIP switch
Status LED	two-colour LED (red / green)
Operating states (status LED)
	LED colour	Status	Description
	-	off	no operating voltage
	orange	1 x on	initialisation or reset checks
	green	5 Hz	no operating system loaded
	green	2.0 Hzon	RunStop
	red	2.0 Hzon	Run with errorfatal error or stop with error
	Test standards and regulations
Climatic test	damp heat to EN 60068-2-30, test Db(≤ 95% rel. humidity, non-condensing)protection test to EN 60529
Mechanical resistance	vibration to EN 60068-2-6, test Fcshock to EN 60068-2-27, test Ea bump to EN 60068-2-29, test Eb
Immunity toconducted interference	to ISO 7637-2: 2004, pulses 2a, 3a, 3b, severity level 4, function state Ato ISO 7637-2: 2004, pulse 5, severity level 1, function state Ato ISO 7637-2: 2004, pulse 1, 2b, severity level 4, function state C
Immunity to interfering fields	according to UN/ECE-R10 at 100 V/m (E1 type approval)and EN 61000-6-4 (CE)
Interference emission	according to UN/ECE-R10 (E1 type approval)and EN 61000-6-2 (CE)

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen
We reserve the right to make technical alterations without prior notice.
CR0302 / page 2 05.11.2014

CR0302 Characteristics of the inputs

Analogue inputs■Voltage inputsX2:01...10, A_IN 00...A_IN 07 input voltage can be configured as ... resolution 10 bits	accuracy ± 1% FSinput resistance 78.4 kΩ (0...10 V), 46.6 kΩ (0...32 V)input frequency 50 Hz
	■Current inputs, with diagnostic capabilityinput current 0...20 mAresolution 10 bitsaccuracy ± 1% FSinput resistance 400 Ωinput frequency 50 HzAt a current of >23 mA the pair of channels is switched to the voltage input!
	■Voltage inputs, 0...32 V, ratiometricfunction ( U_IN ÷ U_B ) x 1000 %ovalue range 0...1000 %o
	■Binary voltage inputs for positive sensor signalsThe analogue inputs A_IN 00...07 are configured / switched in pairs!The following inputs are combined in pairs: 0+4, 1+5, 2+6, 3+7
Digital inputsX4:01...08, IN 00...IN 07can be configured as ... switch-off level	■ Digital inputs for positive sensor signals, with diagnostic capabilityswitch-on level >0.6 U_B <0.3 Input resistance 3.21 kΩinput frequency 50 Hz
Digital inputsX4:11...14, IN 08...IN 11can be configured as ... switch-off level	■ Digital inputs for positive sensor signals, with diagnostic capabilityswitch-on level >0.6 U_B <0.3 Input resistance 3.16 kΩinput frequency 50 Hz
	■Frequency inputs for positive sensor signals, with diagnostic capabilityswitch-on level 0.4...0.7 U_B switch-off level 0.2...0.24 U_B input resistance 3.16 kΩmeasuring range 0...2 kHz oder 1...30 kHz
Digital inputsX4:15...18, IN 12...IN 15can be configured as ... switch-off level	■ Digital inputs for positive sensor signalsswitch-on level >0.6 U_B <0.3 Input resistance 3.21 kΩinput frequency 50 Hz
	■Digital inputs for negative sensor signalsswitch-on level <0.2 U_B switch-off level >0.5 U_B input resistance 3.21 kΩinput frequency 50 Hz
	The digital inputs IN 12...15 are configured / switched in pairs!The following inputs are combined in pairs: 12+13, 14+15
Test inputRS 232, D-Sub plug, pin 09	During the test mode (e.g. programming) the TEST input must be connected to U_B (10...32 V DC).For the "RUN" mode the TEST input must not be connected.
	also see wiring, page 5

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen
We reserve the right to make technical alterations without prior notice.
CR0302 / page 3 05.11.2014

CR0302 Characteristics of the output

Digital outputsX3:01...04, OUT 00...OUT 03 short-circuit and overload protectedcan be configured as ... switching voltage 10...32 V DCSwitching current max. 2 A	■ Semi conductor outputs, positive switching (high side), with diagnostic capability
	■PWM outputsPWM frequency max. 250 Hzsetting resolution 0,1 %load current max. 2 A
	The outputs 0...3 are combined and have a common U_COM connection.
Digital outputsX3:06...09, OUT 04...OUT 07 short-circuit and overload protectedswitching voltage 10...32 V DCSwitching current max. 2 A	■ Semi conductor outputs, positive switching (high side),
	The outputs 4...7 are combined and have a common U_COM connection.
Digital outputsX5:01...18, OUT 08...OUT 11 short-circuit and overload protectedSchaltspannung 10...32 V DCSchaltstrom max. 2 A	■ Semi conductor outputs, positive switching (high side),
	The outputs 8...11 are combined and have a common U_COM connection.
External free-wheeling diode	To protect the outputs free-wheeling diodes must be connected in parallel with the load in the case of high switch-off energies (inductive or capacitive loads).
	also see wiring, page 5

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen
We reserve the right to make technical alterations without prior notice.
CR0302 / page 4 05.11.2014

CR0302 Wiring

Explanation of the abbreviations:
A = analogue
BH = binary (high side)
BL = binary (low side)
FRQ/CYL = frequency inputs
IL = pulse (low side)
PH = PWM (high side)
PWM = pulse width modulated signals
RxD = serial interface (data received)
TxD = serial interface (data transmitted)