In some cases we put a warning next to a SMR. This is done where there is a need to emphasize that the safety information is just as important when the module is used for normal (non-safety related) functions. Instruction book, IQAN-MC3...
Contact the manufacturer if there is anything you are not sure about or if you have any questions regarding the product and its handling or maintenance. The term "manufacturer" refers to Parker Hannifin Corporation. Overview of relevant documentation The following publications are relevant for users of this product.
The machine must be equipped with an emergency stop that stops all movement. Please refer to section Emergency stop, on page 25. Before you start Read this document, as a minimum sections 1-7 Read the IQANdesign software user manual section on 'application safety'. Instruction book, IQAN-MC3...
Mounting and maintenance instruction book. Additional information for diagnosing the system Read section Diagnostics and troubleshooting, on page 45, and see Appendix B, on page 51, in this document. Use the IQANrun software user manual as a reference. Instruction book, IQAN-MC3...
The IQAN-MC3 is a SIL2 rated master module in the IQANdesign platform. It can be used as a standalone controller, as a single bus master, or together with other IQAN master modules.
Product description Inputs All of the 32 inputs on the IQAN-MC3 can be used for safety related signals, when the inputs are configured in pairs. On the unit there are 16 analog inputs for 0-5 V signals from e.g. hall-effect or potentiometer sensors;...
The IQAN-MC3 is designed for use in safety functions of up to SIL2 (IEC 61508). The IQAN-MC3 in itself does not come with any safety function; it needs to be put into a system and loaded with an application file.
• Measurement of module supply voltage • Measurement of module temperature The following built in functionality of the IQAN-MC3 is seen as non-safety related: • Logs • LED diagnostics OTICE The IQAN-MC3 does not come with any pre existing safety function implemented.
The IQAN-MC3 is suitable for connection to input subsystems of category 2, 3 or 4 in accordance with EN ISO13849-1, up to PLd. If inputs are connected as a Category B subystem, that will restrict the overall PL to a lower level.
Logic subsystem, IQAN-MC3 and application software The logic subsystem consists of the IQAN-MC3 and the application software. The hardware and embedded software of the IQAN-MC3 allows it to be used to implement safety functions of up to SIL2 or PLd.
(e.g. valve) The IQAN-MC3 module connected to output subsystem. The IQAN-MC3 is suitable for connection to output subsystems of category B, 1, 2, 3 or 4 in accordance with EN ISO13849-1, up to PLd. Local physical inputs used as part of input subsystem in safety functions This section describes the concept for how to use the IQAN-MC3 inputs (e.g.
VIN secondary -VREF Connecting pairs of signals. The wiring is the same for both alternatives. CAN communication The IQAN-MC3 has built in support for safe connection to other IQAN-MC3 units. For more information, see the IQANdesign user manual. Instruction book, IQAN-MC3...
Safe communication between IQAN-MC3 units, one CAN bus used CAN communication between multiple IQAN-MC3 master modules. The IQAN-MC3 can be used for connection to sensor subsystems over CAN, assuming that the CAN protocol is suitable for safety related communication and that the diagnostic features in that protocol are able to be implemented on the IQAN-MC3.
Internal diagnostics The concept of the IQAN-MC3 is that the primary CPU is monitored by a second, independent CPU; and they in turn are monitored by a completely separate safety ASIC.
• For maximum cooling, mount the module on a vertical surface. • Locate the module so that the LEDs are visible. Recommended placing. OTICE The IQAN-MC3 module must not be placed in any marine related or similar continuously damp, salt-spray environment without external protection. Instruction book, IQAN-MC3...
+BAT Power supply 12/24 Vdc DOUT-D DOUT power driver (type B), high side DRET-D DOUT power driver (type B), low side DOUT-E DOUT power driver (type B), high side DRET-E DOUT power driver (type B), low side Instruction book, IQAN-MC3...
Voltage signal input VIN-H Voltage signal input VIN-I Voltage signal input VIN-J Voltage signal input VIN-K Voltage signal input VIN-L Voltage signal input VIN-M Voltage signal input VIN-N Voltage signal input VIN-O Voltage signal input VIN-P Voltage signal input Instruction book, IQAN-MC3...
DIN / FIN / DFIN / PCN /DPCN signal input DIN-I Digital signal input DIN-J Digital signal input DIN-K Digital signal input DIN-L Digital signal input DIN-M Digital signal input DIN-N Digital signal input DIN-O Digital signal input DIN-P Digital signal input Instruction book, IQAN-MC3...
DOUT power driver (type B), low side DOUT-B DOUT power driver (type B), high side DRET-B DOUT power driver (type B), low side DOUT-C DOUT power driver (type B), high side DRET-C DOUT power driver (type B), low side Instruction book, IQAN-MC3...
+B AT Emergency stop. Since the IQAN-MC3 is capable of implementing safety functions, it may in some applications be tempting for the designer to implement the emergency stop as a function in the IQAN-MC3. The IQAN-MC3 does not have any built in emergency stop function, but if it is implemented anyway, it must be done with extreme caution.
If any of the outputs are shorted to battery voltage, the module will be powered by reverse feed of voltage, even when the connection to module power is off. The IQAN-MC3 is capable of detecting if outputs are shorted to battery voltage at start- up, and will prevent the application from starting.
When an IQANdesign application is loaded, it can set individual buses to be non-terminated. To give an IQAN-MC3 a unique address, you may use an addressing ID-tag, or an ID- tag having a combined address and terminating function. The ’T’ values of ID-tags are ignored, i.e.
This section contains information about how to connect and use the I/O, with specific additional information about rules that apply when the I/O is used in a safety function. Inputs There are 3 types of inputs in the IQAN-MC3: • Voltage inputs • Digital inputs •...
It is recommended that the connected sensors shall use one of the VREF’s from the IQAN-MC3, especially when voltage inputs are used in safety functions. If an external 5 V reference is used, it is up to the application to ensure that the reference voltage is correct.
A voltage input may be connected to a switch, but it shall use +VREF, the switch may not be connected to +BAT. OTICE The VIN are designed for permanent connection to +BAT, but not for +BAT transients. Therefore VIN connection to +BAT should be avoided. Instruction book, IQAN-MC3...
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The switches are connected to +VREF and VIN/DIN respectively for 5V signal. EXAMPLE Connect the positive and negative terminals of the switch to +VREF and VIN, respectively. IQAN-MC3 +VREF Connecting a switch to VIN and VREF. OTICE Maximum load for VREF position, see Appendix A, on page 46. Instruction book, IQAN-MC3...
If the additional signal is read by another digital input, it is recommended that the signals are not equal. For example, use linked normally open and normally closed switches. Instruction book, IQAN-MC3...
Connecting sensors to the directional frequency inputs Directional frequency inputs can operate in 2 modes. Speed which is frequency and position which is a pulse count. For the frequency ranges and trigger levels, see Appendix A, on page 46. Instruction book, IQAN-MC3...
MC3-SMR-011:A Use of DFIN inputs in pairs When directional frequency inputs are used in safety functions, the application shall be designed so that the input signals are compared to an additional signal to ensure that it is correct. Instruction book, IQAN-MC3...
I/O functionality Reference voltage, VREF The IQAN-MC3 is internally equipped with voltage regulators to generate the reference voltage VREF. The standard 5V reference voltage will feed different kinds of sensors. There is a VREF connection in both the C2 connector, and the C3 connector.
Appendix A, on page 46. Frequency To obtain the best performance from proportional valves the IQAN-MC3 produces a current mode (closed loop) output signal. The units have an adjustable frequency which can be changed using IQAN software.
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In PWM mode, the current is not measured, and diagnostics are limited. OTICE The PWM outputs on an IQAN-MC3 can not be used to drive Pulsar valves, select another IQAN module to do that. COUT mode output diagnostics The COUT is capable of detecting internal faults as well as wiring faults.
’under/over current threshold’, see Appendix A, on page 46. An undetected error that falls within these limits can lead to an unintentional change of speed of the output, and must be safe in the application for which the IQAN-MC3 is used.
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The COUT current range and slopes must be limited in the application file. Due to the risks involved with modifying these adjustable values, it is recommended that these limits are kept narrow. Alternatively, the access to modification of current range and slopes can be limited. See IQANdesign user manual. Instruction book, IQAN-MC3...
I/O functionality Digital outputs The IQAN-MC3 has two types of digital outputs. While all of the digital outputs are designed to drive coils for on-off valves, DOUT D-E are also designed to drive indicators such as LED’s. For current ratings on the DOUT’s, see Appendix A, on page...
You should also note that there are wiring errors that can only be detected on start-up of the unit. Undetected wiring faults There are DOUT wiring faults that are not detectable by the IQAN-MC3, and there are faults that are only detected at startup, see Appendix B, on page 51. MC3-SMR-017:A DOUT undetected wiring faults The application shall be designed so that undetected wiring errors on DOUT are safe.
The emergency stop should disconnect the supply voltage to all modules. IQAN-MC3 Emergency stop +BAT Dump valve Emergency stop. Alternatively, the emergency stop may also shut off the diesel engine or a dump valve, and with that depressurize the hydraulic system. Instruction book, IQAN-MC3...
• In addition to these measures, the machine shall also meet the machine directives for the country in question. ARNING Work on the hydraulics control electronics may only be carried out by trained personnel who are well-acquainted with the control system, the machine and its safety regulations. Instruction book, IQAN-MC3...
- Functions are positioned safely. - The machine is turned off. - The hydraulic system is relieved from any pressure. Check that electrical output signal correspond Start machine equal with hydraulic direction. engine Tune current settings and slope times. Engine ON Instruction book, IQAN-MC3...
CAN diagnostics connection One of the 4 CAN buses of the IQAN-MC3 may be dedicated for diagnostics. Reserving a bus for diagnostics ensures that signals are not interrupted by other bus traffic.
IQAN-MC3 Technical Overview Appendix A Appendix A IQAN-MC3 Technical Overview Absolute Maximum Ratings Ambient temperature, -40 to +85 °C Storage temperature -40 to +100 °C Voltage supply on +BAT 6 to 36 Vdc Voltage on any pin with respect to -BAT...
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IQAN-MC3 Technical Overview Appendix A System = -40 to +85 °C (unless otherwise specified) Weight 1.1 kg Ambient temperature, T -40 to +85 °C Voltage supply on +BAT, V 9 to 32 Vdc Current supply =14V typ. 250 mA typ. 170 mA...
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IQAN-MC3 Technical Overview Appendix A Signal input, DIN Number of DIN 16 (configuration may reduce number) Logic levels <1 V high >4 V hysteresis >0.1 V Input impedance 6.8 kohm in parallel with 10 nF Sample rate same as system cycle time T...
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IQAN-MC3 Technical Overview Appendix A Power driver, COUT Number of COUT 4 dual outputs COUT range 100 mA high 2000 mA COUT resolution 1 mA Power driver voltage drop 750 mA load typ. 0.45 V @ saturation 1500 mA load typ.
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IQAN-MC3 Technical Overview Appendix A Power driver, DOUT Number of DOUT Maximum load DOUT-A to DOUT-C 3.0 A DOUT-D to DOUT-E 1.5 A Power driver voltage drop DOUT-A to DOUT-C typ. 0.70 V @ 3 A load DOUT-D to DOUT-E typ.
Error description Output Input VREF Power Supply Temperature CAN, no contact IDtag error System mismatch CAN error (bus off) Internal error/OSE Critical Temperature Critical Stop a.Possible cause of 4:3 error is reverse feed of voltage on start-up. Instruction book, IQAN-MC3...
Failure modes Appendix B Failure modes The following tables have information about the actions taken by the IQAN-MC3 when certain failure causing conditions occur. Failure modes for single inputs OTICE For safety functions, VIN is the only input type that may be used without another input as comparison.
* DFIN short circuit to signal within low to Undefined ** high trigger level range * DFIN short circuit to signal < low trigger Frequency 0 level * DFIN short circuit to -BAT Frequency 0 ** Instruction book, IQAN-MC3...
Ability to shut down in the event of an internal error reduced. Detected at next start-up Current output Start-up Failure mode Detected Comment COUT short circuit to +BAT at start-up • Module prevented from starting. CRET short circuit to +BAT at start-up • Module prevented from starting. Instruction book, IQAN-MC3...
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COUT/DOUT). No influence on function in this state. COUT short circuit to 2 CRET/DRET (passive) • CRET short circuit to 2 CRET/DRET (active) No influence on function in this state. CRET short circuit to 2 CRET/DRET (passive) Instruction book, IQAN-MC3...
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CRET open • CRET short circuit to +BAT Reverse feed *. No influence on function in this state. CRET short circuit to -BAT • No influence on function in this state. CRET short circuit to 2 CRET (passive) Instruction book, IQAN-MC3...
Ability to shut down in the event of an internal error reduced. Detected at next start-up Digital output Start-up Failure mode Detected Comment DOUT short circuit to +BAT at start-up • Module prevented from starting. DRET short circuit to +BAT at start-up • Module prevented from starting. Instruction book, IQAN-MC3...
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DRET (active) No influence on function in this state. DOUT short circuit to 2 CRET/DRET (passive) • DRET short circuit to 2 DRET (active) No influence on function in this state. DRET short circuit to 2 CRET/DRET (passive) Instruction book, IQAN-MC3...
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DRET (active) No influence on DOUT (error detected DRET short circuit to 2 CRET (active) on 2 COUT). No influence on function in this state. DRET short circuit to 2 CRET/DRET (passive) Insufficient voltage on +BAT • Instruction book, IQAN-MC3...
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DRET (active) No influence on DOUT (error detected DRET short circuit to 2 CRET (active) on 2 COUT). No influence on function in this state. DRET short circuit to 2 CRET/DRET (passive) Insufficient voltage on +BAT Under current Instruction book, IQAN-MC3...
MC3-SMR-013:A COUT error detection limits ..........38 MC3-SMR-014:A COUT undetected wiring faults.......... 38 MC3-SMR-015:A Minimum current when using DOUT as power driver ..41 MC3-SMR-016:A DOUT used as alarm drivers ..........41 MC3-SMR-017:A DOUT undetected wiring faults.......... 41 Instruction book, IQAN-MC3...
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For the latest information visit our website www.iqan.com Information in this instructionbook is subject to change without notice Publ no HY33-8001-IB/UK Edition 2016-05-16 Parker Hannifin Parker Hannifin Electronic Controls Division Electronic Controls Division SE-435 35 Mölnlycke 1651 N. Main Street...
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