Vacon OPTAF User Manual
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Vacon OPTAF User Manual

Vacon OPTAF User Manual

Vacon nx sto and atex option board
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  • Page 1 ® ac drives optaf sto and atex option board user manual...

  • Page 3: Table Of Contents

    3.4 Wiring examples ......................24 3.4.1 Example 1: OPTAF board without reset for Safe Torque Off (STO)........24 3.4.2 Example 2: OPTAF board with reset for Safe Torque Off (STO) or EN 60204-1 stop category 0 ..............................25 3.4.3 Example 3: OPTAF board with external safety relay module with or without reset for Safe Torque Off (STO) or EN 60204-1 stop category 0 ...............26...
  • Page 4 • 2 4.2.2 Parameter setting for ATEX function ................43 4.2.3 Short circuit monitoring....................44 4.2.4 Exceptional use of thermistor function on OPTAF board (similar to OPT-A3, not in compliance with ATEX directive 94/9/EC) ......................44 4.2.5 OPTAF board parameter....................45 4.3 Maintenance........................46 4.3.1 Fault diagnosis of thermistor function ................46...

  • Page 5: General

    GENERAL vacon • 3 GENERAL ® This document covers OPTAF option board VB00328H (or newer) and VACON NXP Control board VB00761B (or newer). Table 1. Version history of the manual Date Revision Updates • ATEX certificate added. • Figures updated throughout the manual.
  • Page 6 The thermistor tripping function is certified by VTT** according to ATEX directive 94/9/EC. All safety functions of the OPTAF board are described in this user's manual. The OPTAF option board contains also two programmable output relays. (Note! Not part of any safety function.) NOTE! The STO function is not the same as a prevention of unexpected start-up function.
  • Page 7 Danfoss A/S Vacon Ltd declares under our sole responsibility that the Product name Vacon OPT-AF option board to be used with Vacon NXP control board in NX family products Product identification OPT-AF option board, VB00328H (or newer revision) NXP control board, VB00761B (or newer revision)
  • Page 8 • 6 GENERAL Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...
  • Page 9 GENERAL vacon • 7 Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...
  • Page 10 • 8 GENERAL Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...
  • Page 11 GENERAL vacon • 9 Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...
  • Page 12 • 10 GENERAL Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...

  • Page 13: Installation Of The Optaf Board

    INSTALLATION OF THE OPTAF BOARD vacon • 11 INSTALLATION OF THE OPTAF BOARD   MAKE SURE THAT THE AC DRIVE IS SWITCHED OFF BEFORE AN OPTION OR FIELDBUS BOARD IS CHANGED OR ADDED! NOTE ® VACON NXP AC drive with IP54 enclosure.
  • Page 14 • 12 INSTALLATION OF THE OPTAF BOARD Install OPTAF option board in slot B on the control board of the AC drive. Make sure that the grounding plate fits tightly in the clamp. Cable installation: STO and SS1 safety functions require the use of cable sealing grommets or glands for all cables in the drive.

  • Page 15: Optaf Board Layout

    Relay "NO" Jumper wire X12 See Chapter 4.2.4. 11052.emf Figure 1. The layout of the OPTAF board Control board VB00761 layout The revision of the control board VB00761 can be determined from the sticker on the board. Ñ761JÌ3$ Í2AS{Ó 761J190400002AS Ñ761JÌ...

  • Page 16: Sto And Ss1 Safety Functions

    STO AND SS1 SAFETY FUNCTIONS STO AND SS1 SAFETY FUNCTIONS The safety functions of the OPTAF option board, such as the technical principle and data, wiring ex- amples and commissioning, will be described in this chapter. NOTE! Designing of safety-related systems requires special knowledge and skills.

  • Page 17: Safe Torque Off (Sto) Principle

    Safe Torque Off (STO) principle The STO safety function of the OPTAF board allows the drive output to be disabled so that the drive cannot generate torque in the motor shaft. For STO, the OPTAF board has two separate, galvanically isolated inputs SD1 and SD2.
  • Page 18 Enable PWM control POWER UNIT Hardware Power STO 2 unit logic Hardware STO 1 11970_uk.eps ® Figure 4.STO safety function principle in VACON NXP AC drive with the OPTAF board, FR9-FR14 Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...

  • Page 19: Safe Stop 1 (Ss1) Principle

    STO safety function. These two subsystems combined compose the Safe Stop 1 safety function as shown in Figure 6. Safe Stop 1 (SS1) Time Delayed Safety Relay Vacon NX Safe Torque Off (STO) Subsystem Subsystem Safety Relay 11055.emf...
  • Page 20 • 18 STO AND SS1 SAFETY FUNCTIONS Figure 7 shows the connection principle of Safe Stop 1 safety function. The time delayed safety relay outputs are connected to the STO inputs. A separate digital output from the safety relay is connected to a general digital input of the ®...

  • Page 21: Technical Details

    Reversed polarity applied on STO input terminals does not cause disabling of STO function. The op- eration of OPTAF is not interfered by test pulses that are generated to the STO lines by the connect- ed safety actuator as long as the test pulses fulfill certain requirements. See chapters 3.3.3 and 3.3.4 for details.

  • Page 22: External Light Test Pulse Filtering Capability

    The thermistor input is disabled by making a short circuit to the ter- minals and setting the jumper X10 in "OFF" state. The thermistor input operation and instructions are presented in Chapter 4. I/O terminals on OPTAF Table 4. OPTAF I/O terminals Parameter reference Terminal on keypad and...

  • Page 23: Safety-Related Data According To The Standard

    STO AND SS1 SAFETY FUNCTIONS vacon • 21 Table 4. OPTAF I/O terminals Parameter reference Terminal on keypad and Technical information NCDrive Ω TI1+ Thermistor input; R > 4.0 k (PTC) trip TI1- DigIN:B.1 max voltage = 10 V max current = 6.7 mA * If 230 VAC is used as control voltage from the output relays, the control circuitry must be powered with a separate isolation transformer to limit short circuit current and overvoltage spikes.
  • Page 24 • 22 STO AND SS1 SAFETY FUNCTIONS IEC 61508:2000 SIL 2 SIL 3 SIL 3 Low Demand Mode = 2.61 x 10 = 2.30 x 10 = 2.9 x 10 = 20 years = 20 years = 20 years...
  • Page 25 STO AND SS1 SAFETY FUNCTIONS vacon • 23 Abbreviations or safety parameters definitions Safety Integrity Level Performance Level Probability of a dangerous random hardware Failure per Hour Category Designated architecture for a safety function (from EN ISO 13849-1:2006) The average probability of (random hardware) failure on demand Mission time Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...

  • Page 26: Wiring Examples

    • 24 STO AND SS1 SAFETY FUNCTIONS Wiring examples The examples in this chapter show the basic principles for wiring OPTAF board. Local norms and regulations should be always followed in the final design. 3.4.1 Example 1: OPTAF board without reset for Safe Torque Off (STO)

  • Page 27: Example 2: Optaf Board With Reset For Safe Torque Off (Sto) Or En 60204-1 Stop Category 0

    Figure 9 presents a connection example of OPTAF board for STO safety function with reset. The switch S1 is connected with 4 wires to the OPTAF board as shown above. The digital input 3 (DIN3), for example, is wired for the fault reset function. The reset function can be programmed to any of the available digital inputs.

  • Page 28: Example 3: Optaf Board With External Safety Relay Module With Or Without Reset For Safe Torque Off (Sto) Or En 60204-1 Stop Category 0

    External safety relay module is connected to the switch S1. The used power supply to switch S1 is 230 VAC as an example. The safety relay module is connected to OPTAF board with 4 wires as shown in Figure 10.

  • Page 29: 60204-1 Stop Category 1

    External safety relay module is connected to the switch S1. The safety relay module is connected to OPTAF board with 4 wires as shown in Figure 11. The time delay settings of the safety relay must correspond to the application requirements.

  • Page 30: Commissioning

    • The wiring should be done according to the general wiring instructions for the specific prod- uct where OPTAF is installed. See wiring examples in the Figure 12, Figure 13 and Figure 14. • If shielded cable is used, the shield must be connected to the drive's lid (PE) using a ground- ing clamp.
  • Page 31 STO AND SS1 SAFETY FUNCTIONS vacon • 29 OPTAF SAFETY ACTUATOR CHANNEL 1 +24V SD1+ SW P SD1- SW M OPTAF +24V CHANNEL 2 SD2+ SD2- 11968_uk Figure 13. STO connection example 2 OPTAF SAFETY ACTUATOR CHANNEL 1 +24V SD1+...

  • Page 32: Checklist For Commissioning The Optaf Board

    The minimum steps required during connecting the Safe Torque Off (STO) or Safe Stop 1 (SS1) safe- ty functions of the OPTAF board are shown in the checklist below. To comply with the functional safety standards, each point of the checklist must be answered yes. For ATEX related issues see the ATEX section.

  • Page 33: Parametrizing The Drive For The Safe Torque Off (Sto) Safety Functions

    Safe Stop 1 (SS1) safety function and are the corresponding settings done according to Chapter 3.5.4? Is the enclosure class or the cabinet class of the drive where the OPTAF board is installed either: at least IP54?

  • Page 34: Optaf Board Parameter

    NXP multi purpose application provides the user with this possibility. The indication of STO state could be parametrized to one of the relays on OPTAF board (B1 or B2). The parameter for providing this feedback can be found in: parameters ...

  • Page 35: Testing The Safe Torque Off (Sto) Or Safe Stop 1 (Ss1) Safety Functions

    STO AND SS1 SAFETY FUNCTIONS vacon • 33 NOTE! See manufacturer user manual for more information regarding the setting of the time delay. Safe Stop 1 safety function requires that the drive is configured according to the following guide- lines: •...

  • Page 36: Maintenance

    See Chapter 3.5.6. 3.6.1 OPTAF-related monitoring values Table below lists the OPTAF-specific values that should be considered for logging when submitting support request for Danfoss support. Table 9. Internal variables of the drive for monitoring and logging...
  • Page 37 Correcting measures SafeTorque- STO inputs SD1 & SD2 are activated through the OPTAF option board. Table 11 shows faults that may be generated from the software part that monitors the hardware re- lated to the STO safety function. If some of the faults listed below occur, the fault may NOT be reset.
  • Page 38 STO inputs or board in the thermistor input. ® VACON NXP con- trol board System Fault OPTAF board mounted in ® Change the VACON ® old VACON NXP control NXP control board to board. VB00761. System Fault...

  • Page 39: Thermistor Function (Atex)

    It can be used as an overtemperature tripping device for motors in explosive area (EX motors). NOTE! The OPTAF board also contains the Safe Torque Off (STO) safety function. When STO is not intended to be used, inputs SD1+(OPTAF: 1), SD2+(OPTAF:3) are to be connected to +24 V (e.g. OPT- A1:6) &...
  • Page 40 Danfoss A/S Vacon Ltd declares under our sole responsibility that the Product name Vacon OPT-AF option board to be used with Vacon NXP control board in NX family products Product identification OPT-AF option board, VB00328H (or newer revision) NXP control board, VB00761B (or newer revision)
  • Page 41 RO1/1 RO1/2 RO2/3 RO2/2 Relays only for operational use, not part of the ATEX certified thermistor function control control POWER UNIT 11068.eps ® Figure 16. Thermistor function principle in VACON NXP AC drive with the OPTAF board Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...

  • Page 42: Technical Data

    4.1.1 Functional description The thermistor supervision circuit of the OPTAF board is designed to provide a reliable way of dis- abling the drive modulation in case there is an overtemperature at the motor thermistor(s). By disabling the drive modulation the feeding of the energy to the motor is prevented and a further heating up of the motor due to this is avoided.

  • Page 43: Hardware And Connections

    = 10 V max current = 6.7 mA The thermistor (PTC) is connected between the terminals 28(TI1+) and 29(TI1-) of the OPTAF board. The optocoupler isolates the thermistor inputs from the control board potential. * If 230 VAC is used as control voltage from the output relays, the control circuitry must be powered with a se- parate isolation transformer to limit short circuit current and overvoltage spikes.
  • Page 44 • 42 THERMISTOR FUNCTION (ATEX) 11069.emf Figure 18. Typical characteristics of a motor-protection sensor as specified in DIN 44081/DIN 440 Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/...

  • Page 45: Commissioning

    3= Fault, stop by coasting. * With OPTAF board according to ATEX directive 94/9/EC (i.e jumper wire X12 not cut) , response to thermistor fault = 2 is always same as response to thermistor fault =3, i.e. stop by coasting.

  • Page 46: Short Circuit Monitoring

    The drive returns to Ready state. The valid start command is then needed to restart the drive. NOTE! With OPTAF board according to ATEX directive 94/9/EC (i.e jumper wire X12 not cut) all ®...

  • Page 47: Optaf Board Parameter

    When OPTAF board parameter "Start-Up Prev" is "Fault", the drive will generate a "F26 Start- Up Prev" fault if start command is on, when returning to ready state after the STO safety function or a thermistor fault has been active.

  • Page 48: Maintenance

    System Fault OPTAF board has been - It is not allowed to remove removed. the OPTAF board once it has been recognized by the software. NOTE! There is only one method to clear this fault. By writing "OPTAF Removed" to "1"...
  • Page 49 Fault Fault Subcode Possible cause Correcting measures code System Fault 37…40 Single hardware problem - Change the OPTAF board detected in STO inputs. ® or the VACON NXP con- trol board System Fault 41…43 Single hardware problem - Change the OPTAF board.
  • Page 50 Document ID: Vacon Ltd DPD00891F Member of the Danfoss Group Rev. F Runsorintie 7 65380 Vaasa Sales code: DOC-OPTAF-10+DLUK Finland...

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