Danfoss VLT Safety Option MCB 152 Installation Manual
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Danfoss VLT Safety Option MCB 152 Installation Manual

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Installation Guide
VLT®Safety Option MCB 152
VLT® AutomationDrive FC 302 and VLT® Decen-
tral Drive FCD 302

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  • Page 1 Installation Guide VLT®Safety Option MCB 152 VLT® AutomationDrive FC 302 and VLT® Decen- tral Drive FCD 302...

  • Page 3: Table Of Contents

    Internal Faults Inputs and Outputs 3.9.1 Allowed Sensor Types on Digital Inputs 3.9.2 Inputs 3.9.3 Safe Option Monitoring (SO Mon) 3.9.4 Output 3.9.5 Signal Filtering 3.9.6 Stable Signal Time from Safe Outputs Danfoss A/S © 2020.02 AN327351953089en-000101 / | 3...
  • Page 4 Configuring the Hardware 6.5.2 Programming Safety Functions with Siemens Step 7 and TIA Portal 7 Parameter Setup About Safety Parameters Parameter Lists 7.2.1 Parameter Group 42-2* Safe Input 7.2.2 Parameter Group 42-3* General 4 | Danfoss A/S © 2020.02 AN327351953089en-000101 /...
  • Page 5 Digital Output (Safe Output) 10.3.2 24 V Supply Output 10.4 Other Specifications 10.4.1 Connector Cable Dimensions 10.4.2 Reset Characteristics 10.4.3 Response Time 10.4.4 Safety Characteristic Data 11 Appendix 11.1 Abbreviations 11.2 Conventions Danfoss A/S © 2020.02 AN327351953089en-000101 / | 5...

  • Page 6: Introduction

    VLT® Frequency Converters Safe Torque Off Operating Guide describes the use of VLT® FC Series drives in functional safety applications. Technical documentation for other product options is available at www.danfoss.com. 1.4 Document Version This Installation Guide is regularly reviewed and updated. All suggestions for improvement are welcome.

  • Page 7: Unit Features

    μ C MCB 152 Safety Option Internal bus 2 IGBT Illustration 1: FC 302 with VLT® Safety Option MCB 152 and Fieldbus Option 1.5.2 Unit Features The safety option has the following features: Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 7...

  • Page 8: Items Supplied

    VLT® Decentral Drive FCD 302 firmware version 8.23 • PROFINET software version 3.0 • VLT® Motion Control Tool MCT 10 software version 3.23. A license key is required to use the full set of features. 8 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 9: Compliance And Certifications

    The MCB 152 is tested and certified by PNO. 1.7 Disposal Do not dispose of equipment containing electrical components together with domestic waste. Collect it separately in accordance with local and currently valid legislation. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 9...

  • Page 10: Safety

    2. Identify safety functions required and allocate SIL or PLr to each of the functions. 3. Identify other subsystems and validate the signals and commands from those subsystems. 4. Design appropriate safety-related control systems (hardware, software, parameterization, and more). 10 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 11: Protective Measures

    Wait for the capacitors to discharge fully. The minimum waiting time is specified in the table Discharge time and is also visible on the nameplate on top of the drive. Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors are fully discharged. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 11...
  • Page 12 When external fores act on the motor, and unwanted movement, for example, caused by gravity, can cause a hazard. Failure to take extra measures for fall protection can result in death r serious injury. Equip the motor with fall protection, for example, extra mechanical brakes. 12 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 13: Risk Assessment

    Check whether the required Performance Level “PLr”, determined in the risk assessment, is achieved by the selected system for each safety sub-function used. Check the calculation using the SISTEMA SW Tool of IFA (Institute for Occupational Safety & Health). Danfoss provides a component library, which can be used for the calculation.

  • Page 14: Functions

    The safety function STO corresponds to a Category 0 stop (uncontrolled stop) in accordance with EN IEC 60204-1. • The safety subfunction Safe Torque Off corresponds to a category 0 stop (uncontrolled stop) in accordance with EN IEC 60204-1. 14 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 15 STO should not be used as a control for starting and/or stopping the drive. A Actual frequency 1 Activation of STO 2 Motor standstill Illustration 6: Safe Torque Off Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 15...

  • Page 16: Specification Of Safety Functions

    Internal faults always require a power cycle of the drive to reset the fault. Alternatively, use parameter 42-90 Restart Safe Option to restart the safety option after internal fault without power cycling the drive. 16 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 17: Inputs And Outputs

    With electromechanical sensors (for example, emergency stop buttons or door switches), the 2 sensor switches never switch at the same time (discrepancy). A long-term discrepancy points towards a fault in the wiring of a safe input, for example, a wire break. An Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 17...

  • Page 18: Stable Signal Time From Safe Outputs

    A signal change during a test pulse pattern usually lasts 1 ms. Under stable signal time, short pulses, which could lead to safety functions being incorrectly activated, can be filtered. 18 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 19 Stable Signal Time. Input signal Test pulse p attern DI1/DI2 S table si g nal time S table si g nal time Safety function Active Inactive Illustration 8: Filter for Suppressing Temporary Signal Changes Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 19...

  • Page 20: Installation

    It is not possible to install the VLT® Safety Option MCB 152 into a VLT® Decentral Drive FCD 302. It is placed into the drive by factory. For VLT® Decentral Drive FCD 302, chapters 4.2 to 4.4 can be skipped. 20 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 21: Installing The Option

    Place the VLT® AutomationDrive FC 302 with safety option (including connection between S37 (Y30/12 or Y31/12) on VLT® Safety Option MCB 152 and X44/12 on the control card) in an IP54 enclosure as per IEC 60529. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 21...

  • Page 22: Electrical Installation

    VLT® PROFINET MCA 120 Installation Guide. 4.4.1 Cabling Requirements C A U T I O N If a short circuit occurs, it is no longer possible to switch off the drive with terminal 37. 22 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 23: Connector Pin Assignment

    Digital input 1 A channel Ground DI1 B Digital input 1 B channel DI2 A Digital input 2 A channel Ground DI2 B Digital input 2 B channel Ground 24 V Power output Ground Safe output Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 23...

  • Page 24: Wiring Procedures

    Cutting or breaking the jumper is not sufficient to avoid short-circuiting. Illustration 12: Jumper between Terminals 12/13 and 37 (VLT® AutomationDrive FC 302) Illustration 13: Jumper between Terminal 12/13 (24 V) and 37, VLT® Decentral Drive FCD 302 24 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 25 Connecting Control Wiring, Example Showing FC 302 3. Connect the control cables to the safety option and relieve the cable by the enclosed cable strips. Follow the guidelines in 4.4.1 Cabling Requirements. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 25...

  • Page 26: Installation Checklist

    4.4.4 Installation Checklist Before completing installation of the unit, inspect the entire installation as described in: • VLT® AutomationDrive FC 301/FC 302 Operating Guide • VLT® Decentral Drive FCD 302 Operating Guide. 26 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 27: Commissioning

    A connection between the PC and the control card of the drive. N O T I C E If RS485 is used, set the protocol for serial communication to [0] FC-MC in parameter 8-30 Protocol (only accessible through the LCP). Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 27...

  • Page 28: Power-Up/Self-Test

    If STO is inactive (the drive is operational) when starting the customization process, the Safe Plug-in shows the Confirmation Required dialog box. This dialog box prompts the user to confirm that STO is activated during the commissioning. 28 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 29 7. If the safety option is in blank initial state, it prompts for a new password. A In the New password dialog box, enter the current password (which is the default password - 12345678) and the new password - then click OK. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 29...
  • Page 30 Installation Guide | VLT®Safety Option MCB 152 The Safe Plug-in shows the confirmation message. B Click OK. 8. In the Confirm password dialog box, enter the new safety option password and click OK. 30 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 31 To abort the customization process and revert to the previous safety option state, click Cancel. The MCT 10 opens the Writing Safety Parameters dialog box. 10. When the progress bar reaches 100%, the safety parameters are written. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 31...

  • Page 32: Commissioning Test

    Examining the response of specific monitoring functions to the explicit input of values outside tolerance limits. Perform the commissioning test based on the risk analysis. Adhere all applicable standards and regulations. 5.5.1 Performing the Commissioning Test Prerequisites: Ensure that the following preconditions are met: 32 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 33: Operation

    LED1, LED2, and LED4 are lit. During operation: • Any pulse edge change at the safety option safe input is monitored. • The safety sub-functions are performed in accordance with the configuration. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 33...

  • Page 34: Commissioning Setup Examples

    B Safety parameters are copied from 1 drive to another via the 10 and the drive. LCP Copy function. C Safety options configured in a network using the MCT 10 software. Illustration 24: Commissioning Setup Examples 34 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 35: Configuring The Safety Option

    For more information, refer to the PROFIdrive profile description at www.profibus.com. PROFIsafe status word (STW) Table 6: PROFIsafe Status Word (STW) Byte Name POWER_REMOVED 1–6 Not supported INTERNAL_EVENT Status DI 1 Status DI 2 2–7 Not supported Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 35...

  • Page 36: Safety Functions Configuration

    MCT 10 after writing the parameters to the safety option. 6.1.3 Password Protection Use a password to protect the system configuration. A password must be entered only when changing safety option parameters (writing to option). Default password is 12345678. 36 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 37: Status Over Fieldbus

    To reset the safety option using the control word, select [3] Safe Option Reset in parameter 8-14 Configurable Control Word CTW. This option is available only in bits 12–15 of parameter 8-14 Configurable Control Word CTW. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 37...

  • Page 38: Safety Option Status

    Pending fail-safe state Ext_fail Safe function pending General reset Customization_confirmed Customization_aborted Customization_requested Not applicable PUST warning DI_1_offline_warning DI_2_offline_warning Error code Error code Error code Error code Error code Error code Error code 38 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 39 Bit 13 = 1, The safety option is in this state at each power-up. Bit 14, External error • Bit 14 = 0, No external error is active. • Bit 14 = 1, An external error is active. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 39...
  • Page 40 These bits indicate a reason for internal or external errors. For more information, see the error codes. Parameter 42-91 Safe Option Status 2 indicates which digital input of the safety option is activated, in pending state or in blank initial state. 40 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 41: Reset Function

    If manual reset is configured, wire the DI2A reset input terminal to a 24 V DC via an NO switch. The manual reset can also be used to reset external errors detected by the safety option. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 41...

  • Page 42: Configuring Profisafe With Siemens Step

    This section explains how to configure PROFIsafe communication between VLT® Safety Option MCB 152 and Siemens device in Siemens Step 7 environment. 6.4.1 Configuring the Hardware Context: Configure the PROFINET communication with the F-PLC using the VLT® PROFINET MCA 120 Installation Guide. 42 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 43 1. In the panel in the right view, select PROFINET IO⇒Additional Field Devices⇒Drives⇒VLT FC Series⇒Danfoss FC PN. 2. Drag the Danfoss FC PN module and drop it onto the PROFINET connection. STEP 7 sometimes requires to enter a password for this operation.
  • Page 44 F_Dest_Add - the destination address of the safety option. This address must be the same as set in the VLT® Motion Control Tool MCT 10 software, parameter 42-61 Destination Address. • F_WD_Time - the watchdog time for the PROFIsafe connection. 44 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 45: Watchdog Time

    This section explains how to configure PROFIsafe communication between VLT® Safety Option MCB 152 and Siemens device with Siemens TIA Portal. 6.5.1 Configuring the Hardware Context: Configure the PROFINET communication with the F-PLC using the VLT® PROFINET MCA 120 Installation Guide. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 45...
  • Page 46 4. In the Password for Safety Program dialog box, enter the appropriate password. 5. Assign the name to the Danfoss device. The name must be the same is shown in parameter 12-08 Host Name. 6. Select the following I/O protocol: PROFIsafe 30 -6/6 Bytes, Standard Telegram 30.

  • Page 47: Programming Safety Functions With Siemens Step 7 And Tia Portal

    Fail-safe Controllers SIMATIC Safety Integrated. Emergency Stop with Acknowledgment in Category 4 according to EN 954-1. • Fail-safe Controllers SIMATIC Safety Integrated. Passivation and Reintegration of F-I/O considering as example the ET 200S. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 47...

  • Page 48: Parameter Setup

    [2] NC channel A and 24 V at channel B. • [2] NC: The functionality is similar to NCNC. For more information, see 3.9.1 Allowed Sensor Types on Digital In- puts. 48 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 49: Parameter Group 42-3* General

    Con‐ Data range value ver‐ type sion index 42-30 Exter- [0] STO [0] STO Select a safety function that is executed if an external error oc- – u_int8 nal Failure curs. Reaction Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 49...

  • Page 50: Parameter Group 42-6* Safe Fieldbus

    6.1.1 Telegram Configuration. If fieldbus communication is enabled, and if the reset signal comes via the fieldbus, this parameter also defines whether only the safety option or also the drive is reset. 50 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 51: Parameter Group 42-8* Status

    Test • [0] indicates PUST warning. • [1] indicates speed suspension warning (Not used for MCB 152). • [2] indicates DI1 offline test required. • [3] indicates DI2 offline test required. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 51...

  • Page 52: Parameter Group 42-9* Special

    Shows the number of error messages – u_int16 Counter shown since the last reset. 600-52 Fault Situation 0–1000 Shows the number of error situations – u_int16 Counter shown since the last reset. 52 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 53: Parameter Group 0-6* Password

    Enter the password that protects – u_int16 word the safety parameters. 0-69 Password Protection of [0] Disabled [0] Disabled Enable the password that protects – u_int8 Safety Parameters the safety parameters. [1] Enabled Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 53...

  • Page 54: Application Examples

    Connecting an Electronic Sensor, for example a Safety Light Curtain Connecting an antivalent sensor MCB15x A Actuator B Switch C Drive Illustration 31: Connecting 1 NO/1 NC Sensor, for Example Magnetic Switch 54 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 55 (for example, in separate wire ways or conduit). According to the definition of European standard EN ISO 13849-1, a 1-channel E-stop could be used in applications where PL c or less (b or a) has been determined via a risk-assessment procedure. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 55...
  • Page 56 E-Stop Illustration 34: Example of Multiple Drives in Daisy Chain Up to 3 drives may be connected in a daisy chain. Total cable length must not exceed 30 m (98.4 ft). 56 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 57: Maintenance, Diagnostics, And Troubleshooting

    MODIFICATIONS TO THE UNIT Only Danfoss is allowed to make hardware modifications of the safety option. If other parties change the unit, the warranty expires. Furthermore, Danfoss cannot be held liable for any consequences the changes may have on the functional safety.

  • Page 58: Repair And Troubleshooting

    Always disconnect mains supply to the drive before removing the safety option. Only qualified personnel are allowed to troubleshoot on the safety option Only Danfoss is allowed to repair the safety option. A defect option must be shipped to Danfoss. 9.2.1 Removing the Safety Option (FC 302 only)

  • Page 59: Replacing The Safety Option (Fc 302 Only)

    VLT® Safety Option MCB 150 or vice versa, the drive trips with Alarm 67, Option Change or Alarm 88, Option Detection. For more information, see 9.2.1 Removing the Safety Option (FC 302 only). Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 59...

  • Page 60: Mismatch Of Safety Option Parameters (Fc 302 Only)

    The drive allows copying safety parameters via the LCP. This functionality allows setting up a different drive with the exact same safety parameter configuration without using VLT® Motion Control Tool MCA 10. Follow this procedure to copy a predefined safety parameter configuration from 1 drive to another. 60 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 61: Error Conditions

    The system enters the set functionality, see 6.3 Reset Function. defined safe state. 9.3.1 Error Descriptions Table 17: Errors 72–76 Error Descrip‐ LED indications num‐ tion Reason Action LED1 LED2 LED3 LED4 Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 61...
  • Page 62 • Extend the discrepancy • Sensor time on the safe input is bro- using the VLT® Motion ken. Control Tool MCT 10 Safe Plug-in. 62 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 63 Dan- communica- foss. tion. Reaction: STO. Internal er- ror: Under- voltage Vuc1. Reaction: STO. Internal er- ror: Over- voltage Vuc1. Reaction: STO. Internal er- ror: Under- voltage 24 V Reaction: STO. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 63...
  • Page 64 Over- voltage Vuc2. Reaction: STO. Internal er- ror: Under- voltage int5v. Reaction: STO. Internal er- ror: Over- voltage int5v. Reaction: STO. Internal er- ror: Memo- ry error S2. Reaction: STO. 64 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 65 Maintenance, Diagnostics, and Installation Guide | VLT®Safety Option MCB 152 Troubleshooting Table 20: Errors 90–96 Error Description LED indications num‐ Reason Action LED1 LED2 LED3 LED4 Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 65...
  • Page 66 Vuc2 Core. Reaction: STO. Internal er- ror: Overvolt- age Vuc2 Core. Reaction: STO. Internal er- ror: Under- voltage Vuc2 SDRAM. Reaction: STO. Internal er- ror: Overvolt- age Vuc2 SDRAM. Reaction: STO. 66 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 67 500 • Sensor is installed according ms). broken. to specification. • Extend the discrep- ancy time for DI1 us- ing the VLT® Motion Control Tool MCT 10 Safe Plug-in. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 67...

  • Page 68: Lcp Messages

    LEDs on the front of the safety option provide information on operating states. The LEDs indicate the status of the option, that is active safety functions, failures, and warnings, if any. • LCP texts or info via bus show the status of the safety functions, for example, STO. 68 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 69: Lcp Status Messages

    10. After the reset, the safety option is set to blank initial state. For more information, see 6.1.3 0 RPM 0.00 A 0.00KW Password Protection. SO General Reset SO RESET required! !Safe Stop [W68] Auto Remote SO Req. RESET Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 69...
  • Page 70 Status !1(1) configuration. Reset the safety option to start the normal operation. 0 RPM 0.00 A 0.00KW SO Custom. aborted SO RESET required! !Safe Stop [W68] Auto Remote SO Req. RESET 70 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 71 When the safety option indicates an error or warning, the LCP shows the warning Safe Option Failure [W252] if the warning is not overwritten by a higher priority alarm. As a possible solution, check the connection between the safety option terminal S12 and terminal 37 on the control card. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 71...

  • Page 72: Specifications

    Cable length <30 m (98.4 ft) (shielded cable) 10.3.2 24 V Supply Output Supply voltage 24 V DC (voltage tolerance: +0.5 V DC to -4.5 V DC) Maximum output current 150 mA 72 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 73: Other Specifications

    The safety-related characteristic data are valid for all safety functions. When calculating the safety characteristic data, consider all units used within a safety function. Table 25: European Directives Name of directive Number/Description Machinery Directive (2006/42/EC) EN ISO 13849-1 EN IEC 62061 EN IEC 61800-5-2 Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 73...
  • Page 74 Subsystem classification Type B Probability of dangerous failure per hour PFH: 1,52 e-8 Probability of dangerous failure on demand PFD: 1,33 e-3 Category Cat 3 Performance level PL d (cat 3) 74 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 75 Name of performance Type/description Mean time to dangerous failure of each channel MTTFd: 245 years (High) Average diagnostic coverage : 86% (Low) Safe failure fraction SFF: 90% Proof test interval 20 years Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 75...

  • Page 76: Appendix

    Power up self-test. Internal self-test on the safety option. Safe function. Safety integrity level (IEC 61508, IEC 61800-5-2, IEC 62061). Safety option. SRECS Safety-related electrical control system (IEC 62061). SRP/CS Safety-related part of control systems (EN ISO 13849-1). 76 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...

  • Page 77: Conventions

    Parameter name. Parameter option. Parameter group name. Alarms/warnings. • All dimensions in drawings are in metric values (imperial values in brackets). • An asterisk (*) indicates the default setting of a parameter. Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 77...
  • Page 78 High-demand mode Disconnect Symbols Low-demand mode Test Test pulse pattern MCT 10 Safe Plug-in 15, 28 Unintended start NCNC Voltage Output Safety warning Password, reset PFD definition PFH definition Power consumption 78 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 79 This function is integrated within the drive as a standard. Warning If the term is used outside the context of safety instructions, a warning alerts to a potential problem that was detected by a monitoring function. A Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 79...
  • Page 80 Installation Guide | VLT®Safety Option MCB 152 Glossary - VLT® Safety Option MCB 152 warning is not an error and does not cause a transition of the operating state. 80 | Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578...
  • Page 81 Installation Guide | VLT®Safety Option MCB 152 Glossary - VLT® Safety Option MCB 152 Danfoss A/S © 2020.02 AN327351953089en-000101 / 130R0578| 81...

  • Page 82: An327351953089En-000101

    Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.

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