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3 Installation

3.1 Safety Instructions

C A U T I O N

ELECTRICAL HAZARD

The operator or electrical installer is responsible for proper grounding and compliance with all applicable national and local safe-
ty regulations.

See 

2.5 Safety Precautions

 and the Operating Guide of the relevant drive. Also, always observe the instructions provided by the

motor manufacturer.

AQ313340186453en-00101 / 130R0544

10 | Danfoss A/S © 2021.03

Installation

Safe Torque Off

Operating Guide

Summary of Contents for VLT FC Series

Page 1: ...Operating Guide Safe Torque Off VLT Frequency Converters vlt drives danfoss com...

Page 2: ......

Page 3: ...Card MCB 112 12 Commissioning 13 Safety Instructions 10 Activating STO 13 Parameter Settings for STO Used With VLT PTC Thermistor Card MCB 112 13 Automatic Manual Restart Behavior 13 STO Commissionin...

Page 4: ...tices Regarding Technical Data 21 European Directives 21 Safety Standards 21 Safety Function 21 Safety Performance 21 Appendix 22 Abbreviations 22 Conventions 22 AQ313340186453en 00101 130R0544 4 Danf...

Page 5: ...of operational safety Before integrating and using STO in an installation carry out a thorough risk analysis on the installation to determine whether the STO functionality and safety levels are appro...

Page 6: ...lel Drive Modules T or U at digit 18 of the type code 1 4 Applied Standards and Compliance Using the STO on terminal 37 requires that the user fulfills all provisions for safety including relevant law...

Page 7: ...en in the operating guide of the drive Have good knowledge of the generic and specialist standards applicable to the specific application 2 3 Responsibilities of Users of Safety related Power Drive Sy...

Page 8: ...by coasting If this limitation is not acceptable for example because it causes danger use the appropriate stopping mode to stop the drive and machinery before using the STO function Depending on the...

Page 9: ...to the machine actuators to achieve the stop Power is removed from the actuators when the stop is achieved according to EN 61800 5 2 Safe Stop 1 SS1 Stop Category 2 is a controlled stop with power ava...

Page 10: ...er grounding and compliance with all applicable national and local safe ty regulations See 2 5 Safety Precautions and the Operating Guide of the relevant drive Also always observe the instructions pro...

Page 11: ...w jumper wire between control terminals 37 and 12 or 13 Cutting or breaking the yellow jumper is not sufficient to avoid short circuiting see jumper in Illustration 1 12 13 37 e30ba874 11 Illustration...

Page 12: ...al from the safety related sensor are high If at least 1 of the 2 signals is low the output to terminal 37 must be low too Ensure that the safety device with AND logic complies with the needed safety...

Page 13: ...ing are selected and MCB 112 is triggered the drive issues alarm 72 Dangerous Failure and coasts the motor safely without automatic restart Do not select 4 PTC 1 Alarm and 5 PTC 1 Warning when an exte...

Page 14: ...nsure that the motor remains in the coasted state and that the mechanical brake if connected remains activated Send a reset signal via bus digital I O or Reset key Ensure that the motor is operational...

Page 15: ...ve trips the unit Verify that the motor is coasting and comes to a complete stop Verify that the motor cannot be started Reconnect 24 V DC supply to terminal 37 Verify that the motor is not started au...

Page 16: ...1 PL c ISO 13849 1 or SIL1 EN 62061 and IEC 61508 The STO function is activated via 1 NC positively operated switch contact according to IEC 60947 1 IEC 60947 5 1 and IEC 60947 5 5 The PL c the comple...

Page 17: ...The device used for activation of STO and safety relay must be suitable for the selected category PL and SIL When implementing the emergency stop pay attention to the following tips Any non safety rel...

Page 18: ...op or emergency stop command the drive is halted Where the safety control system must be in accordance with PL e ISO 13849 1 or SIL3 EN 62061 and IEC 61508 it requires a 2 channel stop for the STO fun...

Page 19: ...ty relay MSR 33 CH channel 1 BL FC 300 safe stop terminal 37 CH channel 2 BL output contactor 100S C Illustration 9 Safety related Block Diagram 5 5 Emergency Stop of Multiple Drives Category 3 PL d S...

Page 20: ...omponents The application designer is responsible for selecting suitable components The cable shown as bold in Illustration 10 has to be short circuit protected according to ISO 13849 2 table D 4 To f...

Page 21: ...62061 Safety integrity level SIL2 SIL CL2 Probability of dangerous failure per hour PFH 1E 10 h 1E 8 h for specific variants High Demand Mode 1 2 Probability of dangerous failure on demand PFD 1E 10...

Page 22: ...EC 61508 Average probability of failure on demand value used for low demand operation PL EN ISO 13849 1 Discrete level used to specify the ability of safety related parts of control systems to perform...

Page 23: ...rms warnings All dimensions in drawings are in metric values imperial values in brackets An asterisk indicates the default setting of a parameter AQ313340186453en 00101 130R0544 23 Danfoss A S 2021 03...

Page 24: ...8 9 9 EN ISO 13849 1 5 EN 62061 5 16 17 18 IEC EN 61508 6 IEC EN 61800 5 2 6 IEC EN 62601 6 ISO 13849 1 6 16 17 18 21 21 21 22 IEC EN 60204 1 6 IEC 60529 7 ISO 13849 2 7 16 17 18 19 ISO 12100 8 13 EN...

Page 25: ...AQ313340186453en 00101 130R0544 25 Danfoss A S 2021 03 Index Safe Torque Off Operating Guide...

Page 26: ...rinted 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...

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