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Summary of Contents for Danfoss VLT PTC Thermistor Card MCB 112
- Page 1 Operating Guide VLT® PTC Thermistor Card MCB 112 VLT® HVAC Drive FC 102, VLT® AQUA Drive FC 202, VLT® Automation Drive FC 302 vlt-drives.danfoss.com...
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Page 3: Table Of Contents
Responsibilities of Users of Safety-related Power Drive Systems PDS (SR) Protective Measures Safety Precautions Installation Safety Instructions Installing the VLT® PTC Thermistor Card MCB 112 Sensor Circuit Wire Requirements Connecting Sensor Circuit Wires Maximum Current on MCB 112 Wiring of STO Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104 | 3... - Page 4 Alarm 68, Safe Stop 6.2.5 Warning 68, Safe Stop 6.2.6 Alarm 71, PTC 1 Safe Stop 6.2.7 Warning 71, PTC 1 Safe Stop 6.2.8 Alarm 72, Dangerous Failure 6.2.9 Unexpected Combinations Specifications Mains Supply 4 | Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104...
- Page 5 Control Inputs and Outputs 7.2.1 PTC Thermistor Connection X44/1+X44/2 7.2.2 Safe Stop Terminal 37, X44/12 7.2.3 Logic out, X44/10 Ambient Conditions 7.3.1 Environment 7.3.2 Testing Conditions Other Specifications Safety Characteristics of the Built-in MCB 112 Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104 | 5...
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Page 6: Introduction
PTC Thermistor Card MCB 112 is designed in accordance with EN 60947-8 (VDE 0660 part 0302). Only connect PTC thermis- ® tor sensors according to DIN VDE V 0898-1-401: 2020-03 (EN 60947-8). 6 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 7: Markings Of The Drive
Illustration 1: Label to Apply to Drive 1.5.2 Foreseeable Misuse Any use not expressly approved by Danfoss constitues misuse. This also applies to failure to comply with the specified operating conditions and applications. Danfoss assumes no liability of any sort for damage attributable to improper use. -
Page 8: Tripping Function
Non-explosive hazard zone Drive PTC Thermistor Card MCB 112 +24 V Logic Safe stop Control card PTC-sensors 3~Ex-Motor Converter module Potentially explosive atmosphere Illustration 2: Block Diagram of Safe Disconnect with MCB 112 8 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 9: Motor Requirements
MCB 112. The motors must not be operated as a group drive. 1.6.3 Approvals and Certifications Certification number: PTB 14 ATEX 3009 Certificates and declarations of conformity are available. Contact a local Danfoss partner. 1.7 Abbreviations and Conventions 1.7.1 Abbreviations... -
Page 10: Conventions
Parameter name. Parameter option. Parameter group name. • All dimensions in drawings are in metric values (imperial values in brackets). • An asterisk (*) indicates the default setting of a parameter. 10 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 11: Safety
Ensure short-circuit protection of the cable between terminal 37 and the external safety device according to ISO 13849-2 table D.4. Optional step: Install additional measures (for example, a safety holding brake) if external forces influence the motor axis (for example, suspended loads). Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 11... -
Page 12: Safety Precautions
Read and observe this operating guide and the safety warnings before installing the VLT PTC Thermistor Card MCB 112. Not ® adhering to the instructions and warnings in this manual may lead to personal injury, property and equipment damage. 12 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 13: Installation
VLT Frequency Converter - Safe Torque Off Operating Guide. ® Procedure Disconnect power to the drive. Remove the LCP, the terminal cover, and the LCP frame from the drive. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 13... -
Page 14: Sensor Circuit Wire Requirements
To ensure a properly working safe function, only use sensor circuit wires with a resistance <20 Ω. Wire cross-section [mm (AWG)] Wire length [m (ft)] 1.5 (16) 2x800 (2x2625) 1 (17) 2x500 (2x1640) 0.75 (18) 2x300 (2x984) 0.5 (20) 2x250 (2x820) 14 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 15: Connecting Sensor Circuit Wires
Measure the sensor resistance. Connect the sensor circuit wires to X44/T1 and T2, see 3.4 Connecting Sensor Circuit Wires. N O T I C E Only check PTCs with measuring voltages of <2.5 V. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 15... -
Page 16: Maximum Current On Mcb 112
Logic output signals the status in case of failure. 3.6 Wiring of STO Procedure Remove the jumper wire between control terminals 37 and 12, or 13. Cutting or breaking the jumper is not sufficient to avoid short circuiting. 16 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 17: Assembly
To indicate that the ATEX module is integrated, apply the delivered sticker to the front of the drive, see 1.5.1.1 Markings of Drive. Connect power to the drive. Perform risk assessment and a commissioning test according to EN ISO 12100. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 17... -
Page 18: Commissioning
(<20 Ω, or if the sensor or wire is interrupted. It switches back on automatically when the temperature has decreased by approxi- mately 5 °C (41 °F). Depending on the number of sensors, the following tripping and release temperatures are achieved with respect to TNF (nominal response temperature of the sensors). 18 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 19: Thermal Limitation Curve (Ex Eb And Ex Ec Motors Only)
ETR interpol points current. 1 0 0 % 8 0 % 4 0 % 5 Hz 15 Hz 25 Hz 50 Hz Illustration 8: Example of ATEX ETR Thermal Limitation Curve Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 19... -
Page 20: Parameter Set-Up
4.4.1 Overview of Ex eb and Ex ec Specific Parameters Parameter Setting Parameter 1–90 Motor Thermal Protection [20] ATEX ETR Parameter 1–94 ATEX ETR cur.lim. speed reduction Parameter 1–98 ATEX ETR interpol. points freq. Motor nameplate 20 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 21: Activate The Atex Etr Monitor Function
Running below the minimum frequency for more than 50 s issues warning 165, ATEX ETR freq.lim.warning. Operation below the minimum frequency for more than 60 s within a period of 600 s issues alarm 166, ATEX ETR freq.lim.alarm. The drive trips. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 21... -
Page 22: Maximum Motor Frequency
When selecting a warning instead of an alarm, automatic restart is enabled. See the section Parameter Settings for STO used with PTC Thermistor Card MCB 112 in the VLT Frequency Converters - Safe Torque Off Operating Guide. ® ® 22 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 23: Functions, Alarms, And Warnings
A dangerous failure related to Safe Torque Off issues alarm 72, Dangerous failure, see 6.2.2 Alarm/Warning Code List. A = alarm, W = warning. For further information, see the section Alarms and Warnings in the drive-specific operating guide or design guide. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 23... -
Page 24: Application Examples
Alternatively, Parameter 5-19 Terminal 37 Safe Stop could be set to [5] PTC 1 Warning, which means an automatic restart when the conditions of the PTC circuit have returned to acceptable. The selection depends on customer demands. 24 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 25: Combination With Other Components Using Sto
Selections [4] PTC 1 alarm to [9] PTC 1 & relay W/A in parameter 5-19 Terminal 37 Safe Stop are only visible if the MCB 112 is plugged into the B-option slot. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 25... - Page 26 N O T I C E Take care that the digital input set to [80] PTC card 1 is not also configured as thermistor resource (motor overload protection) in parameter 1-93 Thermistor Resource. 26 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104...
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Page 27: Maintenance And Troubleshooting
The MCB 112 applies 24 V DC to terminal 37 again (when the motor temperature reaches an acceptable level), and • The digital input from the MCB 112 is deactivated. Send a reset signal via bus, digital I/O, or by pressing [Reset]. Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 27... -
Page 28: Warning 71, Ptc 1 Safe Stop
PTC 1 Alarm PTC 1 Warning PTC 1 & Relay A PTC 1 & Relay W PTC 1 & Relay A/W PTC 1 & Relay W/A + = Activated - = Not activated 28 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104... -
Page 29: Specifications
EN 61000-6-2 EMC - Emission Industry Standard EN 61000-6-4 Vibration resistance 10–1000 Hz 1.1.4 g Shock resistance 50 g 7.3.2 Testing Conditions Standards EN 60947-8, EN 50178 Rated impulse voltage 6000 V Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104 | 29... - Page 30 The data of the functional safety stated in Table 8 Table 10 are valid for an ambient temperature of 40 °C (104 °F). Data for more ambient temperatures can be obtained on request. 30 | Danfoss A/S © 2022.08 AQ267038105120en-000101 / 130R0104...
- Page 31 Extended status word.................27 Thermal monitoring function..............8, 12 Thermal motor protection................7 Thermal winding protection...............9 Foreseeable misuse..................7 Tripping function.................... 8 IEC 60529...................11, 12, 13 Version history....................6 Intended use.....................6 Voltage drop.....................9 ISO 13849-2....................11 Warning word....................27 Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104 | 31...
- Page 32 VLT® PTC Thermistor Card MCB 112 Operating Guide Index X44/1.........................29 Zone 1......................6, 9 X44/10....................8, 17, 22, 29 Zone 2......................6, 9 X44/12.................. 13, 17, 18, 29, 30 Zone 21......................6, 9 X44/2.........................29 Zone 22......................6, 9 32 | Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104...
- Page 33 VLT® PTC Thermistor Card MCB 112 Operating Guide Index Danfoss A/S © 2022.08 AQ267038105120en-000101/130R0104 | 33...
- Page 34 Danfoss can accept no responsibility for possible errors in catalogs, 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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Is PTC Thermistor card required in PESO certification also?