ZIEHL MS 220 DA User manual

for integration with the
VLT® AutomationDrive FC 302
Rev. 2008-10-03130R0104 MG33V202*MG33V202*
Operating Instructions
Motor Protection Relay MS 220 DA

The documentation for the MS 220 DA/ MCB 112 VLT®PTC Thermistor Card contains two parts.
The first part documents the basic functionality of the option and has been developed with ZIEHL industrie-elektronik to serve as the basis for the ATEX
approval from PTB. The option is referred to as MS 220 DA in this part as this is the name selected by ZIEHL industre-elektronik and the name on the
ATEX certificate.
The second part follows the standard Danfoss Drives documentation structure and the option is referred to as MCB 112 VLT®PTC Thermistor Card which
is in line with the naming of the other options available. This part includes the dedicated parameter setup for the advanced alarm handling of the MCB
112. Furthermore, this part includes more elaborations regarding Safe Stop, considerations related to the drive and further safety precautions.
It is strongly recommended to read both parts of the documentation.
Motor Protection MS 220 DA/
MCB 112 VLT
®
PTC Thermistor Option
VLT® is a registered Danfoss trademark 1 1

Contents
1 Application and short description
3
Application and Short Description 3
Connection Plan 3
Overview of Functions 3
Block Diagram 4
Detailed Description 4
2 Important Notes 5
Important Notes 5
3 Assembly 7
Assembly 7
Putting into Operation 7
Maintenance and Repair 7
Warranty 7
Safety Integrity Level (EN 61508) 7
Troubleshooting 7
4 Technical Data 9
5 Safety Instructions and References 11
Special Remarks for Explosive Gas Atmosphere Areas (Zone 1 and Zone 2) 11
Special Remarks for Use in the Presence of Combustible Dust (Zone 21 and Zone
22) 11
Wiring 11
Resistance and Length of Sensor Circuit Lines 11
Safe Separation 12
Stop Function, Stop Category 0 12
Start and Restart 12
Manual Resetting 12
Additional Notes for the SIL Category According EN 61508 12
Maintenance and Repair 12
6 Install the MS 220 DA Option in the Frequency Converter 13
7 Certificates 15
Motor Protection MS 220 DA Contents
MG33V102 - VLT®is a regisered Danfoss trademark 1

1 Application and short description Motor Protection MS 220 DA
2 MG33V102 - VLT®is a regisered Danfoss trademark
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1 Application and short description
1.1 Application and Short Description
TMP tripping device MS 220 DA - MCB 112 PTC Thermistor Option B is designed as a passive option interface for Danfoss Frequency Converter series
VLT®. The MS 220 DA fulfils the requirements of the document P400 Platform
Identification of passive option and will be recognized automatically by
the drive.
TMP tripping device is according EN 60947-8 (VDE 0660 part 0302). PTC-thermistor sensors according DIN 44081 and 44082 (VDE 0660 part 0303) can
be connected. The TMP tripping device can be used to protect electrical machines against inadmissible heating due to overload. With ATEX marking it
can also be used as protection device for explosion-protected motors in areas with explosive gas atmospheres Zone 1 (refer to marking G) and locations
with explosive dust atmospheres Zone 21 (refer to marking D). All functions in the TMP tripping device serve to protect non-explosive-protected motors
and explosive-protected motors in regular operation and in case of failure.
Approvals: marking see type plate on the device.
1.2 Connection Plan
1.3 Overview of Functions
The TMP tripping device MS 220 DA - MCB 112 PTC Thermistor Option B includes a tripping stage for PTC-thermistor sensors with save potential separation
from supply voltage and ground. The tripping function switches off the +24 V DC-voltage directly at the Safety Stop T37 of the drive. The PNP logic
output terminal X44/10 signals the status in case of failure. The TMP tripping device works according to the closed-circuit principle. The device trips in
case of short-circuit or line interruption.
The MS 220 DA needs +24 VDC supply voltage. The serial EEPROM enables the drive to recognize the built-in option module.
Motor Protection MS 220 DA 1 Application and short description
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1.4 Block Diagram
1.5 Detailed Description
A current monitors continuously the resistance of the sensors. In cold state, the resistance is < 250 Ωper sensor (sensor circuit < 1.5 kΩ). The output
to X44/12 is high = 1. The resistance of the sensor rises rapidly at nominal response temperature TNF. At a resistance of 3…4 kΩoutput to X44/12
changes to low = 0. The devices also switches off in the case of sensor or line short-circuit 1) (< 20 Ω) or sensor or line interruption. It switches on
automatically when the temperature has decreased approx. 5 °C.
Attention ! 2): trip status is not stored and not non-volatile.
Depending on the number of sensors the following tripping and release
temperatures will be achieved with respect of TNF (nominal response
temperature of the sensors):
Trip temperature Release temperature
3 sensors in series TNF + 5 K TNF – 5 K
6 sensors in series TNF TNF – 20 K
1 Application and short description Motor Protection MS 220 DA
4 MG33V102 - VLT®is a regisered Danfoss trademark
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2 Important Notes
2.1 Important Notes
To use the equipment flawless and safely, transport and store properly, install and start professionally and operate as directed.
Only let persons work with the equipment who are familiar with installation, start and use and who have appropriate qualification corresponding to their
function. They must observe the contents of the instructions manual, the information written on the equipment and the relevant security instructions for
the setting up and the use of electrical units.
The equipments are built according to EN 60947 and checked and leave the plant according to safety in perfect condition. To keep this condition, observe
the safety instructions with the headline
Attention written in the instructions manual. Ignoring of the safety instructions may lead to death, physical injury
or damage of the equipment itself and of other apparatus and equipment.
If, in any case the information in the instructions manual is not sufficient, please contact our company or the responsible representative.
Instead of the industrial norms and regulations written in this instructions manual valid for Europe, you must observe out of their geographical scope the
valid and relevant regulations of the corresponding country.
Attention! Safety Circuits according to EN 60204. The equipment must not be used alone for functions, when an automatic start must
be avoided.
Motor Protection MS 220 DA 2 Important Notes
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3 Assembly Motor Protection MS 220 DA
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3Assembly
3.1 Assembly
The TMP tripping device MS 220 DA - MCB 220 PTC Thermistor Option B is intended to be used in Danfoss Automation Drives series VLT®. PTC-thermistor
sensors are connected directly to the terminals T1, T2. The lines of Safe Stop T37 and Logic Out are to be routed separately.
Attention: Routed lines must keep enough distance to sensor lines and other mainstream lines.
3.2 Putting into Operation
After installation and before first operation, the correct function of the TMP tripping device has to be tested by simulation of the sensor resistance at
terminals T1, T2.
This test must also be done after modifications in the installation.
This test can additionally be done with maintenance services:
Short circuit test: resistance 20 Ωin parallel to sensor terminals T1, T2
Line interruption test: disconnect sensor line at terminal T1 or T2
Temperature test: increase resistance 50…1500 Ωup to 4000 Ω
The tripping function will be displayed on the drive display and must be reseted manually.
Please notice the admissible ambient conditions > Technical data.
Atteention! The TMP tripping device MS 220 DA was designed for Class A. The use of this product in home applications can cause radio
frequency distortions.
3.3 Maintenance and Repair
The devices are maintenance-free. Only the manufacturer may accomplish repairs. We recommend an examination within the regular maintenance periods
of the plant, in which the equipment is installed.
3.4 Warranty
The guarantee presupposes the observance of this Operating Instruction (safety and start-up instructions).
3.5 Safety Integrity Level (EN 61508)
The safety function of the safety equipment
• achieves SIL 1 within a proof test interval of 3 years
• achieves SIL 2 within a proof test interval of 2 years.
The safety function fulfils the recommendations of category 2 according ISO 13849-1:1999 (EN 954-1:1996). More safety-related parameters -> Technical
data
3.6 Troubleshooting
• The resistance within the sensor circuit must have a value 50 Ω< R < 1500 Ω. The voltage at terminals T1, T2 must be < 2.5 VDC when PTC-
thermistor sensors are connected and the temperature is below TNF.
• The TMP tripping device must shut down when the sensor circuit is open. The voltage at terminals T1, T2 must be < 9 VDC.
Motor Protection MS 220 DA 3 Assembly
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