ZIEHL MS 220 DA, Operating Instructions Manual

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4 How to Install
4.1.1 Particular Instructions for EN 61508, Category SIL 1 and 2
Additional information to the ZIEHL documentation, page 7, section Additional notes for the SIL category according EN 61508 .
The MCB 112 VLT PTC Thermistor Card uses the approved option's feature of the sensor and temperature supervision in connection with the safety
function Safe Stop. Using this function does not generally lead into a safety function circuit, that has to be tested according to SIL recommendations,
stated in EN61508. Connecting the MCB 112 VLT PTC Thermistor card's output X44/12 with the drive's terminal 37 ensures the energy cut-off to the
motor, if a failure or an exceeded temperature is detected by the MCB 112 VLT PTC Thermistor Card. Only if additional components are used at the same
time in the above described circuit, and these components have to fulfill the SIL recommendation EN 61508 (e.g. an emergency stop), testing of this
circuit in accordance to the SIL recommendations is necessary.
To meet the requirements of the local explosion hazardous safety regulations, the local ATEX regulations must be observed. This could for instance be
the German
“Betriebssicherheitsverordnung“
, that guides maintenance and test procedures for which the end-user is responsible.
For further details, please refer to page 5 of the ZIEHL documentation part, section
Technical Data
.
4.1.2 Installation of Option in the Frequency Converter
Warning! Before start, interrupt the power supply voltage to the frequency converter. Never install an option card into the frequency
converter during operation.
The MCB 112 VLT PTC Thermistor Card option is exclusively intended for use in option slot "B". The mounting position of B options is shown in the
drawings below.
Illustration 4.1: A2, A3 and B3 Enclosure
Illustration 4.2: A5, B, C, E and F Enclosures
NB!
Please note that the MCB 112 VLT PTC Thermistor Card can be used in the complete power range of the FC 302.
• Remove LCP control unit, terminal cover, and standard frame (see figures above)
• If necessary, wire the terminal block with terminals 39 - 55 first.
• Insert the MCB 112 VLT PTC Thermistor Card option into slot "B".
• The plastic cover must point downwards.
• Connect the PTC thermistors to terminals T1 and T2 of the MCB 112 VLT PTC Thermistor Card.
MCB 112 VLT ® PTC Thermistor Option 4 How to Install
MG.33.V2.02 - VLT ® is a registered Danfoss trademark
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