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Installation

3 Installation

See chapter 2 Safety for general safety instructions.

For motor connection, AC mains connection, and control

wiring, follow the instructions for safe installation in the

Operating Instructions of the frequency converter.

For installation with the Ex-certified VLT

Card MCB 112, see chapter 3.3 Installation in Combination

with VLT

PTC Thermistor Card MCB 112.

Enable the integrated STO as follows:

Remove the jumper wire between control

terminals 37 and 12 or 13. Cutting or breaking

the jumper is not sufficient to avoid short-

circuiting. (See jumper on Illustration 3.1)

Illustration 3.1 Jumper between Terminal 12/13 (24 V) and 37

Connect an external safety monitoring relay via a

NO safety function to terminal 37 (STO) and

either terminal 12 or 13 (24 V DC). Follow the

installation instructions for the safety monitoring

relay, and ensure that the safety monitoring relay

complies with Category 3 /PL "d" (ISO 13849-1) or

SIL 2 (EN 62061 and IEC 61508).

MG37D202

Operating Instructions

PTC Thermistor

Illustration 3.2 Installation to Achieve a Stop Category 0 (EN

60204-1) with Safety Cat. 3/PL "d" (ISO 13849-1) or SIL 2 (EN

62061 and IEC 61508).

Safety relay (cat. 3, PL d or SIL2

Emergency stop button

Reset button

Short-circuit protected cable (if not inside installation IP54

cabinet). See ISO 13849-2 Table D.4 for further information.

Complete wiring according to the instructions

given in the Operating Instructions of the

frequency converter.