Installation; Safety Instructions; Safe Torque Off Installation - Danfoss VLT Series Operating Instructions Manual

Installation

3 Installation

3.1 Safety Instructions

See chapter 2 Safety for general safety instructions.

3.2 Safe Torque Off Installation

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 Thermistor Module
MCB 112, see chapter 3.3 Installation in Combination with
Thermistor Module MCB 112.
Enable the integrated Safe Torque Off as follows:
1. 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
2. Connect an external safety monitoring relay via a
NO safety function to terminal 37 (Safe Torque
Off) 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 comply with Category 3 /PL "d"
(ISO 13849-1) or SIL 2 (EN 62061 and IEC 61508).
®
VLT Frequency Converters - Safe Torque Off Operating Instructions
1 Safety relay (cat. 3, PL d or SIL2
2 Emergency stop button
3 Reset button
4 Short-circuit protected cable (if not inside installation IP54
cabinet). See ISO 13849-2 Table D.4 for further information.
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).
3.
MG37D102 - Rev. 2013-11-15
FC
12
37
4
2
Complete wiring according to the instructions
given in the Operating Instructions of the
frequency converter.
3
3
1
7
3