3 Installation
3.1 Safety Instructions
See
chapter 2 Safety
for general safety instructions.
3.2 STO 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 VLT
®
PTC Thermistor
Card MCB 112, see
chapter 3.3 Installation in Combination
with VLT
®
PTC Thermistor Card MCB 112
.
Enable the integrated STO 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
)
12/13
37
130BA874.10
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 (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).
12
37
3
2
FC
4
1
130BB967.10
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.
Complete wiring according to the instructions
given in the Operating Instructions of the
frequency converter.
Installation
Operating Instructions
MG37D202
Danfoss A/S © 09/2014 All rights reserved.
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