Proximity Switch - Danfoss VLT Safety Option MCB 150 Installation Manual

Installation Guide | VLT® Safety Option MCB 150/151
FC 302
MCB 150
A 4
nA 6
B 7
nB 9
24 V 10
GND 11
Illustration 26: Y30/Connecting Power and Differential Encoder Signals to TTL Encoder (VLT® Safety Option MCB 150)
The TTL encoder in illustration 26
external supply.

4.2.3 Proximity Switch

An inductive proximity switch, detecting already present mechanical parts, for example a gear wheel, is a frequently used alternative to
standard encoders. The required minimum number of pulses per revolution (PPR) is 2 on the motor shaft while considering the gear
ratio.
FC 302
MCB 151
24 V 10
A 4
GND 11
Illustration 27: Y/31 Connecting VLT® Safety Option MCB 151 to Proximity Switch (only HTL)
Shield and terminate the proximity switch cable to chassis at both ends (at the proximity switch side and at the option side).
46 | Danfoss A/S © 2018.09
is shown with 24 V supply and TTL output. If an encoder for 5 V supply must be connected, use a 5 V
N O T I C E
Installation
AQ279747441421en-000101 / 130R0292