Auxiliary Speed Sensor - Siemens Milltronics BW500 Operating Instructions Manual

5.5.3

Auxiliary Speed Sensor

①
Note
Shields are common, but not grounded to chassis. Run cable shields through SHLD
terminals and ground at BW500 only.
Connect any one of BW500 terminals 24 through 28 to speed sensor terminal:
● '2' for clockwise speed sensor shaft rotation
● '3' for counter-clockwise speed sensor shaft rotation.
Speed sensor shaft rotation is viewed from the front cover of the speed sensor enclosure.
An input device in the form of an open collector transistor, or dry contact may be connected
between BW500 terminal 29 (COM) and any one of the AUX inputs (terminals 24 through 28).
As per the "HTL" setting for the Main Speed Sensor input, an internal pullup of 12 V through a
3.3 kohm resistor is supplied, with a switching threshold of 5.5 V (nom.) and +/- 1 V hysteresis. If
a speed sensor other than the models shown is supplied, consult with Siemens.
Note
Auxiliary speed sensor not available for BW500/L.
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
Speed sensor
Installation
5.5 Speed
37