Type Of Speed Output Signal; Optical Speed Measuring System With A Reference Pulse - HBM T10FS Operating Manual

T10FS

7.8 Type of speed output signal

You can use switch S7 to change the symmetrical 5 V output signal (factory
setting) to an asymmetrical signal of 0 V ... 5 V.
Switch S7
Fig. 7.12: Switch S7; symmetrical/asymmetrical output signal
7.9 Optical speed measuring system with a reference
pulse
In the case of the reference pulse option, a magnet is integrated into the
slotted disc of the speed measuring system, that generates a pulse at each
full revolution of the rotor. The pulse can be picked up at connector 2 (see
Page 39).
The reference pulse is synchronized with the speed output signal (5 V
and is output if the reference marker is passed and a rising edge occurs
during the speed signal.
The pulse length corresponds to the length of a speed increment, which
depends on the chosen pulse count and speed (for the calculation, see
Page 49).
Reference pulse
Speed signal 0 
Speed signal 90 
Fig. 7.13: Electrical condition of the reference pulse
1)
RS-422 complementary signals
A0785-1.4 en
symmetrical asymmetrical
Pos.2
Pos.1
5 V symmetrical
5 V symmetrical
5 V symmetrical
55
1)
, 0)
HBM