Connecting-up
08.2000
SBP - Sensor Board Pulse
6SE7087-6NX84-2FA0
Siemens AG
4-4
Operating Instructions
SIMOVERT MASTERDRIVES
RS422 (TTL)
HTL bipolar
HTL unipolar
Voltage range -
Input
max. 33 V
min. -33V
Voltage range +
Input
max. 33 V
min. -33V
Switching level
Differential voltage - LOW
Min -150 mV
Min -2 V
Min 4 V
Switching level
Differential voltage - HIGH
Max 150 mV
Max 2 V
Max 8 V
Table 4-3
Voltage range of the encoder inputs
NOTE
For the connection of unipolar signals, a ground connection at the CTRL-
terminal is adequate for all signals. In view of the possibility of interference
radiation, it is recommended in the case of cables with lengths of more than
100 m to bypass the four terminals A–, B–, zero pulse– and CTRL– and to
connect to the encoder ground.
Voltage range of the
encoder inputs
