10
11
Rev:5.0
6/08/2010
Rev:5.0
6/08/2010
MSST5/10-S UserManual
MSST5/10-S UserManual
3.4.2 STEP&DIR Digital Inputs
The S drives include two high speed inputs called STEP and DIR. They accept 5 volt single-ended
or differential signals, up to 2 MHz. EN is a 5 to 12 volt standard digital input that can be used for
motor enable, alarm reset, or oscillator speed change.
All inputs are configured using the ST Configurator software.
STEP and DIR inputs can connect to an indexer, a master encoder or CNC hand wheel for follow-
ing applications, or they can be used for connecting sensors, switches and other electronic de-
vices. They can be used as the run/stop and direction inputs for velocity (oscillator) mode.
STEP
DIR
DIR+
STEP+
STEP-
+5V OUT
DIR-
MSST5/10-S
Indexer
with
Sinking
Outputs
COM
DIR
STEP
DIR-
DIR+
STEP-
STEP+
MSST5/10-S
Indexer
with
Sourcing
Outputs
DIR+
DIR-
STEP+
STEP-
DIR+
DIR-
STEP+
STEP-
MSST5/10-S
Indexer
with
Differential
Outputs
A+
B+
B-
X1/STEP+
X1/STEP-
X1/DIR+
X1/DIR-
Driv
e
Master
Encoder
A-
