ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
15
1STEP 5V/204kHz
2
2.1 Product overview
Order number
6ES7138-4DC00-0AB0
Features
The 1STEP 5V/204kHz generates pulses for the power units of stepping motors. The
number of pulses emitted determines the distance traversed. The pulse frequency
determines the velocity.
A stepping motor shaft turns by a certain angle with every pulse. During rapid pulse
sequences, this stepping movement becomes a continuous turning motion.
The 1STEP 5V/204kHz has the following features:
● Digital input as reference cam
● Digital input as external STOP or external pulse enable
● Interface to commonly available stepping motor power units with differential signals for
pulses and direction to RS 422
● Maximum output frequency 204 kHz
● Distance up to 1 048 575 pulses
Configuration
You can use either of the following to configure the 1STEP 5V/204kHz:
● A DDB file (http://www.ad.siemens.de/csi/gsd) or
● STEP7 as of version V5.0 SP3
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