Siemens simatic et 200s Operating Instructions Manual page 259

Changing the Voltage for Rapid Feed and Creep Feed
The default setting for rapid feed is 10 V and the default setting for creep feed is 1 V. You
can only change these settings using JOBs 5 and 6.
After the 1PosInc/Analog starts up or after parameter assignment with changed parameters,
the values are accepted from the parameters.
You can set a voltage between 0 V and 11.7589 V (including overrange) in S7 analog value
format (you will find a detailed explanation in the
If you have selected a greater voltage for creep feed than for rapid feed, there will be
acceleration at the switchover point from rapid feed to creep feed.
Parameters
Drive
Adapt direction
Function DO
Switch-off
Switch-off difference
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Meaning
If you adjust the direction, this results in
the polarity reversal of your drive
Output:
Your drive is controlled by the analog
output using ±10 V.
You control the OUT digital output
using the CTRL_DO control bit.
Direction:
Your drive is controlled by the analog
output using 0 V to +10 V.
The direction for your drive is set by the
1PosSSI/Analog using the OUT digital
output.
Plus direction: OUT = 1
Minus direction: OUT = 0
Use this parameter to determine the
course of the voltage after the
switch-off point. It is only effective in
the relative and absolute positioning
modes.
Directly: The voltage is set directly to
0 V at switch-off point.
Ramp: As of switch-off point, voltage is
reduced to 0 V using the ramp.
Defines the distance from the
destination at which the drive is slowed
down from creep feed to 0.
If the switch-off difference ≥ the
switchover difference, there is no
switchover point. There is no
deceleration from rapid to creep feed,
and instead the response is executed
directly at the switch-off point.
You can change the switch-off
difference with JOB 3.
6.6 Functions of the 1PosSSI/Analog
Distributed I/O Device
Value range
Off
•
On
•
Output
•
Direction
•
Directly
•
Ramp
•
0 - 65 535
1PosSSI/Analog
manual).
Default setting
Off
Output
Directly
100
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