Maintaining MC4's Instrument Database
168
MC4 User Guide
FIELD
(cont.)
DESCRIPTION
P
Reset Point
0 %
,
100 %
Switch's reset point should be within this
range. For best results, enter a range that
is symmetric in regard to the set point.
Note.
MC4 starts scanning for the reset point af-
ter the set point is found. The scan starts
from 0% value towards the 100 % value.
Make sure you define the range so that the
scan advances toward the reset point and
does not immediately jump passed it.
Use Prescan
If enabled, at the beginning of switch cali-
bration, MC4 searches for approximate
values for the set and reset point. This
speeds up the final test without sacrificing
accuracy. The prescan test is done only
once in a calibration.
Note that prescan is of use only when MC4
is generating/simulating the switch's out-
put.
Update Switch
Scan Range Auto-
matically
Active only if previous check box is set. If
this one is checked, the
Switch
Ramp/Scan Ranges
are used during
prescan. During the actual scan for set and
reset point, a smaller range based on
prescan data is used. This produces more
accurate results.
Note that the prescan and scan range up-
date is needed when it is taken into use
only (applies for a stable switch).
Step Response
Wait [ms]
This field is comparable to
Setpoint De-
lay
field for non-switches. If defines the
time (in milliseconds) MC4 waits for the
switch's output to react after a step change
in the input was done. This setting is used
during prescan.
If you get an error message during
prescan, check the scan ranges and try
increasing this value. Some switches may
require a wait time of a few seconds (few
thousands of milliseconds).
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Summary of Contents for MC4
Page 46: ...Service 34 MC4 User Guide Empty ...
Page 106: ...Tools Menu 94 MC4 User Guide Empty ...
Page 134: ...Related Information 122 MC4 User Guide Empty ...
Page 195: ...Appendixes Appendix 1 Technical Data 184 Appendix 3 Index 203 ...
Page 223: ...Notes MC4 User Guide 211 Notes ...
Page 224: ...Notes 212 MC4 User Guide ...