Settings
10.6 Perform "Fast Cam Parameter Change"
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
115
Address
relative
Name Type Start
value
Comment
+1.6 EFFDIR_M BOOL FALSE 1 = negative effective direction (minus)
+2.0 CBEGIN DINT L#0 New cam start
+6.0 CEND DINT L#0 New cam end / new activation time
+10.0 LTIME INT L#0 New lead time
Deactivating a cam when making modifications
To maintain consistency, always deactivate the cam (CAM_OFF) when you modify the cam
start and cam end settings.
Data check by the module
With the DIS_CHECK (channel DB) parameter, you specify whether the check of transferred
data by the FM 352 is to be disabled. If you disable the data check, you must take steps to
verify that only permitted values are transferred. If you transfer illegal values without a check,
the module can behave unexpectedly.
● FALSE: The module checks all data to be transferred
● TRUE: The check of cam parameter data is disabled. This allows the faster integration of
the data to be changed on the FM 352.
Regardless of this setting, the module always checks whether
– the axis is assigned
– the number of cams to be changed (C_QTY) is permitted
– the cam (cam number) to change is valid.
The data are only enabled on the module after having been checked and found faultless.
Any faulty data are rejected.
Effects of the setting
Note
For information on switching characteristics of time-based cams, refer to chapter "Influence
of settings on the sw
itching characteristics of time-based cams (Page 103)".
Reading modified values
You can read the modified values by calling one of the jobs CAM1RD_EN to CAM8RD_EN .
Canceling the setting
The modified values are lost when you restart the module.
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