
B-63494EN/02 6.PARAMETERS
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1838 Positional deviation limit during movement for each axis in safety signal mode C
[Data type] 2-word axis
[Unit of data] Detection unit
[Valid data range] 0 to 99999999
Set a positional deviation limit during movement for each axis in
safety signal mode C (state in which a guard open request is input, and
the guard is opened) when the dual check safety function is used.
If a positional deviation limit during movement is exceeded during
movement, a servo alarm No.411 is issued, and an immediate stop
(same as an emergency stop) is performed.
In the dual check safety function, the CNC and monitor always check
the position deviation amount on each axis. If the monitor detects that
the position deviation limit is exceeded during moving, a servo alarm
No.475 is issued only in safety signal mode C (state in which a guard
open request is input and the guard is open).
When the guard is open, axis movement is performed at a speed not
exceeding the safety speed. So, usually, set a value smaller than a
positional deviation limit during movement (parameter No. 1828).
#7 #6 #5 #4 #3 #2 #1 #0
1902 0 DCE 0 STP
[Data type] Bit
STP When the power is turned on, a MCC off test is:
0: Conducted. (The warning "PLEASE EXECUTE MCC OFF
TEST" is displayed at power-on, and MCC off Test execution
request signal (RQT) is output.)
1: Not conducted.
CAUTION
1 The STP parameter is used temporarily, for
example, when a MCC off Test is not to be made at
power-on as in the case of machine adjustment.
Usually, set STP = 0.
2 Even when STP = 1, a MCC off Test is required if
the power is turned 24 hours or more after the
completion of the previous MCC off Test.
WARNING
Set STP = 0 after the STP parameter is used
temporarily as in the case of machine adjustment.
DCE The dual check safety function is:
0: Disabled.
1: Enabled.