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6. COMMAND STRUCTURE
LH
SYSTEM CONTROL COMMANDS
LIMITS HIGH
This limits high command sets the overtravel limit switches so they are active high.
For instance, the overtravel occurs when the input level is high. See the AP
Command on page 6-24 to preserve the LH settings as the Power up/Reset
modes.
MODE
AX - AS
AA
AM
AA/CD
QUEUE REQUIREMENTS
Min (pf)
Max (pn/cn)
1
1
1
1
1
1
Not valid
Not Valid
Custom ramp
1
1
1
Not Valid
Example:
Select the limit switch high true condition for the X axis.
Enter:
AX LH
Example:
Select a high true limit condition for the Z and U axes.
Enter:
AA LH,,1,,1;
LL
LIMITS LOW
The LL command specifies that overtravel occurs when the limit input signal is low
(active low). This is the factory default mode. See the AP Command on page 624 to preserve the LL settings as the Power up/Reset mode.
MODE
AX - AS
AA
AM
AA/CD
QUEUE REQUIREMENTS
Min (pf)
Max (pn/cn)
1
1
1
1
1
1
Not valid
Not Valid
Custom ramp
1
1
1
Not Valid
Example:
Select the limit switch low true condition for the X axis.
Enter:
AX LL
Example:
Select a low true limit condition for the Z and U axes.
Enter:
AA LL,,1,,1;
PC68 User’s Manual
6-17