Manual and Handwheel Travel (H1)
8.5 Fixed-point approach in JOG
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
149
8.5.2 Functionality
Procedure
Procedure in "Approaching fixed point in JOG"
● Selection of JOG mode
● Enabling the "Approach fixed point in JOG" function
● Traversing of the machine axis with traverse keys or handwheel
Activation
The PLC sets the interface signal after the "Approach fixed point in JOG" function has been
selected:
"JOG - Approach fixed point" (V380x 1001.0-2)
The number of the fixed point to be approached is output using bit 0 - 2 in binary code. The
NC confirms activation with the following interface signal as soon as the function takes
effect:
"JOG - Approaching fixed point active" (V390x 1001.0-2)
Sequence
The actual traversing is started with the traverse keys or the handwheel in the direction of
the approaching fixed point.
The selected machine axis traverses till it comes to an automatic standstill at the fixed point.
The corresponding NC/PLC interface signal is sent on reaching the fixed point with "Exact
stop fine":
"JOG - Approaching fixed point reached" (V390x 1001.3-5)
This display signal is also reported if the axis reaches the fixed point position in the machine
coordinate system using other methods (e.g. NC program, synchronized action) at the
setpoint end, and comes to a standstill at the actual-value end within the "Exact stop fine"
tolerance window (MD36010 STOP_LIMIT_FINE)
Movement in the opposite direction
The response while traversing in the opposite direction (i.e. in the opposite direction to the
one used when approaching the fixed point) depends on the setting of bit 2 in the following
machine data:
MD10735 JOG_MODE_MASK (settings for JOG mode)
Traversing in the opposite direction is only possible if bit 2 is set.
Traversing in the opposite direction is blocked if bit 2 is not set, and the following channel
status message is output if an attempt is made (using the traversing keys or the handwheel)
to traverse in the opposite direction to the one used when approaching the fixed point:
"JOG: <Axis> direction blocked"
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