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XYZ Machine Tools Ltd
XYZ Bed Mill Safety, Installation, Maintenance, Service & Parts List Manual
Z
Motor encoder reading
Feedrate
the maximum feedrate attained
Z -
X
nothing (should be 0)
Y
nothing (should be 0)
Z
Motor encoder reading
Feedrate
the maximum feedrate attained
Interpretation of the resulting values displayed:
The values for the encoder displays should be in the range of 75 mm to 125 mm.
If the motor encoder and scale reading is not within this value, then the one that is out of
specification may be the problem. If one of the encoders is not reading then it will need to
be replaced.
The feedrate should be a minimum of 4560 mmpm for mechanical hand wheel machines and
7620 mmpm for electronic hand wheel machines. The SMX2500 will run a maximum of 4560
mmpm.
If the feedrate is less than these values or inconsistent in both directions, check the incoming
AC voltage and mechanics of the drive train.
4.8.2.4
CODE 123: Calibration
See Section 5.2.2.1 for a further explanation of this code.
4.8.2.5
CODE 127: Set X or Y Backlash Constant
See Section 5.22 for a further explanation of this code.
4.8.2.6
CODE 128: Input Backlash Constant
Code 128 allows you to enter the backlash values for each axis. It displays the value after it enters.
This code is only used on machines with motor encoders only.
4.8.2.7
Code 304: Toggle X Secondary Feedback Scale On/Off
This service code toggles the X secondary feedback scale on or off. It is used to configure the
machine and also is a useful tool for troubleshooting. Code 313 (configuration file) displays whether
the sensors have been turned on or off. The line labelled secondary feedback explains which scales
are turned on. This line can read any one of the following:
0 = Scale turned off
1 = X scale turned on only
2 = Y scale turned on only
3 = both X and Y scale turned on.
4.8.2.8
Code 305: Toggle Y Secondary Feedback Scale On/Off
This service code toggles the Y scale on or off. See Code 304 (section 5.2.4) for further explanation.
4.8.2.9
Code 312: Toggles Limit Switch On/Off
This code turns the limit switches on and off. It is strongly recommended to leave limit switches on.
4.8.2.10
Code 321: Reverse Y Position Secondary Feedback Direction
This service code reverses the direction of the encoder. It may be needed if scales are mounted on
different sides of the machine.
4.8.2.11
Code 322: Reverse X Position Secondary Feedback Direction
This service code reverses the direction of the encoder. It may be needed if scales are mounted on
different sides of the machine.
4.8.2.12
Code 325: Reverse Quill Secondary Feedback Direction
This service code reverses the direction of the encoder.
