HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 131)

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TNC 407/TNC 415/TNC 425 1 Machine axes 01.98
1 Machine axes
The HEIDENHAIN contouring controls TNC 407/TNC 415 permit the control of up to five machine
axes and the main spindle (see also under "Servo positioning").
The machine parameter MP10 can be set to determine which axes should be operational on the
machine. If necessary, MP10 can be used to select all the axes functions (control, display, pass over
reference marks etc.)
MP10 Active axes
Entry range: %xxxxx
Bit 0 X axis 0 = not active
Bit 1 Y axis 1 = active
Bit 2 Z axis
Bit 3 4th axis
Bit 4 5th axis
1.1 Measuring systems
Incremental measuring systems can be attached to the HEIDENHAIN contouring controls.
See also chapter "Mounting and electrical installation ".
1.1.1 Signal period
The signal period of the attached measuring system in
µ
m or
1
1000
°
is entered in the machine
parameter MP330.x .
Linear measurement
For linear measurement systems with sinusoidal output signals the signal period is the same as
the graduation period:
Signal period (~) = grating period
The standard-linear measurement systems from HEIDENHAIN have a graduation period of 20
µ
m
(LS models; except for LS 101 and LS 405: 10
µ
m) and 100
µ
m (LB model) .
If linear measurement is performed by rotary encoder and ballscrew, the line count of the rotary
encoder (see encoder technical data) as well as the ballscrew pitch must be considered when
calculating the signal period:
Signal period (~) =
ballscrew pitch [mm] • 1000 [mm / mm]
line count
Up to 3 decimal places can be entered in MP330.x.