6 – 502 HEIDENHAIN Technical Manual TNC 426, TNC 430
6.24.3 Analog Axes
Temporary input
values
7
77
7 Enter the following temporary input values when you begin
Adjusting the servo
amplifier
Please note:
Procedure:
7
77
7 Disconnect the nominal-value connection between the servo amplifier and
the logic unit.
7
77
7 Short-circuit the nominal value input on the servo amplifier.
The input must have a 0 V voltage.
7
77
7 Activate control enabling at the servo amplifier.
7
77
7 Connect the supply voltage to the servo amplifier.
7
77
7 Perform a coarse offset adjustment:
• If the axis moves in spite of the short-circuited nominal value input, you
must adjust the offset potentiometer until the axis stops moving.
7
77
7 Remove the jumper at the nominal value input and establish a nominal-value
connection to the logic unit.
MP Temporary input
value
Meaning
MP1030.x 0.01 Positioning window
MP1090.x 1 Maximum permissible jerk on the tool path
MP1092 <Maximum rapid
traverse>
Feed rate threshold from which MP1090.1
becomes effective
MP1110.x 2.0 Standstill monitoring
MP1140.x 10 Movement monitoring
MP1410.x 0.5 Position monitoring in operation with
velocity feedforward control (erasable)
MP1420.x 2 Position monitoring in operation with
velocity feedforward control
(EMERGENCY STOP)
MP1510.x 1 k
v
factor for velocity feedforward control
MP1710.x 50 Position monitoring in operation with
following error (erasable)
MP1720.x 50 Position monitoring in operation with
following error (EMERGENCY STOP)
MP1810.x 1 k
v
factor for control with following error
MP1820.x 1 Multiplier for the k
v
factor
MP1830.x 100 Characteristic curve kink point
Note
For analog axes, you must adjust the servo amplifier before you optimize
the position controller.
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