1156 HEIDENHAIN Technical Manual iTNC 530 HSCI
In the manual modes of operation the axis feed rate is shown instead of the
contouring feed rate.
You can choose between two types of display:
The axis feed rate is shown after you press an axis-direction key. If two keys
are pressed simultaneously, no feed rate is displayed.
If no key is pressed, the smallest axis feed rate is always shown. The PLC
axes are not included in the selection of the smallest feed rate. If more than
one key is pressed simultaneously, a feed rate is also displayed.
Define the type of display in MP7270.
MP7270 Feed rate display in the operating modes MANUAL
OPERATION and ELECTRONIC HANDWHEEL
Input: 0: Display of axis feed rate through pressing an axis direction
key (axis-specific feed rate from MP1020)
1: Display of axis feed rate also before an axis direction key is
pressed (smallest value from MP1020 for all axes)
MP7620 Feed-rate override and spindle speed override
Format: %xxxxxxx
Input: Bit 0 – Feed-rate override if rapid-traverse key is pressed in
Program Run mode:
0: Override not effective
1: Override effective
Bit 1 – Non-functional
Bit 2 – Feed-rate override if rapid-traverse key and machine-
direction button are pressed in Manual mode:
0: Override not effective
1: Override effective
Bit 3 – for TEs without rapid traverse override:
0: Linear characteristic curve for spindle override and feed rate
override; unit depends on bit 4 0..150 or 0..15000
1: Non-linear characteristic curve for spindle override and feed
rate override, unit 0..15000
Bit 4 – for TEs without rapid traverse override:
0: Spindle override and feed rate override with unit 0 to 150
1: Spindle override and feed rate override in steps from 0 to
15000
Bit 3 – for TEs with rapid traverse override:
0: Linear characteristic curve for spindle-speed and feed-rate
override, unit 0..15000
1: Non-linear characteristic curve for spindle override and feed
rate override, unit 0..15000
Bit 4 – for TEs with rapid traverse override:
No effect
Set Reset
W494 Percentage for feed rate override
(NC to PLC)
NC NC
W766 Percentage for feed rate override
(PLC to NC)
NC/PLC NC/PLC
M4180 Rapid traverse programmed (FMAX) NC NC