HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual
Page 194
3 Servo positioning of the NC-axes
Rapid traverse
[m/min]
s
a
[mm]
2
4
6
8
10
2
4
6
8
10
kv
= 2
kv
= 1
kv
= 0,5
12
The maximum feed rate stored in machine parameter MP1010 can be reduced by the PLC.
If the PLC enters a feed value in Doubleword D596 which is lower than that in machine parameter
MP1010, then the value in D596 is effective. If the value which is entered is higher, then MP1010
remains effective. After switching on the control, or an interruption of the running of the PLC, the
Doubleword D596 is pre-loaded with the value 300000.
The rapid traverse (maximum traversing speed) must be adjusted by the desired analogue voltage
(e.g. 9 V) on the servo-amplifier (see section "Commissioning and start-up procedure"). For each
axis-specific rapid traverse there is an analogue voltage which is stored in the machine parameter
MP1050.
The resulting lag error s
a
thus depends on the analogue voltage.
U[V]
s
a
[mm]
2
4
6
8
10
2
4
6
8
10
kv
= 1, Rapid traverse
10 m/min
12
A special feed rate for manual operation (Manual-feed) is stored in machine parameter MP1020. In
general, it is significantly lower than the rapid traverse.