Possible Configurations For The Potentiometers Of A Te 6Xx - HEIDENHAIN iTNC 530 HSCI Technical Manual

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Possible configurations for the potentiometers of a TE 6xx

The override potentiometers of a TE 6xx can be configured in machine
parameter MP7620 bit 5 and bit 9. If bit 5 is set in MP7620, the potentiometers
are evaluated as feed-rate and rapid-traverse override potentiometers. If an
HSCI TE keyboard unit with three override potentiometers (spindle, rapid
traverse and feed rate) is used, bit 9 must be set in MP7620. If bit 5 and bit 9
are both set at the same time, an error message is triggered due to invalid
configuration.
If you configure a rapid-traverse override (bit 5), the characteristic curve is
nonlinear (range 0 to 10000/15000), regardless of bit 3. Then the nonlinear
characteristic curve applies to all overrides.
For the evaluation of the potentiometers, the following distinctions are made
between HSCI and non-HSCI hardware:
TE for systems without HSCI

Configuration with feed-rate and rapid-traverse overrides (MP7620, bit 5).
The spindle-speed override is used as rapid-traverse override. The NC keys
are used to realize the spindle speed override. If hardware for systems
without HSCI is used, bit 9 is ignored.
TE for systems without HSCI

Configuration for three potentiometers with feed-rate, spindle-speed and
rapid-traverse overrides (MP7620, bit 5). This configuration has no effect.
The potentiometers are evaluated, as usual, as feed-rate and spindle-speed
overrides. Bit 9 is ignored.
TE for systems with HSCI

Configuration with feed-rate and rapid-traverse overrides (MP7620, bit 5).
The spindle-speed override input S (X52) on the rear of the TE is not
evaluated. The rapid-traverse override must be connected to the provided
connector E (X61, X62). There are no NC keys for spindle-speed override.
Machine operating panel keys must be used instead, and the function must
be realized in the PLC program (the PLC program must transmit the
information to W764).
The + , – and 100% keys for spindle-speed override can be snapped on to
an HSCI machine operating panel. Contrary to keyboards for systems
without HSCI, these keys are only available as PLC inputs, and not as NC
keys. They are not evaluated automatically by the NC software. The PLC
program must evaluate the keys and transmit the calculated value to the NC
in W764 (spindle-speed override). The NC software limits this value
depending on MP3310.0 (max. spindle-speed override value) and MP3310.1
(minimum spindle-speed override value).
TE with three potentiometers for systems with HSCI

Configuration for three potentiometers with feed-rate, spindle-speed and
rapid-traverse overrides (MP7620, bit 9): Feed-rate, spindle-speed and rapid-
traverse overrides are evaluated.
MP_7620 Bit#9 – HSCI keyboards with three potentiometers
Input: 0: Keyboard with two potentiometers
1: HSCI keyboard with three potentiometers
HEIDENHAIN Technical Manual iTNC 530 HSCI