Actual-To-Nominal Value Transfer - HEIDENHAIN iTNC 530 HSCI Technical Manual

Hide thumbs Also See for iTNC 530 HSCI:

Table of Contents

Actual-to-nominal

value transfer

During actual-to-nominal value transfer, the current position is saved as the

nominal position value. This becomes necessary, for example, if the axis has

been moved when the position control loop is open.

There are two ways to turn the actual position into the nominal position:

To transfer the actual position value in the Manual and

Electronic Handwheel modes, set the corresponding bit in W1044/W1140.

To transfer the actual position in all operating modes, use Module 9145.

Ensure that actual-to-nominal value transfer does not occur continually,

since the position monitoring will not be able to detect any uncontrolled

machine movements. In this case no safe machine operation would be

W1044/1140 Actual-to-nominal value transfer

Axis-specific: Dependence on MP4020

0: No actual-to-nominal value transfer

1: Actual-to-nominal value transfer

Module 9145 Actual-to-nominal value transfer

An actual-to-nominal value transfer for NC axes, or for PLC and NC axes

together, is possible only if the control is not active (M4176 = 0) or if an M/S/

T/T2/G strobe is pending.

The module can always be called for an actual-to-nominal transfer only for PLC

For a transfer via M strobe, MP7440 bit 2 must not be set. For a transfer via

S/G strobe, MP3030 must not be set.

B/W/D/K <Axes bit-encoded>

Actual-to-nominal value transfer performed

Error code in W1022

Invalid axis number

Missing M/S/T/T2/G strobe in M4176 = 1

Module was called in a spawn or submit job

6.8 The control loop