Calculation mode for actual position (P-AXIS-00318)

If P-AXIS-00315 is set in this parameter the calculation mode for the actual position has to be set. There are two modes.

Variable name

Type

Permissible range

Axis type

Dimension

read_abs_pos_mode

ISG_CHAR

DRIVE_POS, COMBINED

T, R

----

String (Mode)

Significance

DRIVE_POS

The absolute position transferred from the drive is used as actual position. If necessary a format conversion is made. (Default).

COMBINED

Bits 31 ... p1042 are taken from the drives actual position, bits 0 … p1042 –1 are taken from the position value in GX_XIST1.

Calculation mode for actual position (P-AXIS-00318) 1:

CAUTION

Calculation mode COMBINED may only be used if the motor encoder delivers an absolute position within one motor revolution. This property of the encoder can be determined with the value of drive parameter P979 subindex 1. If bit 1 (bitmask 0x02) is set the encoder delivers an absolute position within one motor revolution. See also the drive manufacturers documentation!