Speed Encoders; Introduction - HEIDENHAIN iTNC 530 Service Manual

18.2 Speed Encoders

18.2.1 Introduction

Speed encoders in motors are also referred to as motor encoders.
They report positions and movements of the axes and spindles to the control.
iTNC 530 operates with incremental and absolute encoders.
Encoders with one reference mark or distance-coded reference marks and with EnDat interface
are permissible.
Following speed encoder inputs are located on the CC 422 or CC 424 (B):
Speed encoder
inputs
For digital axes the speed encoders are always monitored!
Monitoring of
rotary encoders
MP 100 is read from the right to the left and contains the information which axis is the first, the
Assignment of
second, the third axis, etc.
speed encoders
The inputs of the speed encoders for the CC 422 and the CC 424 (B) are assigned in different
machine parameters.
July 2010
X15 to X20
X80 to X87 (depending on the expansion stage)
Caution
MP 100 must not be changed!
Note
MP 112.x is not active for the CC 424 (B)!
The encoder inputs and PWM outputs are exclusively selected via MP120.x/MP121.x.!
(In the special case that a second spindle is used on a power module, MP 113.x is still
applicable).
Assignment of speed encoder inputs in
the machine parameters
CC422 Machine parameter
CC 424 (B) Machine parameter
Note
CC 422:
As of MP 112.6 (7th axis) the connectors as of X80 can be allocated but not MP 112.0 to
MP 112.5.
Axes Spindles
MP 112.x MP 113.x
MP 120.x MP 121.x
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