Parameterization Of Absolute Measuring Systems - Siemens SINUMERIK 840D sl Commissioning Manual

10.5.2

Parameterization of absolute measuring systems

Encoder types
The following encoder types are currently supported:
● Single-turn absolute value encoder
● Multi-turn absolute value encoder
with EnDat protocol and incremental sinusoidal encoder signals A and B, e.g. Haidenhain
EQN 1325.
EQN 1325
The absolute value encoder EQN 1325 from Heidenhain has the following properties:
● EnDat protocol
● PPR count: 2048 = 2
● Positions/revolution: 8192 (13 bits)
● Differentiable revolutions: 4096 (12 bits)
● Encoder signals A/B: 1Vpp sin/cos
Calibration
Convergence of the measuring system with the machine positions is performed by
calibration of the absolute value encoder in absolute measuring systems. For calibration of
the absolute value encoder, see Chapter "Axis Homing".
Rotary measuring systems
An absolute encoder can currently exclusively be used as a motor encoder (indirect
measuring system).
IBN CNC: NCK, PLC, drive
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
(encoder fine resolution)
11
NCK start-up
10.5 Parameterize axis data
129