Baumer Hubner HMC16 Series Mounting And Operating Instructions - Page 16

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Baumer Hubner HMC16 Series Mounting And Operating Instructions

ELECTRICAL CONNECTION / FUNCTIONAL PRINCIPLE HMCP16

ELECTRICAL CONNECTION

6.1

Functional principle HMCP16

The differential SinCos encoder signals, connected to the input, are converted into TTL,

HTL, SinCos output signals with interpolated pulses/cycles and/or SSI output (speed and

position), frequency output� The zero pulse is adjusted as well if available�

Zero pulse signals R+ and R- (output 1 and 2) are determined on the basis of the input

signals R+ and R- of the inputs 1 and 2 up to a speed of ~1000 rpm� At higher speeds R+

and R- are synthesised internally�

To achieve a reliable high resolution, automatic offset and amplitude adjustment for the

incoming SinCos signals and oversampling algorithms are applied�

The SinCos signals are sampled and digitized with 1 MHz and digitally pre-filtered. To-

gether with the downstream oversampling filter for the calculated position, a high signal

quality of the multiplied output signals is achieved, even if the input signals are noisy or

distorted by hazardous peaks�

The SSI output, if available, has two SSI channels SSI1 and SSI2� The exact division of

bits and the scaling you can find in section

SSI1 transmits a speed word included error bit and parity bit� SSI2 transmits angle infor-

mations� These consists an incremental 14 bit position word, a 14 bit position word for the

reference index Ri and a Ri seen bit, an error bit and a parity bit�

After turning on the device the incremental position is 0� Each revolution is passing

through a value range between 0 up to 2

After turning on the device the Ri seen bit is 0� The Ri seen bit gets to 1 when a valid

reference index Ri is detected� Then the active incremental position was safed and is

provided as Ri position�

If there's a detected problem with the input signals the error bit gets to 1�

For the dual version (two inputs) the input SinCos encoder signals were taken and inter-

nally together cleared to achieve a runout error compensation�

If the system is equipped with an error adjustment table (HMC16T1 ��) the accuracy of

the complete system is increased over again� This error adjustment table is aligned to the

HMCK16T1 �� and the HMCP16T1 �� which have the same serial number� Please note

that the error adjustment table only can cause an output signal amelioration when the

adapted HMCK16T1 �� is connected to the HMCP16T1 �� with the same serial number�

Furthermore the optimized output signal amelioration is only possible when output 1 of

the HMCK16T1 �� is connected with the input 1 of the HMCP16T1 �� and, if available, the

output 2 of the HMCK16T1 �� is connected with the input 2 of the HMCP16T1 ��

12/40

10.1�

-1�

MB168T1EN - 11184527, 19A2, Baumer_HMC16-T1_II_EN