Baumer HMG11 N29 Manuel - Page 22

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4.6.9.

Scaling Functionality

Parameter setting „Scaling Functionality on" will consider the settings in „Measuring Units per

Revolution" and „Total Measuring Range".

Parameter setting „ Scaling Functionality off" will always consider the maximum „ Measuring Units

per Revolution " and maximum „ Total Measuring Range " of the basic encoder.

This functionality is only supported in encoder class 4. (see chapter 5.6.1).

Encoder class 3 implicates „scaling off".

4.6.10. Preset affects G1_XIST1

If „yes", the preset will have an effect on both position values G1_XIST1 and G1_XIST2. If „no", there

will be only an effect on position value G1_XIST2.

In compatibility mode according to V3.1, the preset will always affect position value G1_XIST2 only.

Setting is of no importance when using standard telegrams 100 to 102.

4.6.11. Alarm Channel Control

Compatibility mode according to V3.1 enables optional suppression of transmitting channel-specific

diagnostic alarms, while in profile V4.1 transmission of channel-specific diagnostic alarms is always

enabled.

4.6.12. Maximum Master Sign-of-Life Failures

Compatibility mode according to profile V3.1:

Parameter for maximum tolerated master life sign failures (MLS) monitoring.

Setting „255" means no monitoring („off") .

Acyclic PROFIdrive parameter 925 is without effect.

Mode according to profile V4.1:

Total of tolerated errors is „1" by default (factory settings) but can be changed in acyclic PROFIdrive

parameter 925. Setting "255" means no monitoring ("off").

Encoder parameter „ Maximum Master Sign-of-Life Failures " is without effect.

4.6.13. Important Note for Multiturn Encoder Operation

„Endless Operation" is automatically supported where required.

Thus, there are no special requirements for the encoder parameters "total measuring range" and

"measuring units per revolution" to stand in a certain ratio.

With endless operation active, the encoder shaft must not rotate when the encoder is

unpowered. In those cases where powerless motion cannot be avoided, the encoder has to be

referenced (presetted) after every power-up. With Endless Operation inactive, the encoder shaft may

rotate unlimitedly when encoder is not powered.

How to determine if „Endless Operation" is in use together with given parameters:

• Multiply the encoder's „max. possible revolutions" (depending on encoder 16 bit = 65536 or 13 bit

= 8192) by your parameter setting „measuring units per revolution".

• Divide this value by your parameter setting „total measuring range".

• If there is a division remainder, endless operation is in use.

Example for parameters without endless operation:

Maximum possible revolutions

Measuring units per revolution

Total measuring range

Calculation:

Baumer_BUDE-PROFINET_MA_EN.docx

14.06.2016 / bja

65536

(16 bit multiturn)

3600

29.491.200

(8192 x 3600)

65536 x 3600 / 29.491.200 = 8 (no remainder)

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