HEIDENHAIN MANUALplus 620 Technical Manual page 1567

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Gear shifting

January 2012

You control the gear shifting through PLC outputs. The gear range is

determined by the MP_nominalSpeed of each gear-range parameter set. The

output of the gear range is defined in MP_condition. Use MP_gearStop to

define if the spindle speed should automatically be reduced to 0 when shifting

between gears.

Configure a separate spindle parameter set for each gear stage.

Use MP_gearCode to define a word marker, in which the gear range is

transmitted to the PLC during decoding.

Use the "KeySynonym" function to create new parameter sets rapidly and

easily. (in the configuration editor under KeySynonym ->

CfgKeySynonym). Only the first parameter set must be fully defined. All

further parameters sets are "linked" to the first set (MP_relatedTo), so you

only have to describe the differing parameters. For more information,

please refer to „The KeySynonym Function" on page 377.

In the list parameter MP_gearSpeed0, enter the names of spindle

parameters sets for the operating mode 0. These parameter sets define the

gear ranges for operating mode 0 if it is selected with PLC Module 9163.

(See "Switching the operating modes" on page 1029.)

Proceed in the same manner for operating mode 1 and enter the parameter

sets in MP_gearSpeed1.

Each of the lists must be sorted in ascending order, with the smallest gear

shaft speed at the top. Gear ranges are not supported if the list is missing or

Use the CfgFeedLimits configuration datum of a parameter set to define

the minimum and maximum spindle shaft speed for each gear range.

Use the parameter MP_nominalSpeed (CfgFeedLimits) to define the

rated speed for each gear range.

For digitally controlled spindles:

Use the parameter MP_gearShiftSpeed to define the gear shifting speed

for each gear range.

For analog controlled spindles:

Use the optional parameter MP_gearShiftVoltage to define for each gear

range the nominal-voltage output for gear shifting.

8.7 S Function (S Strobe)