QT set tachometer gain
IMM PGM MIP
USAGE ♦ ♦
SYNTAX xxQTnn or xxQT?
PARAMETERS
Description xx [ int ] - axis number
nn [float] - tachometer gain
Range xx - 1 to MAX AXES
nn - 0 to 20
or ? to read present setting
Units xx - none
nn - Volts/Krpm
Defaults xx missing: error 37, AXIS NUMBER MISSING
out of range: error 9, AXIS NUMBER OUT OF RANGE
nn missing: error 38, COMMAND PARAMETER MISSING
out of range: error xx2, PARAMETER OUT OF RANGE
DESCRIPTION This command is used to set the DC motor tachometer gain for a Newport
Unidrive compatible programmable driver axis.
This command should be used in conjunction with QG (gear constant) command.
This command must to be followed by the QD update driver command to take
affect.
RETURNS If the “?” sign takes the place of nn value, this command reports the current
setting
REL. COMMANDS QD - update driver
QS - set microstep factor
QG - set gear constant
QI - set motor maximum current
QV - set average motor voltage
EXAMPLE 2QT? | read tachometer gain setting of axis # 2
7.0 | controller returns a value of 7.0 V/Krpm for axis #2
2QT 6.5 | set tachometer gain value of 6.5 V/Krpm for axis #2
2QG 0.3937 | set gear constant to 0.3937 rev / unit for axis #2
2QD | update programmable driver with latest settings for axis #2
SM | save all controller settings to non-volatile memory
3-120 Section 3 – Remote Mode
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