Lenze IMSS500+ Simple Servo 500 600 i1000 - Manual (Page 50)

SimpleServo 500/600/i1000 User Manual Rev 3.4
6.3.5 Analog output velocity scale (mV/RPM)
Applies scale for functions representing VELOCITY values.
6.3.6 Analog input offset parameter
Allows you to adjust system zero. It works as balance trim potentiometer found in analog drives.
6.3.7 Analog input dead band
Allows you to set voltage window (in mV) in such manner that any voltage value in that window will be
treated as zero. This is useful if your system zero voltage drifts making drive shaft drift when
commanded to zero.
6.3.8 Adjust analog voltage offset
This control button is useful to allow the drive to automatically adjust offset. To use it set system
output to zero and click this button. Any offset voltage at analog input will be adjusted and stored in
drive’s memory.
6.4 Velocity Limits Group
These parameters are active in Velocity Mode Only.
• Zero speed (velocity mode only)
• Speed window (velocity mode only)
• At speed (velocity mode only)
ZERO SPEED specifies the lower threshold for motor zero speed in RPM. When motor shaft speed
is below specified value zero speed condition is set to true in internal controller logic. Zero speed
condition can also trigger programmable digital output, if selected.
SPEED WINDOW
speed window width
AT SPEED speed window center
These two parameters specify speed limits. If motor shaft speed is within these limits then condition
AT SPEED set to true in internal controller logic. AT SPEED condition can also trigger programmable
digital output, if selected.
For example if “AT SPEED” is set for 1000 Rpm, and the “SPEED WINDOW” is set for 100, then “AT
SPEED” will be true when motor velocity is between 950 –1050 Rpm.
6.5 Position limits
• Position error
• Max error time
POSITION ERROR specifies maximum allowable error (in motor quadrature encoder counts)
before Position Error Excess fault generated.
MAX ERROR TIME specifies maximum allowable time (in mS) during which position error can
exceed value set for POSITION ERROR parameter before Position Error
Excess fault generated.
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