Lenze IMSS500+ Simple Servo 500 600 i1000 - Manual (Page 47)

SimpleServo 500/600/i1000 User Manual Rev 3.4
TABLE 14 PARAMETERS ACTIVE FOR SELECTED DRIVE OPERATION MODE
Mode
Parameter Torque
mode Velocity
mode Step
and
direc
tion
mod
e
Analog
input
(current
scale) X
Analog
input
(velocity
scale) X
Enable
accel/dece
l limits X
Accel limit X
Decel limit X
Steps per
revolution X
Step input
type X
Reference X X
Fault reset X X X
6.2.2 Current Limit
The CURRENT LIMIT setting determines the nominal current, in amps RMS per phase.
6.2.3 Peak current limit
Peak current sets Motor phase current in Amps RMS allowed for 2 Sec. After 2 Sec expires current
limit will be folded back to value set in Current Limit parameter. When current demand drops below
nominal current for 2 Sec drive will automatically enable peak current level again. This technique
allows you to get high peak torque for demanding fast moves and fast start/stop operations with high
regulation bandwidth.
6.2.4 Analog input scale( Current scale)
This parameter sets analog input sensitivity for current reference used when drive operates in Torque
mode. Units for this parameter are A/Volt. To calculate value use following formula:
Iscale = Imax / Vin max
Imax
maximum desired output current in A, (motor phase current RMS)
Vin max max voltage fed to analog input at Imax
Example:
Imax = 5A (phase RMS)
Vin max = 10V
47
Iscale = Imax / Vin max = 5A / 10V = 0.5 A / Volt -> value to enter.