Specifications

Protections Ver: 0002 E - 9
3. EXTERNAL MONITORING OF THE REAL I
2
T
LEVELS.
The user may know the effort level of the drive by checking the value of the I
2
t product through
the variable: realvalue: KV32 -F01109- I2tDrive
The user may know the effort level of the motor by checking the value of the I
2
t product
through the variable: realvalue: KV36 -F01111- I2tMotor
These values are given as "percentage used over the maximum". In software versions prior to
V04.01 the units were absolute and it used two more parameters.
To determine whether a duty cycle demands a bearable degree of effort indefinitely from the
servo system (drive+motor), it has to be brought to the rated running temperature and then
execute that cycle.
By editing these variables: KV32 -F01109- and KV36 -F01111-, it is possible to simulate an
"increase" of the temperature of the servo. Later, execute a test cycle. The I
2
t calculation will
determine whether the servo system withstands or not that particular cycle.
The oscilloscope integrated into the WinDDSSetup may be used to display the KV32 -F01109-
and KV36 -F01111- variables during the cycle being analyzed. Then, calculate the I
2
t product
over the graph and determine whether the servo system can withstand it or not.