HEIDENHAIN iTNC 530 Service Manual page 678

Settings and
evaluation
The limit values for the I
Limit values
are handled by the NC side of the control and are composed of the following:
3 – 678
MP 2302.x contains the factor for the I
The input value is a factor for the reference current (1 = 100% of the motor's standstill current
or rated current).
Values smaller than 1 provide increased protection (I
higher than 1 less protection for the motor.
Note
2
If you enter zero, the I t monitoring for the motor (not for the power module) is switched off.
MP 2304.x contains the factor for the I
The input value is a factor of the power module's rated current (1 = 100 % of the power
module's rated current).
Values smaller than 1 provide increased protection (I
higher than 1 causes less protection for the power module.
Note
2
If you enter zero, the I t monitoring for the power module (not for the motor) is switched off.
All required entries for calculation of a temperature model have to be available in the motor
table or power module table.
The OEM should use module 9160 to interrorgate the I
measures (See "Interrogation through PLC module" on page 3 – 679).
2
t value (dimension for the permissible temperature in the device [%])
Value exceeds 100 %:
2
An axis-specific I t early warning is sent to the PLC (for evaluation and possible
countermeasures such as reduction of the feed rate with error message by PLC program with
the aid of PLC Module 9160).
If the value does not exceed 110% and falls below 90%, the axis-specific early warning is
reset.
110%:
An NC stop is triggered and the drives are switched off.
Note
In the oscilloscope you can display the current value of the I
power module, as well as the current load of the drive.
2
t monitoring of the motor.
2
t cause the monitor to respond), values
2
t monitoring of the power module.
2
t cause the monitor to respond), values
2
t monitoring and take suitable
2
t monitoring of the motor and
HEIDENHAIN Service Manual iTNC 530