Lenze 9400 - Manual (Page 220)

5 Motor interface
5.9 Monitoring
220
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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5.9.2.3 UL 508-compliant I²xt motor temperature monitoring
The following test steps 1 ... 4 are part of the UL 508C-compliant device acceptance.
They have to be executed successfully during the I²xt motor monitoring.
Test step 1
• Motor overload: 6 x I
rated,mot
(I
rated,mot
: Rated motor current ( C00088 ))
• Trigger time: Max. 20 s after the overload has occurred
Test step 2
• Motor overload: 2 x I
rated,mot
(I
rated,mot
: Rated motor current ( C00088 ))
• Trigger time: Max. 480 s after the overload has occurred
Test step 3
• Motor overload: 1,1 x I
rated,mot
(I
rated,mot
: Rated motor current ( C00088 ))
• In case of a motor field frequency of 10 Hz, the I²xt motor monitoring has to be tripped faster
than with a motor field frequency of 20 Hz.
Code Setting Info
C00128/2 11.8 min Thermal time constant - laminated core/housing
C01195 0 % Percentage of the winding in the final temperature
C00120 100 % Switch-off threshold of motor overload protection (I²xt)
Code Setting Info
C00128/2 27.8 min Thermal time constant - laminated core/housing
C01195 0 % Percentage of the winding in the final temperature
C00120 100 % Switch-off threshold of motor overload protection (I²xt)
Code Setting Info
C01196/1 0 % Speed = 0 (standstill)
C01196/2 < 100 % Permissible motor torque at standstill
C01196/3 20 Hz / C00089 * C00087 Speed n
2
from which on the torque must be reduced
C01196/4 100 % Permissible motor torque at speed n
2
(torque reduction)