Lenze 8615E - Manual (Page 100)

98
7.2.2 I ²
⋅
t monitoring
The motor temperature can be calculated and monitored by the
inverter. Set the motor monitoring as follows:
•
Enter the motor frame size under code C086 together with the
kind of ventilation.
•
Set C088 to the rated motor current.
•
Select the motor protection under code C119
(I
² ⋅
t monitoring).
•
Activate the motor protection under code C120.
If the motor current permanently exceeds the shown characteristic,
fault OC6 is indicated and the controller is inhibited.
This is not a full motor protection. When disconnecting and
reconnecting the inverter, the calculated motor temperature is
reset. If the connected motor is already heated and still overloaded,
overheat cannot be excluded.
Code Parameter Meaning Acceptance
C086* -0-
-1-
-2-
-3-
-4-
-5-
-6-
-7-
-8-
-9-
-10-
-100-
-101-
-102-
-103-
-104-
-105-
-106-
-107-
-108-
-109-
-110- Frame size 71, self-ventilated
Frame size 80, self-ventilated
Frame size 90, self-ventilated
Frame size 100, self-ventilated
Frame size 112, self-ventilated
Frame size 132, self-ventilated
Frame size 160, self-ventilated
Frame size 180, self-ventilated
Frame size 200, self-ventilated
Frame size 225, self-ventilated
Frame size 250, self-ventilated
Frame size 71, forced-ventilated
Frame size 80, forced-ventilated
Frame size 90, forced-ventilated
Frame size 100, forced-ventilated
Frame size 112, forced-ventilated
Frame size 132, forced-ventilated
Frame size 160, forced-ventilated
Frame size 180, forced-ventilated
Frame size 200, forced-ventilated
Frame size 225, forced-ventilated
Frame size 250, forced-ventilated SH + PRG
C088 Rated inverter current
˝0.3...2.0
⋅
I Ncontroller
Rated motor current SH + PRG
C119 -16-
... Motor protection
Other protections SH + PRG
C120 -0-
-1- Monitoring is not active
Monitoring is active SH + PRG
* extended code set