Lenze i55 Series User Manual

Parameter Name / value range / [default seng] Info
0x2D4B:002
(P308.02)
Motor overload monitoring (i²*t): Speed compensa-
on
(Motor overload: Speed comp.)
Use this funcon to protect motors that are actuated at a speed below
40 Hz.
•
UL-compliant operaon with motor overload protecon requires the
seng "On [0]"!
0 On Release me for motor overload monitoring is reduced in order to com-
pensate for the reduced cooling of naturally venlated AC inducon
motors during operaon at low speed.
1 O Funcon deacvated, no reducon of the motor overload monitoring
release me. May require an external motor overload protecon for the
UL-compliant operaon.
0x2D4B:003
(P308.03)
Motor overload monitoring (i²*t): Response
(Motor overload: Response)
•
For further possible sengs, see parameter
0x2D45:001 (P310.01). ^ 223
Selecon of the response to the triggering of motor overload monitor-
ing.
•
UL-compliant operaon with motor overload protecon requires the
seng "error [3]"!
•
If monitoring is deacvated by the seng 0x2D4B:003 (P308.03) =
"No response [0]", no motor overload protecon is acve. In this case,
an external motor overload protecon can be provided by the user for
a UL-compliant operaon.
Associated error code:
•
9040 | 0x2350 - CiA: i²*t overload (thermal state)
3 Fault
0x2D4B:005 Motor overload monitoring (i²*t): Thermal load
•
Read only
Display of the value of the internal i²*t integrator.
•
37500 ≡ 100 % thermal load
•
When power is switched o, this value is saved in the internal
EEPROM.
•
When power is switched on, the saved value is reloaded into the i²*t
integrator.
•
The internal i²*t integrator detects the thermal load based on the load
condions even if the motor overload monitoring is deacvated.
Motor control
Motor protecon
Motor overload monitoring (i²*t)
218

Lenze i55 Series Specifications

General

Brand	Lenze
Model	i55 Series
Category	Inverter
Language	English