Electronic Thermal Overload Relay Selection (Ol1); Electronic Thermal Characteristic - Delta Electronics AC Motor Drive VFD-E User Manual

This parameter sets the time for how long over-torque must be detected before "OL2" is
displayed.
06.06

Electronic Thermal Overload Relay Selection (OL1)

Settings
This function is used to protect the motor from overloading or overheating.
100
80
60
40
20
25
rated frequency of the motor %
06.07

Electronic Thermal Characteristic

Settings
The parameter determines the time required for activating the I
function. The graph below shows I
Operation
time (seconds)
350
300
250
200
150
100
50
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
0 Operate with a Standard Motor (self-cooled by fan)
1 Operate with a Special Motor (forced external cooling)
2 Operation disabled
50 100
Standard motor
(self-cooled by fan)
30 to 600 sec
2
0 50 100
100
80
60
40
20
150
t curves for 150% output power for 1 minute.
50Hz or more
10Hz
5Hz
150 200
Chapter 4 Parameters|
Factory Setting: 2
25 50 100
rated frequency of the motor %
Special Motor
(forced external cooling)
Factory Setting: 60
2
t electronic thermal protection
Load
factor (%)
250
150
Unit: 1
4-93