Delta VFD022EL43W - Over-Torque Detection Time; Electronic Thermal Overload Relay Selection (OL1); Electronic Thermal Characteristic; Present Fault Record

Chapter 4 Parameters  VFD-EL-W
4-63
 This setting is proportional to the Rated Output Current of the drive.
06.05
Over-torque Detection Time Unit: 0.1
Settings 0.1–60.0 sec. Default: 0.1
 Sets the length of time that over-torque must be detected before “OL2” displays.
 Over-torque is detected when the following occurs:
1. The output current exceeds the Over-torque Detection Level (Pr.06.04).
2. The over-toque time exceeds the Over-torque Detection Time (Pr.06.05).
If a multi-function output terminal is set to over-torque detection (Pr.03.00=4) , the contact is “closed”.
Refer to Pr.03.00 for details.
06.06
Electronic Thermal Overload Relay Selection (OL1)
Default: 2
Settings 0 Standard Motor (self-cooled by fan)
1 Special Motor (forced external cooling)
2 Disable
 Sets the operation of the electronic thermal overload relay that protects the motor from overloading or
overheating. When the motor (self-cooled by fan) operates in low frequency, overloads rarely happen. Refer to
the following figures.
40
20
60
80
100
25 50
100
150
rated frequen cy of the motor %
rated current of the motor%
Standard motor
(self-cooled by fan)
rated frequ ency of the mo tor %
rated current of the motor%
Special Motor
(forced external cooling)
25 50
100
150
40
20
60
80
100
06.07
Electronic Thermal Characteristic Unit: 1
Settings 30–600 sec Default: 60
 Determines the time required to activate the I
2
t electronic thermal protection function. The figure below shows
I
2
t curves for 150% output power for one minute.
350
50Hz or more
10Hz
5Hz
0
50
100
150
250
200
300
250
200
150
100
50
Operation
time (seconds)
Load
factor (%)
06.08 Present Fault Record
06.09 Second Most Recent Fault Record
06.10 Third Most Recent Fault Record
06.11 Fourth Most Recent Fault Record
06.12 Fifth Most Recent Fault Record
Display 0–40 Default: 0
Readings 0 No fault
1 Over-current (oc)
2 Over-voltage (ov)