Delta VFD-E User Manual

Chapter 5 Troubleshooting|
5-4 Revision Jan. 2009, 06EE, SW--PW V1.12/CTL V2.12
5.5 Over Heat (OH)
AC motor drive overheats
Heat sink overheats
Check if temperature of heat sink
is greater than 90
O
C
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Reduce load
No
Temperature detectio n ma lfunctions.
Please contact DELTA.
If cooling fan functions normally
Change cooling fan
Check if coolin g f an is jammed
Remove obstruction
Check if surrounding temperature
is within specification
Adjust surrounding temperature
to specification
Maybe AC motor drive has malfunction or
misoperation due to noise. Please contact
DELTA.
Is load too large
5.6 Overload
OL1/ OL2
OL
Reduce load or increase the power of AC motor drive
Check for correct settings at
Pr. 06-06 and 06-07
Ye s
Yes
No
No
Modify setting
Is load too large
Maybe AC motor drive has malfunction
or misoperation due to noise.

Delta VFD-E Specifications

General

Protection Features	IP20
Enclosure Rating	IP20
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Control Mode	V/F, Sensorless Vector
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Operating Temperature	-10°C to +50°C
Analog Inputs	2 (0-10V, 4-20mA)
Analog Outputs	1 (0-10V)
Communication Interface	RS-485
Output Voltage	3-phase, equal to input voltage
Power Range	0.4kW to 7.5 kW
Storage Temperature	-20°C to +60°C
Humidity	90% RH (non-condensing)
Cooling Method	Fan cooled
Digital Outputs	1 relay output