40 Troubleshooting
LED
Drive Status
Color and
Flash
Sequence
Flash Rate
Color and
Sequence After
Recovered Fault
Normal Operation (Run)
Green
1 sec. On / Off
—
Overload (120% – 160% Full
Load
Red
On continuously
Green
I
2
t (Drive Timed Out)
Red
0.25 sec. On / Off
—
Short Circuit
Red
1 sec On / Off
—
Under-Voltage
Red / Yellow
0.25 sec. On / Off
Red / Yellow / Green
Over-Voltage
Red / Yellow
1 sec. On / Off
Red / Yellow / Green
Stop
Yellow
On continuously
—
Phase Loss Detection
1,2
Yellow
0.04 sec. On / 0.06 sec. Off
—
Communication Error
2
Green / Red
1 sec. On / Off
Green
PWR
(Power)
Bus and Logic Power Supply
Green
On continuously
—
Notes:
1. Phase Loss Detection: Models KBVF-23P, 24P, 29, 45, 48.
2. Requires AC line restart.
3. With DVF Modbus Communication Module Installed.
4. All LED flash rates after recovered faults are 1 sec. On / Off.
5. Drive will require manual restart to return the Status LED color to its normal flashing green state.
Problem
Solution
No air flow
(Continued)
6. If one motor is running and one is not, replace the
faulty motor.
7. If all motors are not running, check for approx. 220
VAC output voltage. If there is no voltage and the
green lights are on and slowly flashing, replace the
AC inverter. (Remember this is three-phase: test
from lead to lead. Do not test to ground.) U to V, U
to W, V to W. If you lose voltage on one of these
legs, replace the AC inverter.
8. One bad motor could cause the steady-flashing
green light to change. Disconnect all motors and
run one motor at a time to find the bad motor.
9. Motors should be running counter-clockwise.
Check that all motors are running the correct
direction. If not, change the two output terminals to
obtain correct phase.
Summary of Contents for ET2008
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