English
Section 5
IntelliFlo Pump Warnings and Alarm Conditions
The IntelliFlo VSD alarms and warnings are indicated by flashing LEDs on the control panel. For example, if a “Drive Temperature”
warning occurs, the LED will blink two times, then Off, then blink two times. This sequence is repeated until the condition is cleared.
• Warning condition:
If a warning condition occurs the pump will be continue to run but at a reduced speed. The Green LED
executes a sequence of blinks to indicate which alarm or warning has occurred.
• Alarm condition:
If an alarm condition occurs the pump will drive stop running. The red LED flashes continuously to indicate the
presence of an alarm. The alarm LEDs will reset when the condition clears.
Alarm (RED) and Warning (GREEN) LED sequence
Number of time
the LED will blink
Alarm
Description
Action
2
Drive
Temperature
Warning
Excessive drive tem-
perature
1. Ensure the motor fan has adequate area for
ventilation.
2. Stop motor and allow to cool.
3. Run motor at a higher speed to improve cool-
ing air flow.
5
Unknown alarm
Electronic failure
1. Cycle power to reset pump.
2. Replace drive.
6
Drive Temperature
Alarm
Excessive drive tem-
perature
1. Ensure the motor fan has adequate area for
ventilation.
2. Run motor at a higher speed to improve cool-
ing air flow.
7
Power Out Alarm
Supply
voltage low
Ensure proper supply voltage.
8
Over current Alarm
Excessive drive cur-
rent
1. Examine fluid/mechanical system for source of
overload.
2. De-energize motor and
determine if motor spins freely.
3. Replace drive.
9
Over voltage
Alarm
Excessive voltage on
drive buss
1. Rapid switching between speeds can cause
excessive voltages on the drive’s DC buss.
2. Ensure proper supply voltage.
7