EVAPCO eco-Air Series, User Manual

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36
Controller User Manual
For Single Stack units equipped with EC type fans, the following is a list of alarms and warnings pertaining to the motors. The list is
typical of Fan #1 to Fan #20.
Alarm Description
Fan #1 Phase Failure Alarm A phase of the supply voltage is either lost or poor grid quality
Fan #1 Output Stage Overheating
Alarm The temperature of the motor drive has exceeded a safety limit. Ensure the motor
electronics housing is clean of debris.
Fan #1 Internal
Communication Error Alarm
The controllers within the fan have lost communication.
Fan #1 Motor Overheating Alarm
The ambient temperature around the motor is too high.
Fan #1 Hall Sensor Error Alarm An internal error has occurred with the hall sensor. Power cycle the motor to attempt
to clear the alarm.
Fan #1 Motor Blocked Alarm The motor has been blocked and does not have freedom of movement.
Fan #1 Speed Limit Exceeded
Alarm
The motor has exceeded the speed limit.
Fan #1 Rotor Position Sensor
Calibration Error Alarm The motor positioning sensor has lost calibration. The fan manufacturer must
recalibrate the fan.
Fan #1 DC-Link
Undervoltage Alarm
The line voltage of the motor is faulty.
Fan #1 Current Limitation
Engaged Warning The fan controller is limiting the current based on internal calculations of the
maximum permissible current.
Fan #1 Line Impedance High
Warning
The line impedance is too high causing an unstable DC-link voltage.
Fan #1 Power Limitation Engaged
Warning The fan controller is limiting the fan power based on internal calculations of the
maximum permissible power.
Fan #1 Output Stage
Temperature High Warning
The output staging temperature is reaching the alarm trip point.
Fan #1 Motor Temperature High
Warning
The motor temperature is reaching the alarm trip point
Fan #1 Electronics
Temperature High Warning
The temperature monitoring within the motor controller electronics has exceeded
the warning temperature limit.
Fan #1 DC-Link Voltage Low
Warning
The DC-link voltage is reaching the alarm trip point.
Fan #1 Brake Operation Warning The motor has experienced an external force that has caused the fan to run in the
wring direction at high speed for a prolonged period of time.
Fan #1 DC-Link Voltage High
Warning
The internal DC-link voltage is high.
Fan #1 Line Voltage High Warning
The line voltage to the motor is high.
Fan #1 Shedding Active Warning The fan is attempting to shed obstructions that may have accumulated on the fan
blades.