Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 69
Warning Messages Chapter 2
Inv HS Over Temp 451 The drive detected high heatsink temperature at the specified
location.
• Verify if the warning (rectifier P112, inverter P316) and trip settings
(rectifier P111, inverter P315) match factory recommended values.
Inv Low Ambient 443 The drive detected low ambient temperature at the specified
location.
• Verify if the warning level setting matches factory
recommendation.
Inv Low Airflow 391 The cooling airflow velocity on the specified power stack is
below the trip/warn level.
• Be sure that there are no obstructions to the path of the incoming
and/or outgoing air flow.
• Check for cooling fan deterioration.
• Verify if the trip (P840) and warn setting (P841) matches factory
recommended values.
Inv OvrVoltage 222 Motor filter capacitor overvoltage. The inverter output voltage
displayed in Inv Output Volt (P761) has exceeded the trip
settings. This is detected by the hardware circuit in the ACB.
A warning is logged first and if the overvoltage persists for the
time delay a fault is logged Verify the parameters and ensure
that the motor is connected to the drive either directly or
through an output contactor. Inspect the VSB for possible
damage.
• This warning occurs when drive is not gating. It may be when motor
is coasting.
• This is drive output V [surface voltage terminology used in ESP
application].
• The protection uses P193 setting but drive calculates the motor
filter cap voltage.
• Make sure there is no open circuit at the drive output and motor is
connected.
Inv Temp Sensor 399 The specified temperature reading is out of normal range. • Ensure that the temperature sensor is correctly plugged in and is
not damaged.
IsoTx/ReacOvrTmp 75 The temperature switch in the drive input isolation transformer
or line reactor has detected an overtemperature and opened
the AC input to the standard XIO opened. There is a thermal
switch in each phase winding, and they are connected in series.
• See the associated fault description.
• The alarm is user configurable by parameters in the Alarm Config
group. Be sure that the cooling fan in the cabinet is working and
that the air flow is not obstructed.
• Also check the 120V wiring and the XIO card.
Junction OvrTemp 404 The device junction temperature calculated is higher than the
specified trip/warn level (trip P574, warn P577). High junction
temperature could be a result of one or combination of the
following: high ambient temperature, high Idc, low cooling
airflow, incorrect setting of rectifier type or heatsink type, trip/
warn level setting too low
• Check the ambient temperature.
• Check for dirty air filters. Clean or replace the filters.
• Check for restriction in the airflow path
• Verify that the parameters P399 and P880 are set correctly.
L Input Low 64 Indicates that the Autotune L Input (P217) measured was less
than 0.02 pu and the Input Impedance (P140) will have to be
tuned manually.
For PWM rectifier drives, verify that the line reactor is properly
installed.
• Refer to the Commissioning chapter in the PowerFlex 7000 Medium
Voltage AC Drives User Manual for autotune procedures, results and
actions.
L Input High 65 Indicates that the Autotune L Input (P217) measured was
greater than 0.50 pu and the Input Impedance (P140) will have
to be tuned manually. For PWM rectifier drives, verify that the
size of line reactor is correct.
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)
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