Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 61
Warning Messages Chapter 2
X X CoolantLevel Low
(C-FRAME ONLY)
38 This warning is for liquid cool drives. The measured coolant
level in the reservoir is low.
• Check the coolant level and inspect for any leaks. If there are no
visible leaks, add an approved coolant to the maximum level.
• You will lose coolant over time through evaporation, but you should
still verify that there are no slow leaks in the system.
• Add de-ionized water to the system since this is what normally
evaporates, and check the coolant mixture with a glycol tester.
• If the coolant level is OK but the warning is still there, then check
the low level switch’s function.
X X Coolant Temp Low
(C-FRAME ONLY)
35 This warning is for liquid cool drives. The measured coolant
temperature is below 10 °C (50 °F). The warning will not clear
until the temperature rises above 15°C (58°F).
• Verify that the thermostatic bypass valve (V10) was not left open.
• Warm up the control room ambient to get the drive to an
operational level.
• If the warning persists, check the function of the thermoswitch.
X X CoolantTempHigh
(C-FRAME ONLY)
36 The measured coolant temperature has exceeded the 48°C
(120°F) trip setting (P478). The warning cannot be cleared until
the temperature has dropped below 44°C (110°F).
• Verify the heat exchanger fans are operating.
• Verify that the thermostatic valve is fully opened.
• Check that all valves are in the normal operating position.
• Verify room ambient temperature is adequate for the drive
operation.
X CRC Warning 501 The number of cyclic redundancy check (CRC) faults has
exceeded or is equal to the maximum allowable CRC warning
level.
• Check DCSL the communication wiring and shielding.
X Ctrl5V Redundant 118 5V redundant output of the DC/DC converter has failed. • Verify the output from the alarm signal is wired correctly.
• Check the 5V rail connections.
• Replace the power supply when possible.
X DataRecorder Clr 176 Black box NVRAM has been cleared. • Check if DPM battery is depleted. If DPM battery level is good, check
that the battery is properly seated (connection is good).
• If this fault recurs, replace the DPM.
X DB AirflowSensor 363 Dynamic brake (DB) airflow sensor not functioning. A warning
is issued if this happens while running and a fault is issued
when the drive is stopped.
• Check DPM and airflow sensor in the DB cabinet.
X DB Ambient Loss 361 DB temperature sensor not functioning. A warning is issued if
this happens while running and a fault is issued when the drive
is stopped.
• Check the temperature feedback board (TFB) and DB exhaust
temperature sensor in the DB cabinet.
X DB Disabled 360 DB unit is disabled. SpecialFeatures3 (P920), bit 0 is used to
enable / disable the DB function. If the DB resistance value is
set to 0, the DB function will automatically be disabled.
• If the DB cabinet is present, verify DB resistance parameter settings.
• If the DB function required, ensure that it is enabled.
X DB Fan Ctctr 357 DB fan contactor is engaged but not commanded from drive. • Check the DB fan input status and its control circuit.
X DB Fan ON 358 DB fan contactor is not engaged (to run the fan) although
commanded from drive.
• Check the DP fan control circuit and contactor.
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)
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