Carrier Weathermaster 48P030-100 Controls, Start-Up, Operation, Service, And Troubleshooting page 258

APPENDIX H — OPTIONAL MOTORMASTER
CODE DESCRIPTION
AF High Temperature Fault
CF Control Fault
cF Incompatibility Fault
F1 EPM Fault
F2 - F9
Internal Faults
Fo
GF Data Fault
HF High DC Bus Voltage Fault
JF Serial Fault
LF Low DC Bus Voltage Fault
OF Output Transistor Fault
PF Current Overload Fault
SF Single-phase Fault
Drive displays
'---' even though
Start Contact is Not Closed
drive should be
running
VFD flashes
"---" Start Contact is Not Closed
and LCS
VFD flashes 57
(or 47) Speed Signal Lost
and LCS
LEGEND
EPM — Electronic Programming Module
FR — Fan Relay
LCS — Loss of Control Signal
TB — Terminal Block
VFD — Variable Frequency Drive
NOTE: The drive is programmed to automatically restart after a fault and will
attempt to restart three times after a fault (the drive will not restart after CF, cF, GF,
F1, F2-F9, or Fo faults). If all three restart attempts are unsuccessful, the drive will
trip into FAULT LOCKOUT (LC), which requires a manual reset.
Table AY — Fault Codes
RESET
PROBABLE CAUSE
METHOD
Ambient temperature is too high; Cooling fan
Automatic
has failed (if equipped).
A blank EPM, or an EPM with corrupted data
Manual
has been installed.
An EPM with an incompatible parameter
Manual
version has been installed.
Manual The EPM is missing or damaged.
The control board has sensed a
Manual
problem
User data and Carrier defaults in the EPM
Manual
are corrupted.
Line voltage is too high; Deceleration rate is
Automatic
too fast; Overhauling load.
The watchdog timer has timed out, indicating
Automatic
that the serial link has been lost.
Automatic Line voltage is too low.
Phase to phase or phase to ground short
circuit on the output; Failed output transistor;
Automatic
Boost settings are too high; Acceleration rate
is too fast.
VFD is undersized for the application;
Automatic Mechanical problem with the driven
equipment.
Single-phase input power has been applied
Automatic
to a three-phase drive.
Start contact is missing or not
Automatic
functioning.
Automatic Start contact not closed.
Speed signal lost. Drive will operate at 57 (or
47) Hz until reset or loss of start command.
Automatic
Resetting requires cycling start command (or
power).
258
® V CONTROL (CONT)
CORRECTIVE ACTION
Check cooling fan operation.
Perform a factory reset using Parameter 48 –
PROGRAM SELECTION. See Drive Programming
section.
Either remove the EPM or perform a factory reset
(Parameter 48) to change the parameter version
of the EPM to match the parameter version of the
drive.
Install EPM or replace with new EPM.
Consult factory.
Restore factory defaults by toggling P48 to
another mode. Then set P48 to desired mode to
restore all defaults for that mode. See Drive
Programming section. If that does not work,
replace EPM.
Check line voltage — set P01
appropriately.
Check serial connection (computer).
Check settings for P15.
Check settings in communication software to
match P15.
Check line voltage — set P01
appropriately.
Reduce boost or increase acceleration values. If
unsuccessful, replace drive.
Check line voltage – set P01 appropriately.
Check for dirty coils.
Check for motor bearing failure.
Check input power phasing.
Check fan relay.
Check FR for closed contact.
Transducer signal lost. Check vdc signal between
TB5 and TB2. Should be in range of 0.5V to 4.5V.
5 vdc output should be present between TB6 and
TB2.