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APPENDIX G — OPTIONAL MOTORMASTER
®
V CONTROL
Table AS — Fault Codes
LEGEND
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.
CODE
DESCRIPTION
RESET
METHOD
PROBABLE CAUSE
CORRECTIVE ACTION
AF
High Temperature Fault
Automatic
Ambient temperature is too high; Cool-
ing fan has failed (if equipped).
Check cooling fan operation.
CF
Control Fault
Manual
A blank EPM, or an EPM with cor-
rupted data has been installed.
Perform a factory reset using Parameter 48
– PROGRAM SELECTION. See Drive Pro-
gramming section.
cF
Incompatibility Fault
Manual
An EPM with an incompatible parame-
ter version has been installed.
Either remove the EPM or perform a factory
reset (Parameter 48) to change the parame-
ter version of the EPM to match the parame-
ter version of the drive.
F1
EPM Fault
Manual
The EPM is missing or damaged.
Install EPM or replace with new EPM.
F2—F9
Fo
Internal Faults
Manual
The control board has sensed a
problem
Consult factory.
GF
Data Fault
Manual
User data and Carrier defaults in the
EPM are corrupted.
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.
HF
High DC Bus Voltage Fault
Automatic
Line voltage is too high; Deceleration
rate is too fast; Overhauling load.
Check line voltage — set P01
appropriately.
JF
Serial Fault
Automatic
The watchdog timer has timed out,
indicating that the serial link has been
lost.
Check serial connection (computer).
Check settings for P15.
Check settings in communication software
to match P15.
LF
Low DC Bus Voltage Fault
Automatic
Line voltage is too low.
Check line voltage — set P01
appropriately.
OF
Output Transistor Fault
Automatic
Phase to phase or phase to ground
short circuit on the output; Failed out-
put transistor; Boost settings are too
high; Acceleration rate is too fast.
Reduce boost or increase acceleration val-
ues. If unsuccessful, replace drive.
PF
Current Overload Fault
Automatic
VFD is undersized for the application;
Mechanical problem with the driven
equipment.
Check line voltage – set P01 appropriately.
Check for dirty coils.
Check for motor bearing failure.
SF
Single-phase Fault
Automatic
Single-phase input power has been
applied to a three-phase drive.
Check input power phasing.
Drive displays
‘---’ even
though drive
should be
running
Start Contact is Not Closed
Automatic
Start contact is missing or not
functioning.
Check fan relay.
VFD flashes
“---”
and LCS
Start Contact is Not Closed
Automatic
Start contact not closed.
Check FR for closed contact.
VFD flashes 57
(or 47)
and LCS
Speed Signal Lost
Automatic
Speed signal lost. Drive will operate at
57 (or 47) Hz until reset or loss of start
command. Resetting requires cycling
start command (or power).
Transducer signal lost. Check VDC signal
between TB5 and TB2. Should be in range
of 0.5V to 4.5V. 5VDC output should be
present between TB6 and TB2.
EPM —
Electronic Programming Module
FR
—
Fan Relay
LCS —
Loss of Control Signal
TB
—
Terminal Block
VFD —
Variable Frequency Drive
Summary of Contents for Weathermaster 48P2030-100
Page 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Page 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Page 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Page 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Page 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Page 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Page 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Page 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Page 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Page 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...