User Manual Owner's manual

214 Rockwell Automation Publication 280E-UM001B-EN-P - July 2012
Chapter 9 Diagnostics
Table 37 - Fault LED Indicators for 284E
Bit/Blink
Pattern
Auto-
Resettable 284E Trip Status Description Action
1 No Short Circuit The circuit breaker (140M) has tripped. Determine cause of trip. Try to reset the circuit breaker
using the disconnect handle. If the conditions continue,
check power wiring or replace based module. This cannot
be disabled.
2Drive
Controlled
Overload
(Drive Codes 7 and 64)
An excessive motor load exists 1. Reduce load so drive output current does not exceed
the current set by Parameter 133 (Motor OL Current).
2. Verify Parameter 184 (Boost Select) setting.
3. Drive rating of 150% for 1 minute.
4. Reduce load or extend Accel Time two hundred
percent or when 3 seconds has been exceeded.
3Drive
Controlled
Phase Short
(Drive Codes 38…43)
1. Phase U, V, or W to Gnd. A phase to ground fault has
been detected between the drive and motor in this
phase.
2. Phase UV, UW, or VW Short. Excessive current has been
detected between these two output terminals.
Check the wiring between the drive and motor. Check
motor for grounded phase. Check the motor and drive
output terminal wiring for a shorted condition. Replace
drive if fault cannot be cleared.
4Drive
Controlled
Ground Fault
(Drive Code 13)
A current path to earth ground has been detected at one
or more of the drive output terminals.
Check the motor and external wiring to the drive output
terminals for a grounded condition.
5Drive
Controlled
Stall
(Drive Code 6)
Drive is unable to accelerate motor. Increase Parameters 139…167 (Accel Time x) or reduce
load so drive output current does not exceed the current
set by Parameter 189 (Current Limit 1).
6
Parameter 23
(PrFlt Reset
Mode)
Control Pwr Loss (Switched
Power)
The ArmorStart has detected a loss of the control power
voltage.
Check control voltage, wiring, and proper polarity (A1/A2
terminal). Also, check and replace the control voltage
fuse, if necessary. This fault can be disabled and is
disabled by default.
7 Parameter 23
(PrFlt Reset
Mode)
Input Fault This error indicates a shorted sensor, shorted input
device, wiring input mistakes, or a blown output fuse.
If this fault occurs, the offending problem should be
isolated or removed prior to restarting the system. This
fault can be disabled and is disabled by default.
8 Parameter 23
(PrFlt Reset
Mode)
Over Temperature This fault is generated when the operating temperature
has been exceeded. This fault cannot be disabled.
Check for blocked or dirty heat sink fins. Verify that
ambient temperature has not exceeded 40 °C (104 °F).
1. Clear the fault or cycle power to the drive.
9Drive
Controlled
Over Current
(Drive Codes 12 and 63)
The drive output current has exceeded the hardware
current limit.
Check programming. Check for excess load, improper
Parameter 184 (Boost Select) setting. DC brake volts set
too high or other causes of excess current. Parameter 198
(SW Current Trip) has been exceeded, check load
requirements and Parameter 198 setting.
10
Parameter 23
(PrFlt Reset
Mode)
Control Power (24V DC) Lost
(Unswitched Power)
The 24V DC power supply is below tolerance threshold. Check the state of the network power supply (A3/A1
terminal) and look for media problems. This fault can be
disabled and is disabled by default.
11 No Internal Comm
(Refer to Parameter 61 for
details on this fault. F81 is a
VFD fault. This could also
happen if control power is
lost.)
Communication with either the control module (VFD) or
Control module has stopped.
Refer to section Fault 11 Detail. If the problem persists
replace the unit.
12 Drive
Controlled
DC Bus Fault
(Drive Codes Reference 3, 4
and 5)
Power Loss - DC bus voltage remained below 85% of
nominal. UnderVoltage - DC but voltage fell below the
minimum value. OverVoltage - DC bus voltage exceeded
maximum value.
Monitor the incoming AC line for low voltage or line
power interruption. Check the input fuses. Monitor the
AC line for high line voltage or transient conditions. Bus
overvoltage can also be caused by motor regeneration.
Extend the decel time or install dynamic brake option.
13 No EEprom
(PF Drive Code Reference
100)
The checksum read from the board does not match the
checksum calculated.
Set Parameter 141 (Reset to Defaults) to Option 1 “Reset
Defaults”.