Diagnostics/Troubleshooting 5-5
IQ 2000/5000 Installation Manual
34 Excessive FE The following error has exceeded the Following Error Limit for a time greater than
the Following Error Time. Possible causes are loss of encoder feedback, low gain
settings, a commanded velocity or acceleration that exceeds system capabilities,
or entries for Following Error Limit and/or Following Error Time that are beyond
system capabilities.
35 Excessive Speed Commanded velocity of a move exceeded the Overspeed value set under Veloc-
ity / Acceleration in the Parameter menu.
36 Cam Profile Overflow The target follower position in a cam profile could not be calculated.
37 POS Track Overflow The target follower position with tracking mode active could not be calculated
38 Serial Port #2 Busy A PRINT or READ statement was attempted to serial port #2 while the system
was reserving the port for other functions.
39 Drive Not Ready IQ-550 only. The Ready to Run signal from the drive indicates a fault in the drive.
40 Motor Overtemperature The temperature sensor in the motor windings indicated that the motor tempera-
ture has exceeded the rating. Check for mechanical binding, undersized motor,
or duty cycle too high.
41 Power Module Fault
or
Heat Sink
Overtemperature
This fault typically indicates that the amplifier is trying to supply currents above its
rating to the motor. Check for mechanical binding, excessive duty cycle, or faulty
motor wiring.
IQ-2000: The IQ-2000 power module has detected excessive internal tempera-
ture or excessive current to the motor. On earlier power modules, this fault indi-
cates the heat sink temperature has exceeded the rated temperature.
IQ-5000: The heat sink temperature has exceeded the rating.
42 Bus Undervoltage
or
Logic Supply Fault
The DC Bus voltage is too low, or power supplies for the amplifier circuitry were
below the nominal output voltage. This indicates a problem in the PDM internal
power supply.
43 Peak Overcurrent The PDM current sensors detected a short circuit in the motor leads. Check
motor power cables for shorts.
44 Bus Overvoltage The DC bus voltage exceeded safe levels. This error usually indicates that the
power supply shunt is not operating properly. Check the shunt fuse on the Power
Supply Module (IQ-5000 only). See Figure 3.4 on page 3-5.
45
46
Encoder 1 Fault
Encoder 2 Fault
Incorrect encoder signals were detected by the IQ circuitry. The encoder signals
may be out of quadrature or an encoder signal is missing (broken wire).
47 Watchdog Test Fault The Watchdog circuitry test (performed at power up) failed. The PDM should be
replaced.
48 Personality Fault A checksum error was detected in the personality data for the PDM. Reload the
Personality Module from a previously saved file, or replace the Personality Mod-
ule.
49 Watchdog Reset The watchdog timer is pulsed by the microprocessor every millisecond to ensure
that the microprocessor is running properly. If the microprocessor fails to pulse
the watchdog, a Watchdog Reset fault occurs.
50 RAM R/W Fault The static RAM failed a test. The PDM should be replaced.
51 EPROM Checksum One of the EPROMs failed the checksum test at power up. All three EPROMs,
U66, U67, and U87 should be replaced.
52 TEXT Checksum The text EPROM failed the checksum test at power up. The text EPROM, U57,
should be replaced.
53 NVRAM R/W Fault The NVRAM (Personality Module) failed a read/write test and should be
replaced.
54 Parameter Checksum When parameters are entered or changed, a checksum is computed and stored.
When powering up, the PDM recalculates the checksum and compares it with the
stored value. If the two sums differ, the contents of the NVRAM are assumed to
be invalid. The most likely cause of this will be a power failure while entering new
data. When a Parameter Checksum error occurs, use the Parameter menu to
check for invalid values.
57 Blank NVRAM The Personality Module is blank. To reload the contents of the PM, use the File,
Transfer menu command.
60
61
62
63
Limits:
Hard Forward
Hard Reverse
Soft Forward
Soft Reverse
A limit input activated (hard limit). If the error is a soft limit, a software travel limit
has been exceeded. The Jog inputs can be used to move the PDM off the limit (in
the opposite direction).
TABLE 5.3 Error Messages (continued)
No. Error Message Description
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