32
Curtis 1352 eXm Manual, R ev. D
8 — DIAGNOSTICS & TROUBLESHOOTING
Fast
Red
LED
Table 5 TROUBLESHOOTING CHART
CODE FAULT DESCRIPTION EFFECT CAUSE(S) RECOVERY
Corrupt Code Internal code in eXm is shut down. Faulty memory chip. Requires repair or new
memory is corrupt. software detected. software download.
11 Internal Fault Critical circuits or eXm in Stopped ESD or EMI glitch. NMT Reset Bus
software detected. state. received, or cycle power.
12 EEPROM Fault EEPROM did not eXm in Stopped ESD or EMI glitch May need to reload or
properly write, or state & all drivers during a write. store defaults. See note
Checksum did not disabled. following table.
match.
21 Overvoltage Battery over limit. All drivers disabled. Battery overcharged Battery returns to
Limit = (Nominal or regen. normal range for >1 sec.
Battery * 1.25) + 5V.
22 Undervoltage Battery under limit. All drivers disabled. Battery discharged or Battery returns to
Limit = (Nominal drooping. normal range for >1 sec.
Battery * 0.70) - 5V.
23 Overtemp Heatsink over All drivers disabled. Ambient temperature Temperature returns to
allowed temperature. too hot, or poor heat normal range (<95°C).
sinking.
24 Undertemp Heatsink below All drivers disabled. Ambient temperature Temperature returns to
allowed temperature. too cold. normal range (>-50°C).
31 Driver 1 Fault Driver is in over- Driver disabled. Driver pin is shorted Send a 0% PDO
32 Driver 2 Fault
current (>3.5 amps). to B+, or load is command to the faulted
33 Driver 3 Fault
shorted. driver.
34 Driver 4 Fault
35 Driver 5 Fault
36 Driver 6 Fault
41 Driver 1 Fault Driver output pin Driver not functional. Driver output pin is Driver pin is reconnected.
42 Driver 2 Fault
is low when driver disconnected, or the
43 Driver 3 Fault
is Off. This implies load is open.
44 Driver 4 Fault
the pin has been
45 Driver 5 Fault
left open.
46 Driver 6 Fault
51 PDO Timeout PDO from master All drivers disabled. Master has died, or New PDOs received
not received within CAN bus cable loose. within proper timing.
the time-out period.
52 SDO Fault SDO attempted to SDO aborted Master has tried to Automatically cleared.
be set out of range, message sent. access a non-valid
or is Read Only, or SDO.
is not present.
53 CAN Bus Fault Too many CAN bus eXm in Stopped Noise on the CAN NMT received, or bus
errors detected. state. bus, loose connection, reception & transmission
or poor termination. restored.
Battery under limit.
The limit is based
upon the Nominal
Battery setting.
1. If nominal
> 26.6 volts,
Undervoltage is
fixed at 11.4 V.
2. If nominal
≤ 26.6 volts,
Undervoltage is
fixed at 8.0 V.