EnerSys NexSys+ NIP3 - ADDITIONAL FAULT CODE RESOLUTIONS; Fault Code Details (TH, BAT TEMP, etc.)

NexSys
®
+
Owner’s Manual
AM-NXSPLUS-OM
Rev AC October 2018
29
Check the battery condition of use.
Check the configuration in the menu
(charge cables parameters).
Fault
Critical
Cause
Solution
TH
or
TH-Amb
Yes
Charger overheating
Check that fans are working.
Verify that ambient temperature is not
too high – above 113° F (45° C).
Inspect to see if charger ventilation is
obstructed or impaired.
BAT TEMP
Yes
Battery temperature reached
maximum level.
Allow battery to cool down.
MOD TH
No
Alternating with charge
parameters – one or more
module in thermal fault – the
charge process continues –
the fault module(s) is(are)
displayed + red led flashing.
Check that the fan(s) is (are) working
correctly and/or that the ambient
temperature is not too high or whether
there is poor natural ventilation to the
charger.
If all modules are in thermal fault a TH
fault will follow.
DFMOD
No
Alternating with charge
parameters – one or more
module in DF1 fault – the
charge process continues –
the fault module(s) is (are)
displayed + red led flashing.
Check power modules.
If all modules in DF1 fault a DF1 error
will follow.
DEF ID
Yes
Blocking fault – one or more
modules are not compatible
with the charger
configuration (for example
24 V charger with one 48 V
module). This can happen if
the user replaces one
module with another one
with a different voltage
setting.
Use correct module(s).
No
Battery balance fault
Check battery cell voltages.