Eaton HFX Series - Battery Faults

EATON HFX Product Family Installation and Operation Manual E-ELCL-II002-E2 July 2019 53
List of Battery Faults
Batt_Low – This occurs whenever the supply voltage
drops below 6 V for more than 5 seconds.
Batt_High – This occurs whenever the supply voltage
exceeds 32 V for more than 3 seconds.
List of PWM Faults for PWM1_2A to PWM16_2A
PWM#_2A Loss of Control – This fault indicates that
current or reverse current exceeding a default 75 mA
is owing without any commanded output current on
the channel.
PWM#_2A Over Current – High-Side current
measured on output 1(2A) is greater than the
hardware limit or greater than a default Max current
of 2000 mA. The default current values can be
overwritten in the conguration of the unit.
PWM#_2A Short to battery – This fault indicates
when output channel 1(2A) has a short to the battery.
Note: That the controller is comparing commanded current value
to the measured value to evaluate for the fault. The default
current value is 25 mA but can be overwritten in the conguration
of the unit.
PWM#_2A Open circuit or Low-Side drive grounded
– This fault indicates when there is an open circuit
on output channel 1(2A). The controller is comparing
the commanded current value to the measured value
or checking for a ground short on the output. The
default values can be overwritten in the conguration
of the unit.
List of PWM Faults for PWM1_4A to PWM8_4A –
Fault Description
PWM#_4A Loss of Control – This fault indicates that
current or reverse current exceeding a default 75 mA
is owing without any commanded output current on
the channel.
PWM#_4A Over Current – High-Side current
measured on the output (4A) is greater than the
hardware limit or greater than a default Max current
of 4000 mA. The default current values can be
overwritten in the conguration of the unit.
PWM#_4A Short to battery – This fault indicates
when output channel (4A) has a short to the battery.
Note: That the controller is comparing commanded current value
to the measured value to evaluate for the fault. The default
current value is 25 mA but can be overwritten in the conguration
of the unit.
PWM#_4A Open circuit or Low-Side drive grounded
– This fault indicates when there is an open circuit on
the output channel (4A). The controller is comparing
the commanded current value to the measured value
or checking for a ground short on the output. The
default values can be overwritten in the conguration
of the unit.
HFX Product Family