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AE0ZP0EC - AC-0 SSL SENSORED - User Manual
5 OPERATIONAL FEATURES
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Stable speed in every position of the accelerator.
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Regenerative release braking based upon deceleration ramps.
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Regenerative braking when the accelerator pedal is partially released
(deceleration).
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Direction inversion with regenerative braking based upon deceleration ramp.
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Regenerative braking and direction inversion without contactors: only the
main contactor is present.
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The release braking ramp can be modulated by an analog input, so that a
proportional brake feature is obtained.
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Optimum sensitivity at low speed.
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Voltage boost at the start and with overload to obtain more torque (with
current control).
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The inverter drives an electromechanical brake
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High efficiency of motor and battery due to high frequency commutations.
- Self
diagnosis.
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Modification of parameters through the programming console.
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Internal hour-meter with values that can be displayed on the console.
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Memory of the last five alarms with relative hour-meter and temperature
displayed on the console.
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Test function within console for checking main parameters.
- Speed
control.
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Optimum behaviour an a slope due to the speed feedback:
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the motor speed follows the accelerator, starting a regenerative braking if
the speed overtakes the speed set-point.
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the system can perform an electrical stop on a ramp (the machine is
electrically hold on a slope) for a programmable time (see also 10.4 and
STOP ON RAMP option in “Set options” submenu).
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Hydraulic steering function:
1) traction
inverter
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the traction inverter sends a "hydraulic steering function" request to
the pump inverter on the can-bus line (see also “Set options”
submenu).
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moreover, if the pump inverter is not present (for ex: tractor
application), the traction inverter can manage an "hydraulic steering
function" by driving a hydro contactor which drive a hydraulic steering
motor (output CNA#3), see also “Set options” submenu.
2) pump
inverter
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the pump inverter manage an "hydraulic steering function". That is, it
drives the pump motor at the programmed speed for the
programmed time.
5.1 Diagnosis
The microcontroller continually monitors the inverter and carries out a diagnostic
procedure on the main functions. The diagnosis is made in 4 points:
1) Diagnosis on key switch closing that checks: watchdog circuit, current
sensor, capacitor charging, phase's voltages, contactor drives, can-bus
interface, if the switch sequence for operation is correct and if the output of
accelerator unit is correct.
2) Standby diagnosis in standby that checks: phase's voltages, contactor driver,