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Connector position
To protect the controller from overvoltage caused by an inductive load,
freewheeling diode to pin KEY
Please ensure that inductive loads are connected so that the paths through
the freewheeling diodes are always present; otherwise use external
freewheeling diodes.
Use of brushless fan or other loads with built-in capacitors may lead to
high inrush currents at turn-on, which may eventually bring to open-drain
overcurrent trips. Inrush current must be below the peak current.
4.4.6 EB outputs
Electromechanical brakes are operated through an open-drain PWM-voltage-
controlled outputs on pin NEB_R
utilize the built-in freewheeling diodes, the coil must be supplied by pin PEB
(A17) (see chapter 3.1.1), which in turn is supplied by a high-side driver (see
paragraph 4.4.8).
In case the vehicle design does not allow the usage of the built-in freewheeling
diode, i.e. if the return path integrity cannot be guaranteed in all situations,
external freewheeling diodes must be applied over the inductive loads supplied
by the open drain outputs.
Output features
PWM shall only be used for inductive loads such as relays, contactors, motor
brakes or hydraulic valves.
Protection
Protected against inductive discharge with internal freewheeling diode to pin PEB
A27
(A17) and ESD protected by suppressor device.
Not protected against reverse polarity of the battery. A way to avoid a failure
caused by the polarity inversion is to activate the contactor only when the voltage
over the DC-bus capacitors has reached the accepted pre charge level.
Page 44/169
Standard
A16
Up to 2.5 Arms continuous current (holding).
Up to 3 A peak (pulling) current for a maximum of 200 ms.
Individual hardware for detection of: shorted driver, open driver, open coil.
1 kHz PWM frequencies.
Configurable output voltage, by means of separate parameters for pulling
and holding stages.
A3
(A1) is built-in.
A28
(A18) and NEB_L
AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
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A26
A29
(A19). In order to
A27
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Troubleshooting
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Do you have a question about the DUALACE2 NEW GENERATION and is the answer not in the manual?
Questions and answers
Como comprobar el funcionamiento del controlador dualac2 sin display
You can check the operation of the Zapi DUALACE2 NEW GENERATION controller without a display using the following methods:
1. Zapi Smart Console – Connect the Zapi Smart Console to the CAN bus to access diagnostics and parameter settings.
2. PC CAN Console – Use the PC CAN Console software to monitor and adjust controller settings.
3. Self-Diagnosis Feature – The controller performs self-diagnosis, and faults can be displayed using Zapi tools.
4. Alarm History Log – Check the log of alarms to review past faults and system behavior.
5. TESTER Function – Use the TESTER function to monitor key operational readouts.
These methods allow you to diagnose and verify the controller’s operation without an external display.
This answer is automatically generated
A brumby electrical truck that has a zapi inv.dace2, records the failure 244 "Warning Slave It depends on the supervisor uc", and the alarm 248 "Mc is Opened, eb is applied". On the other hand, the LED does not turn on, but in the manual I did not find the LED code. I would like more certainty about whether the failure is from the controller and the LED code for this Zapi model.
Failure 244 "Warning Slave" depends on the supervisor microcontroller (µC). No specific effect or troubleshooting steps are provided in the available context.
Alarm 248 "MC is Opened, EB is Applied" indicates that the main contactor (MC) is open, and the electric brake (EB) is applied. This typically occurs during start-up, standby, or other system states.
The LED code for this model is not explicitly provided in the available context.
This answer is automatically generated