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8.2.2 Valve output
Parameter
EVP TYPE
(A)
EVP COIL RESIST.
(A)
MIN EVP
(A)
MAX EVP
(A)
EVP OPEN DELAY
(A)
EVP CLOSE DELAY
(A)
DITHER AMPLITUDE
(A)
DITHER FREQUENCY
(A)
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PARAMETER CHANGE
Allowable range
NONE ÷ ANALOG
0 ÷ 255
(steps of 1/255)
0% ÷ 100%
(steps of 1/255)
0% ÷ 100%
(steps of 1/255)
0 s ÷ 12.75 s
(steps of 0.05 s)
0 s ÷ 12.75 s
(steps of 0.05 s)
0% ÷ 13%
20.8 Hz ÷ 83.3 Hz
AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
Description
This parameter defines the behavior of output EVP
NONE = Output
A25
is not enabled.
DIGITAL = Output
A25
manages an on/off valve
ANALOG = Output
A25
current-controlled proportional valve.
This parameter defines the resistance of the coil
connected to EVP output (A25).
It is expressed in Ohm
This parameter determines the minimum current applied to
the EVP when the potentiometer position is at the
minimum. This parameter is not effective if the EVP is
programmed like an on/off valve.
This parameter determines the maximum current applied
to the EVP when the potentiometer position is at the
maximum. This parameter also determines the current
value when the EVP is programmed like an ON/OFF valve.
It determines the current increase rate on EVP. The
parameter sets the time needed to increase the current to
the maximum possible value.
It determines the current decrease rate on EVP. The
parameter sets the time needed to decrease the current
from the maximum possible value to zero.
This parameter defines the dither signal amplitude. The
dither signal is a square wave added to the proportional-
valve set-point. In this way the response to set-point
variations results optimized. This parameter is a
percentage of the valve maximum current. Setting the
parameter to 0% means the dither is not used.
The available values are:
0.0%, 1.0%, 2.5%, 4.0%, 5.5%, 7.0%, 8.5%, 10%,
11.5%, 13.0%
This parameter defines the dither frequency.
The available values are:
20.8, 22.7, 25, 27.7, 31.2, 35.7, 41.6, 50, 62.5, 83.3
manages a PWM-modulated
A25
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Troubleshooting
Need help?
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