ECON-4 1.4.0 Global Guide
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C. ECON-4 does not measure the current through actuator. The output signal is PWM, with frequency 6000 Hz.
The maximum ECON-4 current is given by resistance of the actuator and power supply of ECON-4. ECON-
4 is rated to maximum 8 Amps. In case the actuator has resistance 32 Ohms and power supply is 24V, then
maximum ECON-4 current is: 24/32 = 0,75A = 750mA. This means 100% of ECON current is 750mA. In
case the maximum allowable actuator current is 250mA, then this is 33.3% of maximum ECON-4 current.
Adjust Act Cur 0% to 0% and Act Cur 100% to 34% (250mA from 750mA). By this the output is scaled from
0 to 250 mA.
D. Parameters: ActTypex (In this case ActType 1): Act MaxCur is maximum allowable current, in case bigger
current is detected (in fact bigger output PWM signal is detected) for longer then: ActMaxCurDel, then the
output is limited to value ActReduced Cur. The Act Max Curr is calculated from the value Act Cur 100%, so
it means, that the current limitation is in this case already done by adjustment of ActCur 100%, and Act Max
Cur shall be adjusted to 100%. Act MaxCurDel and ActReducedCur then can be adjusted to any value.
E. Parameters: ActTypex ()ActType 1 in this case) Act gain, Act int, Act der has no meaning for the LINEAR
NO FDB adjustment.
F. Adjust parameter: Main PID: Actuator Type to the actuator which you use, so in this case ActType 1.
G. Connect the actuator to ECON-4, outputs ACT+ ACT- (take care about polarity)
H. Adjust ECON-4 parameter: Main PID: ECON-4 mode to MANUAL and run WinScope recording with values:
Gas Dose and Act1 Fdbck in range 0.0 – 100.0%.
I. After adjustment is finished, put parameter: Main PID: ECON-4 mode to AUTOMATIC
J. Based on the chosen type of control (BIN, ANA, DATA) connect the required signal
K. Adjust all other parameters like Nominal, Idle speed, Geer teeth, Overspeed, Speed and Load PID,
ActChannel (to the number which ECON-4 output you are using)
L. ECON-4 is ready for start attempt.
Adjustment for BRIDGE actuator type (typically Heinzmann)
A. At first check the position feedback level, in case it is not within limits 0.4 to 4.6 Volts, then the bridge
actuator cannot be controlled with ECON.
B. Connect to ECON-4 via USB connector, using PC program WinScope.
C. Adjust the Position feedback limits in: AnalogSensors: Fdb 0 pos to voltage of feedback in case the actuator
is fully closed, and Fdb 100 pos to value of voltage when actuator is fully opened.
D. Choose one ActType x group, e.g. ActType 1
E. ECON-4 does not measure the current through actuator. The output signal is PWM, with frequency 6000 Hz.
The maximum ECON-4 current is given by resistance of the actuator and power supply of ECON-4. ECON-
4 is rated to maximum 8 Amps. In case the actuator has resistance 2,5 Ohms and power supply is 24V, then
maximum ECON-4 current is: 24/2.5 = 9,6A but ECON max allowable current is 8 Amps!! So the output
must be limited. This means 100% of ECON theoretical current is 9,6A. In case the maximum allowable
actuator current is 5A, then this is 52% of maximum ECON-4 theoretical current. This value will be used for
the maximum current limitation. So adjust ActType1: Act Max Cur = 52%, Act Max Cur Del = 5 sec and Act
ReducedCur = e.g. 20%.
In case bigger current is detected (in fact bigger output PWM signal is detected) for longer then:
ActMaxCurDel, then the output is limited to value ActReduced Cur.
F. Adjust parameter Wiring to BRIDGE, and adjust parameters Act gain to 10%, Act int to 10% and Act der to
10%
