ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft 9
ECON-4 Reference guide.pdf
Active
PNP
Link 1 and 2
Passive
Link 2 and 3
If the jumper is in position 2-3, terminals GND and SIG are separated from all other terminals. This
enables to share one pick-up by two modules, for instance by a speed governor and by an ignition,
without danger of creating a ground loop.
Analog inputs
There are 2 analog inputs available on the ECON-4. Each of them can be configured either as 0-20mA
or 0-10V range by jumper setting – see in table below. The analog input function is fixed.
Table 2
0-20 mA
SPEED REQUEST S3.1 P22 – 20 mA
ACTIVE POWER S3.2 P23 – 20 mA
0-10 V
SPEED REQUEST S3.1 P22 – 10 V
ACTIVE POWER S3.2 P23 – 10 V
S3.1 SPEED REQUEST
The input defines speed reference. It can be set in the range from Nominal RPM - PerChSpdNom% to
Nominal RPM + PerChSpdNom%. Setpoint: EngineRPM:PerChSpdNom [1-50%] defines the
maximum Percentage change of Speed from Nominal in case BIN or ANA mode of control is used.
Example:
Analog input SPEED REQUEST is set to range 0 – 10 V, Nominal RPM is 1500 RPM, Input voltage is
6 V. Speed reference is then ReqSpeed = 1500 + (PerChSpdNom/100)*1500*(6-5)/5 = 1524 RPM.
PerChSpdNom = 8 in the previous calculation.
Hint:
Input SPEED REQUEST is active only if the setpoint Speed request has value ANA.
S3.2 ACTIVE POWER
Input from the external transmitter of Active power. Value of the Active power is used to improve load
step response of the governor. Input ACTIVE POWER is active only, if the setpoint Speed request has
not value DATA. The input sensitivity can be adjusted by setpoint Load anticip.
Hint:
Input ACTIVE POWER is active only if the setpoint Speed request has value BIN or ANA and setpoint
Load anticip > 0.