EAAM057608EN
GC250 Technical Manual 17
Maximum mains/generator
voltages allowed:
MAX 300Vac in CAT.III for measures L-N
MAX 520Vac in CAT.III for measures L-L
Minimum mains/generator
voltage measurable:
Matching with the minimum voltages required for the frequency
measurement, see below.
Maximum currents allowed:
Continuous 5Aac. Transitory over current measure up to sine wave
20A (< 3s) with progressive loss of precision in measurement.
Maximum transitory over current sine wave 50Aac (<1s).
Frequency measurements:
Rated frequency 50 or 60Hz, measurement from 3 to 99.9Hz
Measurements obtained by the voltage of the L1 phases of
mains/generator.
Minimum sensibility for the minimum mains frequency:
24Vrms L-N @ 60 Hz
Minimum sensibility for the minimum generator frequency:
29Vrms L-N @ 50Hz
32Vrms L-N @ 60Hz
Digital inputs
4 digital inputs with GND supply minus activation. The inversion of the
activation logic from parameter is possible. When open, the voltage on
the input terminals is 4.1V for the input T.16 and 4.6V for the other
three inputs.
Threshold of activation/deactivation 1.55VDC; typical current at close
contact 4mA for T.16 and 4.6mA for the other three inputs.
Maximum voltage applicable: 60VDC
Minimum voltage applicable: -24VDC
The input T.16 can be configured as analogue input for the
measurement of the voltages (see below)
Statics Outputs
Four independent configurable outputs to battery plus, max 500
continuous mA each; internal limitation to approximately 4A max. on
transients <150us and then thermal protection intervention. Protection
against overload, short-circuit and voltage surge and integrated
reverse polarity.
Two independent outputs (T.05 and T.06) used in default for starter
motor and fuel valve, max 10A resistive for 10s, 5A resistive
continuous at 32VDC. Integrated thermal protection, over current, short
circuit and inverse polarity.
Use external opening overvoltage damping diodes, especially for
inductive loads.
For every static output, the outgoing current is supplied through the
positive supply terminal of the T.02 (+BATT) device.
The function of every single output is totally configurable from
parameter.
Excitation output for recharge
alteD
Maximum current switched automatically, depending on the supply
voltage Vbatt:
200mA @ 13.5 VDC
100mA @ 27 VDC
If it is not used for the excitation of the battery charger alternator, it is
possible to configure the T.09 terminal as analogue input to acquire
voltage measurements from 0 to 32V or as additional digital input with
+Vbatt activation.
The voltage measurement acquired is displayed in the page S.07 of
the display.
