45
80999D_MHW_GFW 400-600A_07-2020
_ENG
INPUTS
INA1, INA2, INA3 ANALOGUE CONTROL INPUTS
Function
Acquisition of % value for power control
Voltage
Linear: 0....5 Vdc, Ri= 90Kohm
Linear: 0......10 Vdc, Ri= 90Kohm
Current
Linear: 0/4…20mA, Ri =250ohm
Potentiometric
1.......10 Kohm, max 30mA from 5Vdc power GFW
Line Voltage measurement, Current /Voltage (optional) on load
RMS line voltage measurement function
Line voltage read 50-60Hz;
voltage in range :
90...530Vac for model with work voltage range 480Vac
90...660Vac for model with work voltage range 600Vac
90...760Vac for model with work voltage range 690Vac
Accuracy RMS line voltage measurement
1% f.s. with neutral connected, 2% f.s. without neutral
RMS current measurement function
Load current read
Accuracy RMS current measurement
2% f.s. @25°C in start mode ZC e BF; in mode PA 2% f.s. with
conduction angle >90°, 4% f.s. with conduction angle <90°
Function voltage measurement RMS on load
Load voltage read
Accuracy RMS voltage measurement on load
1% f.s. with VLOAD option measurement
(Otherwise, the value is calculated from the values of line voltage
and power delivered; accuracy 2% F.S.)
Inputs measuring current from external TAs
No. 3 inputs (optional)
Input impedance: 16 mohm
Input dynamic: 0 … 5 Arms
Accuracy: 1% f.s.
Thermal drift for measure tension and current in the load,
tension of line
<0,02%/°C
Current and Voltage sampling time
0.25 ms
INDIG1,…,
INDIG4
Digital inputs
Function
Configurable (default: disabled)
Only for INDIG1, 2, 3: PWM input (100Hz/0,03Hz) to check the
% value of power which depends on the cycle; this function lets
you to set a power set point by means of a digital signal (ex.
from PLC or controller with PWM output).
The PWM function for INDIG1 is available within a frequency
range of 100Hz / 0.03Hz, while for INDIG2 and INDIG3 the
frequency range of the function is 1Hz / 0.03 Hz.
Type
5-30Vdc, 7mA isolation 1500V configurable as PNP or NPN
5 • TECHNICAL CHARACTERISTICS
