gefran GFX4-IR Configuration And Programming Manual

1780415F_MSW_GFX4-IR_05-2019_ENG
VOLTAGE VALUE ON LOAD
RMS voltage is read in variable Ld.V of each zone. If zone 1 has a 3-phase load, variable Ld.V.t in the rst zone
contains the average RMS value of voltages of the three lines L1, L2 and L3.
Voltage on the load is acquired with sampling on each cycle, 20ms at 50Hz (16.6ms at 60Hz).
Accuracy is better than 1%.
ATTENTION: For load voltages below 90VAC, the
voltage read on the load and possible related alarms
have no value.
752
Ld.U.t
R
Voltage on 3-phase load
751
Ld.U
R
Voltage on load
LINE VOLTAGE VALUE
The line voltage interval for correct operation is 90…530VAC.
There are the following parameters if zone 1 has a single-phase load:
I.tV1 instantaneous voltmeter value of line
I.VF1 ltered voltmeter value
o.tV1 voltmeter input offset correction
Ft.tV voltmeter input digital lter
There are the following parameters if zone 1 has a 3-phase load:
I.tV1, I.tV2 and I.tV3, the instantaneous voltmeter value on line L1, L2 and L3, respectively.
RMS voltage values refer to neutral or to the internally rebuilt value if not available or not connected.
I.VF1, I.VF2 and I.VF3 ltered voltmeter value on line L1, L2 and L3
o.tV1, o.tV2 and o.tV3 voltmeter input offset correction on line L1, L2 and L3
In case of open delta connection, the linked RMS voltages are in registers I.V21 voltage between L2 and L1; I.V32 voltage
between L3 and L2; I.V13 voltage between L1 and L3.
Each phase has a voltage presence check that shuts off the module in case of incorrect values.
3-phase loads have an imbalance diagnostic, with consequent shut-down of the load and signal via LEDs.
A “voltage status” parameter contains information on the status of line voltage, including mains frequency identied 50/60Hz.
3-phase loads have diagnostics for correct phase connection, lack of a voltage, or imbalance of the three line voltages.
LED status refers to the corresponding parameter, with the following special cases:
- LED RN (green) + LED ER (red) both ashing rapidly: autobaud in progress
- LED ER (red) on: error in one of main inputs (Lo, Hi, Err, Sbr)
- LED ER (red) ashing: temperature alarm (OVER_HEAT or TEMPERATURE_SENSOR_BROKEN) or SHORT-CIRCUIT_CURRENT alarm
(only in three-phase conguration)
- LED ER (red) + LED Ox (yellow) both ashing: HB alarm or POWER_FAIL in zone x
- All LEDs ashing rapidly: ROTATION123 alarm (only in three-phase conguration)
- All LEDs ashing rapidly except LED DI1: jumper conguration not provided for
- All LEDs ashing rapidly except LED DI2: 30%_UNBALANCED_LINE_WARNING alarm (only in three-phase conguration)
- All LEDs ashing rapidly except LED O1: SHORT_CIRCUIT_CURRENT alarm (only in three-phase conguration)
- All LEDs ashing rapidly except LED O2: TRIPHASE_MISSING_LINE_ERROR alarm (only in three-phase conguration)

gefran GFX4-IR Specifications

General

Brand	gefran
Model	GFX4-IR
Category	Controller
Language	English