9
ALARM INDICATIONS
–
In the event of an anomaly, the PMVF 60 indicates the situation with a pop-up window.
–
If the user presses buttons on the front, the alarm is hidden temporarily to permit consultation of the screens.
–
The alarm remains while the anomaly is present.
CODE
ALARM / INDICATION
DESCRIPTION / POSSIBLE CAUSES
A02
IS OPENING FAILURE
The IP sends the opening command to the IS, but the auxiliary (feedback) contact is closed, so the IP sends an opening command to the
backup.
Check the operation of the IS and of its auxiliary (feedback) contact.
A03
IS CLOSING FAILURE
–
The IP has ordered the closing of the IS but it does not close (check OUT1 wiring and/or IS coil).
–
The auxiliary IS contact (feedback) is not working.
–
The auxiliary IS contact (feedback) is not connected correctly to terminal INP1.
–
The auxiliary IS contact (feedback) is not fitted since it is not envisaged in the scheme.
Disable alarm A03 by setting P06.03 to OFF.
Note: LOVATO Electric recommends the use of the feedback input.
A04
INCORRECT MODULE HW CONFIGURATION
PMVF 60 has not found the required expansion modules. Check that they are configured correctly at the side as in the figure on page 11.
A05
LSP1 TRIP - PRESS
▲ ▼
TO RESTORE
Power Imbalance Limit protection LSP1 has tripped. Automatic
time-based or manual reset.
A06
LSP2 TRIP - PRESS
▲ ▼
TO RESTORE
Power Imbalance Limit protection LSP2 has tripped. Automatic
time-based or manual reset.
–
All the alarms/warnings except A04 are non-retentive, i.e. they reset when the anomaly is no longer present after the corresponding reset times.
–
In the presence of a non-retentive alarm, the equipment continues to operate in any case.
–
Exit OUT4 can be programmed to indicate the presence of any alarm (global alarm function).
SELF-DIAGNOSIS
–
The PMVF 60 features a series of self-diagnosis checks. If any of these checks is unsuccessful, a window displaying the text System Error Exx is displayed, where xx indicates the reason for malfunction. Should this indication occur, contact our Customer
Service office (Tel. + 39 035 4282422; E-mail: [email protected]), stating the code indicated.
CURRENT, POWER AND ENERGY MEASUREMENTS
–
If CTs are connected to the current inputs and their reading is enabled by setting parameter P01.04 to a value other than OFF, the equipment will measure currents, powers and energies that, depending on where the CTs are positioned may refer to energy
exchange (CTs positioned on the delivery point) or to the energy produced (CTs positioned on the genset line).
–
The active power produced (exported, i.e. transferred to the grid)
will be displayed with conventional minus sign
(e.g.
−
6.5 kW). The quantity of energy produced by the genset will be added to the exported energy meter.
– There is also a page called Trend Graph which displays the trend in energy production in the last 24 hours (see below).
–
The power measurements permit monitoring of the genset production parameters and making them available on the display or to any supervision system that can read them through one of the supported optional communication modules.
POWER IMBALANCE LIMIT (LSP) CONTROL
–
In three-phase+neutral systems, with CTs installed, the PMVF 60 can also be programmed to carry out the Power Imbalance Limit (LSP) function..
–
In this case, when an imbalance is measured between the phase active powers (difference between the highest and lowest powers) of more than 6 kW for a time > 30 mins or an imbalance of more than 10 kW for a time > 1 min, LSP protection trips.
–
This protection can be programmed to open relay OUT3 or to open the IS via output OUT1.
–
See set-up parameters P01.09 to P01.14 (MENU M01 - GENERAL on page 6).
–
LSP protection tripping is highlighted by A05 and A06 appearing on the display (for LSP1=6 kW and LSP2=10 kW imbalance thresholds respectively).
–
It is possible to restore manually by pressing the
▲ ▼
buttons simultaneously, or automatically by waiting for the time set with P01.14.
I48
6
GB
09
16
31
10
02
98
Total produced
energy
Power
Negative = exported = produced
Positive = imported = consumed
Imported/Exported
indication
Scale in hours
with respect to the
current time
Active power
produced
Scale in kW
