15
TROUBLE
SOLUTION
All banks on with a low inductive load on
the network
The CT is connected upstream the load but not of capacitors.
Connect the CT as shown in the connection diagram
Continuous switching on and off of first
bank (hunting phenomena)
a)
The C/K value is not correct. Check in the table "C/K VALUES" for the right value
b)
The power of the first bank is too high for the selected PF requirements
Reduce the first bank power according to paragraphs "BANKS POWER" and "NUMBER
OF STEPS" - Increase the selected P.F. value.
Displayed PF values not correct
a)
CT installed in the wrong phase: connect to phase L1.
IND and CAP Led’s off
a)
Possible stand-by condition: at least one capacitor bank on.
Check the PF value of the network on the display
b)
Possible MANUAL working condition: choose the AUTOMATIC operation
IND led ON and no insertion of capacitor
banks
a)
Minimum current alarm.
Current lower than 500mA (see chapter 7. ALARMS).
CAP led is ON without capacitor banks
working
a)
Zero current signal: check the C.T. and its connection and ensure the minimum
secondary current level is least 10mAmps.
b)
C.T. connected on the supply cable of the PFC equipment.
Connect according to electrical scheme at page 11.
c) C.T. installed in the wrong phase: connect to phase L1.
Blinking display
a)
Alarm condition of least one value: see chapter 7. ALARMS.
b)
Check supply voltage is correct.
Display off, regulator not working
a)
Check if supply voltage is present.
b)
Check if supply voltage is equal to the rated voltage of the regulator.
Display on, banks inserted signalling, but
capacitors not working
a)
Check if supply voltage is equal to the rated voltage of the regulator.
b)
Check the “0” connection on contactors.
c)
Check if “220V” has been connected on "C" terminal.
d)
Check contactor functioning.
Displayed “CAP” on display
a)
Possible capacitive load condition.
b)
CT installed in the wrong phase: connect to phase L1.
c)
P.F. lowers than 0,15 IND or CAP.
Displayed “EEE” on display
Minimum current alarm or zero current signal
Led of displayed measure is blinking
ALARM MEMORY (see alarm paragraph).
IF PROBLEMS PERSIST AFTER ALL ABOVE MENTIONED SOLUTIONS SWITCH OFF THE REGULATOR
FOR AT LEAST 20 SECS AND THEN SWITCH ON AGAIN.
IF THE PROBLEM IS STILL PRESENT PLEASE CALL OUR TECHNICAL DEPARTMENT.
9. TECHNICAL DATA
Rated supply voltage
Multivoltage 380
÷
415V a.c. ± 10% (230-440 Vac on request)
400V -10% / +5% continuous operation
Rated consumption
10 VA
Rated supply current
By means of C.T. secondary side 5Amps max., 1
st
class - 5VA (Imin.=500mA)
Current circuit consumption
2VA
Rated frequency
50Hz (60Hz on request)
Controlled banks
6 (MPR6) - 8 (MPR8)
Output relays
5 Amps 250 V a.c. resistive loads
Max current on relays common circuit
5Amps at 40°C resistive load
Switching steps delay
25" (5" or 1” on request)
Alarm delay
10"± 1"
P.F. setting
0,90 IND
÷
0,90 CAP
Operating range
Power Factor 0,20
÷
1,00 IND / CAP
Digital display
Three numbers display
Measurement monitoring
Power Factor 0,20
÷
1,00 IND. / CAP.
accuracy ± 1% full scale
Voltage measurement 360
÷
440Va.c.
accuracy ± 2% full scale
Current measurement 0,5
÷
5Amps accuracy ± 2% full scale
Temperature measurement 10
÷
70°C
accuracy ± 10% full scale
Display accuracy
± 2 digits
Connection
By means of plug connector with terminal fixing screws, for the cable have to be
of 2,5 mm
2
section max.
Mechanical dimensions
144x144 mm FRONT (according to DIN43700) - 85mm thickness
Cut out dimension
138x138 mm (tolerance -0mm /+ 1mm).
Plastic case
Insulating self-extinguishing material
Weight
1,2 Kg
Protection degree (CEI-EN 605.29)
IP 54 front panel - IP20 rear panel
Working temperature
-5°C / + 50°C
Storage temperature
-10°C / +50°C
Relative humidity
Max. 90% at 20°C non-condensing
Altitude max.
2000 meters
Indoor service
10. WARRANTY, INSTRUCTIONS and LIABILITY
