Safety Precaution - MULTISPAN APFC-1414 Manual

1) TARGET PF :
Ÿ
This set the targeted power factor required when the system is under automatic mode. The power factor regulator will
switch the capacitors in or out in order to achieve this set value. (Range : +1.00 to -0.99)
2) SCAN TIME :
Ÿ
This parameter set the speed of the switching. A larger sensitivity Time will result in slower switching speed and
conversely, a smaller sensitivity time will result in a faster switching speed.
Ÿ
This sensitivity applies to both switching on and switching off of the capacitor. If switching program is automatic
switching . Then sensitivity time is based on current power factor and target power factor.
1) HYSTERESIS :
Ÿ
It means create band for working of P.F Relay (Range :0.01 to 0.03)
Example for hysteresis:
Hysteresis
If set hysteresis is 0.01 & Set CosØ is 1.00.
Hysteresis band around be 1.00-0.01 = 0.99(Lag) to 1.00+0.01 = 0.99(CAP).
Band is create for relay switching.
Ÿ
If Load is fluctuating (Load is not constant ) & current P.F is between this band then APFC will hold last relay status.
2) MINIMUM OPERATING CURRENT :
Example :
Ÿ
Minimum Current is set to 100mA ,then in case of secondary CT current is less then 100mA then APFC Relay Will stop
there working. (Range : 50mA to 500mA)
3) MINIMUM CAPACITOR BANK PERCENTAGE :
Example :
Ÿ
This Parameter is Applicable only for KVAR mode.
Capacitor bank ON percentage
Ÿ
Bank size of capacitor is 5 KVAR. if we set 50% of minimum capacitor bank ON Percentage ,then in case of under 2.5
KVAR, capacitor bank will not working. (Range : 1 to 100% )
Capacitor bank OFF percentage
Ÿ
If capacitor bank is ON Condition & Minimum Bank size of capacitor is 5 KVAR. if we set 50% of minimum capacitor
bank OFF Percentage ,then in case of requirement of Kvar is under 2.5 Kvar ,then controller will OFF the capacitor
bank. (Range : 1 to 100% )
MECHANICAL INSTALLATION GUIDELINE
1. Prepare the panel cutout with proper dimensions as
shown above.
2. Fit the unit into the panel with the help of clamp given.
3. The equipment in its installed state must not come in
close proximity to any heating source, caustic vapors,
oil steam, or other unwanted process byproducts.
4. Use the specified size of crimp terminal (M3.5 screws) to
wire the terminal block. Tightening the screws on the
terminal block using the tightening torque of the range of
1.2 N.m.
5. Do not connect anything to unused terminals.

SAFETY PRECAUTION

!
Please read the "Safety Warnings" in the instruction manual
s u p p l i e d w i t h t h e i n s t r u m e n t t h o r o u g h l y a n d
completely for correct use. Failure to follow the safety rules
can cause fire, trouble, electrical shock, etc. Therefore, make
sure to operate the instrument on a correct power supply
and voltage rating marked on each
If all the equipment is not handled in a manner specified
by the manufacturer, it might impair the protection provided
by the equipment.
Read complete instructions prior to installation
and operation of the unit.
WARNING : Risk of electric shock.
BASIC PARAMETER
OTHER SETTING
instrument.
WARNING GUIDELINES
WARNING : Risk of electric shock.
1) To prevent the risk of electric shock, power supply to the
equipment must be kept OFF while doing the wiring
arrangement. Do not touch the terminals while power is
being supplied.
2) To reduce electro magnetic interference, use wire with
adequate rating and twists of the same of equal size shall
be made with shortest connection.
3. Cable used for connection to power source, must have a
cross section of 1mm or greater. These wires should have
insulations capacity made of at least 1.5kV.
4) A better anti-noise effect can be expected by using
standard power supply cable for the instrument.
INSTALLATION GUIDELINES
1) Do not allow pieces of metal, wire clippings, or fine metallic
fillings from installation to enter the product or else it may
lead to a safety hazard that may in turn endanger life or
cause electrical shock to the operator.
2) Circuit breaker or mains switch must be installed between
power source and supply terminal to facilitate power 'ON'
or 'OFF' function. However this mains switch or circuit
breaker must be installed at convenient place normally
accessible to the operator.
3) Use and store the instrument within the specified ambient
temperature and humidity ranges as mentioned in this
manual.
(Range : 5 to 999 sec)