Datacom DFC-0115 User manual

The DFC-0115 is an advanced, precision
15 step power factor control and metering
device, which continuously matches the
target cosø value of the load.
Installation and configuration of the DFC-
0115 is very simple thanks to the auto-
learning function.
Each step output supports single-phase,
two-phase, and three-phase connection of
capacitors and reactors.
Electrical equipment should be installed only
by qualified specialist. No responsibility is
assured by the manufacturer or any of its
subsidiaries for any consequences resulting
from the non-compliance to these
instructions.
Check the unit for cracks and damages due
to transportation. Do not install damaged
equipment.
Do not open the unit. There is no
serviceable parts inside.
Fuses of fast type with a maximum rating of
6A must be connected to the power supply
and phase voltage inputs, in close proximity
of the unit.
Disconnect all power before working on
equipment.
When the unit is connected to the network
do not touch terminals.
Short circuit terminals of unused current
transformers.
Any electrical parameter applied to the
device must be in the range specified in the
user manual.
Do not try to clean the device with solvent or
the like. Only clean with a dump cloth.
Do not allow water to come in the unit.
Verify correct terminal connections before
applying power.
Only for front panel mounting.
Before Installation:
Read the user manual carefully,
determine the correct connection
diagram.
Remove all connectors and mounting
brackets from the unit, then pass the
unit through the mounting opening.
Put mounting brackets and tighten. Do
not tighten too much, this can break
the enclosure.
Make electrical connections with plugs
removed from sockets, then place
plugs to their sockets.
Make sure to use adequate fuses.
Do not subject the unit to water spill.
Below conditions may damage the
device:
Incorrect connections.
Incorrect power supply voltage.
Voltage at measuring terminals
beyond specified range.
Current at measuring terminals
beyond specified range.
Overloaded or short circuited relay
output terminals.
Below conditions may cause abnormal
operation:
Power supply voltage below minimum
acceptable level.
Power supply frequency out of
specified limits
Phase order of voltage inputs not
correct. (Without auto-correct function)
Current transformers not matching
related phases. (Without auto-correct
function)
Incorrect current transformer polarity.
(Without auto-correct function)
Inappropriate delay for switch on,
switch off delays of steps.
DFC-0115
REACTIVE POWER CONTROLLER
SAFETY NOTICE
Failure to follow below
instructions will result in
death or serious injury
INSTALLATION
Current transformers must
be used for current
measurements. No direct
connection allowed.

Although the unit is protected against
electromagnetic disturbances, excessive
disturbance can affect the operation,
measurement precision and data
communication quality.
Always remove the plug connectors
when inserting wires with
screwdriver.
Fuses of fast type with a maximum
rating of 6A must be connected to
the power supply and phase voltage
inputs, in close proximity of the unit.
Always refer to National Wiring
Regulations when conducting
installation.
Use cables of adequate current
carrying capacity (at least 0.75 mm2).
Use cables of adequed temperature
range.
Use at least 1.5mm2cables for
current transformer connection
(AWG15).
The current transformer cable length
should not exceed 1.5 meters. If
longer cable is used, cable section
must be increased proportionally.
Current transformers must have a
5A output.
Three buttons on the front panel provide
access to configuration and measurement
screens.
BUTTON
FUNCTION
Remove all alarms in AUTO
mode.
If the same alarm occurs again,
it will not be displayed.
When held pressed for 3
seconds;
Programming mode activated.
All alarms are enabled.
Skip to the next parameter.
(Measurement and parameter
screen)
Increase related parameter.
(Programming screen)
When held pressed for 3
seconds;
Switch on and switch off steps.
Skip to the previous
parameter. (Measurement and
programming screen)
Decrease related parameter.
(Programming screen)
When held pressed for 3
seconds;
AUTO-MANUAL mode switch.
Reactive control is disabled at
MANUAL mode.
ELECTRICAL CONNECTIONS
Do not place the unit close
to high electromagnetic
noise emitting devices like
contactors, high current
busbars, switch mode
power supplies.
Do not overload relay
outputs. Use extra
contactors if required.
BUTTON FUNCTIONS

During auto setup :
- Polarity and unmatched current
transformers connection will be corrected.
- Each step’s reactive power and
connection type will be automatically
measured.
BUTTON
FUNCTION
Hold pressed MENU button for 3
seconds to activate auto setup.
LErn should be seen at top
screen.
Push up arrow buttons 4 times to
navigate ctrF parameter.
This parameter refers to primary
value of current transformer.
Secondary value is configured as
5A and can not be changed.
Click MENU button to see the ctrF
parameter. This is the primary
value of current transformer. 500A
is configured as default.
Adjust primary value of current
transformer by using up and down
arrow buttons. If current
transformer is 150/5A, ctrF should
be adjusted to 150.
Click MENU button to save ctrF
(adjusted value will disappear)
Click arrow down button 4 times to
display the LErn parameter.
Click MENU button once more to
see value of LErn parameter. (Will
be 0 as default)
Adjust value of LErn to 1 by
clicking up arrow button.
1 Auto setup (3+2)
2 Step values learning
3 CT connection correction
Click MENU button to enable auto
setup. Device will check and
correct current transformer
connections. After that, reactive
power of each step will be
measured by the auto learning
function.
After successful auto setup, AUTO
led will turn on, and steps will be
swithced on and off depending on
the reactive power demand of the
load.
2. AUTO SETUP
Three phase voltage
inputs must be
connected for successful
auto setup.
Large size three phase
capacitors or reactors
should be connected to
first steps for successful
auto setup.
Disconnecting the installation side is
preferred during auto setup. However,
the device can manage to complete
auto setup with stable installation load.
Fast varying loads might cause
inaccurate detection of reactive power
as well as faulty current transformer
polarity.
In such cases, auto setup should be
repeated and connected capacitors
and/or inductors should be checked.

The DFC-0115 offers a set of adjustable
parameters in order to provide the user
with maximum flexibility.
Adjusted parameters are saved in a non-
volatile memory, not affected by power
failures.
As long as the program mode password is
not enabled, the unit will not ask for
password for programming mode.
Password can be enabled or modified
with the “PASS” parameter.
BUTTON
FUNCTION
Hold pressed MENU button for 3
seconds to enable programming.
USEr should be seen at top screen.
LErn should be seen if password
protection is not activated.
Click MENU button to see value of
USEr. Value of USEr (password)
can be seen as zero at bottom
screen.
Adjust password by using up and
down arrows. Value will increase or
decrease faster if the button is held
pressed.
When the required password is set,
click MENU button. First parameter
should be seen (LErn), if correct
password is typed.
Hold down MENU button for 3
seconds, and LAMP TEST mode
will be activated. (All LEDs on the
device will turn on). Click MENU
button again to navigate through
measurement screens.
BUTTON
FUNCTION
Choose required parameter by
using up and down arrows while
parameter can be seen at top
screen.
Click MENU button when
parameter to be changed is found.
Value of parameter will be seen at
the bottom screen.
Adjust the value with arrow buttons.
You can hold the button pressed for
faster increase/decrease.
Click MENU button to save the
parameter value. Adjusted value
will be recorded in the memory and
the parameter value will be
removed from bottom screen.
PROGRAMMING
ENABLE AND DISABLE
PROGRAMMING MODE
ADJUSTING PROGRAMMING
PARAMETERS
Programming will be
disabled after 3
minutes if no button
is pressed.

DEFINITION
MIN
STD
MAX
“User”
Enter Password
The user password
should be entered.
User password is
set through
“PASS” parameter.
0
0
9999
“Lern”
Auto Setup
1 Auto setup
(3+2)
2 Step values
learning
3 CT connection
correction
0
0
3
“rCAP”
Reset error
counters and
dynamic step
values
When this
parameter is set to
1, error counters
and dynamic
values of each
step will be reset.
0
0
1
“rCnt”
Reset step
counters
When this
parameter is set to
1, switching
counters and
hours-run counters
of all steps will be
reset.
0
0
1
“FCty”
Return to factory
settings
When this
parameter is set to
1, all parameters
will return to their
factory set values.
0
0
1
DEFINITION
MIN
STD
MAX
“CtrF”
Current
Transformer
Primary value of
current
transformers.
Can be set
between 5/5A and
5000/5A.
5A
500A
5000A
“CoS”
Target Cosø
Target Cosø can
be set between
capacitive 0.800
and inductive
0.800. Capacitive
power factor is
displayed as
c.800, while
inductive Cosø is
shown as 0.800
0.800
cap.
0.999
ind.
0.800
ind.
“StEP”
Number of steps
Number of steps
can be adjusted
from 1 to 15.
1
15
15
“ProG”
Compensation
algorithm
Different
compansation
algorithms can be
chosen.
This parameter is
advised to be set
to 10 for “smart
compensation”
1
10
10
PARAMETER LIST

DEFINITION
MIN
STD
MAX
“t-dU”
Step switching
delay
When the unit
decides to switch
the step
configuration, it
continues
measurements
during this delay
and sets the new
step configuration
calculated at the
end of this delay.
1 sec
1 sec
2000
sec
“t-CL”
Step switching
protection delay
When the unit sets
a new step
configuration, all
step switching will
be disabled during
this timer.
0 sec
1 sec
2000
sec
“dCHr”
Discharge timer
This is the
common discharge
timer for all steps.
Any step swithed-
off, cannot be
switched on again
before expiration
of this timer.
3 sec
14
sec
2000
sec

Supply Voltage: 85 - 300VAC (L1-N)
50 - 60Hz nominal (± %10) (L1-N)
Generator Input: 70 - 300 V AC (P-N)
Measurement Inputs:
Voltage: 10 - 300 V AC (Ph-N)
20 - 520 V AC (Ph-Ph)
Current: 0.05 - 5.50 A AC
Frequency: 30 - 100 Hz
Accuracy:
Voltage: % 0.5 + 1 digit
Current: % 0.5 + 1 digit
Frequency: % 0.5 + 1 digit
Power(kW,kVAr): %1.0 + 2 digit
Cos: %0.5 + 1 digit
Measurement Range:
CT Range: 5/5A to 5000/5A
VT Range: 0.1/1 to 200.0/1
kW Range: 0.1 kW to 6.5MW
Power Consumption: < 10 VA
Loading:
Voltage Inputs: < 0.1VA per phase
Current Inputs: < 0.5VA per phase
Number of Steps: 12-15
Relay Outputs: 5A @ 250V A
Serial Port:
Signal Type: RS-485
Communication: Modbus RTU
Baud Rate: 2400-115200 selectable
Isolation: 500V AC, 1 minute
Operating Temperature: -20°C to +70 °C (-4 to +158 °F)
Maximum Humidity: %95 non-condensing.
Degree of Protection:
IP 54 (Front Panel)
IP 30 (Rear Panell)
Enclosure:
Non-flammable,
ROHS compliant,
Flame retardant,
High temp. ABS/PC
UL94-V0
Installation: Flush mounting with rear brackets.
Dimensions: 164x164x69mm (WxHxD)
Panel Cutout: 140x140 mm
Weight: 450 gr (approx.)
EU Directives:
2006/95/EC (LVD)
2004/108/EC (EMC)
Norms of References:
TS-EN 61010 (safety)
TS-EN 61326 (EMC)
TECHNICAL SPECIFICATIONS

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CONNECTION DIAGRAM