FRC FDA700 for Delta Winding User manual

FDA700 Rev160509
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FROG-D 3P
FREQUENCY READOUT OF GENERATOR
THREE PHASE
GENERATOR DISPLAY
MODELS: FDA700 for Delta Winding
FDA710 for Star Winding
Document Number:
XE-FDA7PM-R0A
FIRE RESEARCH CORPORATION
www.reresearch.com
26 Southern Blvd., Nesconset, NY 11767
TEL [phone] FAX [phone] TOLL FREE 1.800.645.0074

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CONTENTS Table of Contents
CONTENTS................................................................................................................ 2
INTRODUCTION ...................................................................................................... 3
Overview................................................................................................................ 3
Features.................................................................................................................. 3
Specications......................................................................................................... 3
GENERAL DESCRIPTION ....................................................................................... 4
Components ........................................................................................................... 4
Controls and Indicators.......................................................................................... 5
INSTALLATION ........................................................................................................ 6
Install Display Module........................................................................................... 6
Install Signal Interface Module.............................................................................. 6
Install Current Sensor ............................................................................................ 8
Install Voltage Transformer.................................................................................... 8
Install Optional Temperature Sensor ..................................................................... 8
Install Optional Buzzer .......................................................................................... 8
OPERATION ............................................................................................................ 10
WIRING.................................................................................................................... 12
Connectors and Cables......................................................................................... 12
Voltage Transformers........................................................................................... 14
Current Sensors.................................................................................................... 15
Star Winding Connections ................................................................................... 16
Delta Winding Connections ................................................................................. 17
List of Figures/Table
Figure 1. Controls and Indicators............................................................................... 5
Figure 2. Display Module Mounting Dimensions ..................................................... 7
Figure 3. Signal Interface Module Mounting Dimensions ........................................ 7
Figure 4. Current Sensor............................................................................................ 9
Figure 5. Voltage Transformer ................................................................................... 9
Table 1. Line Displays ............................................................................................. 11
Figure 6. Display Module Wiring ............................................................................ 12
Figure 7. Signal Interface Module Wiring .............................................................. 13
Figure 8. Voltage Transformer Wiring ..................................................................... 14
Figure 9. Current Sensor Wiring.............................................................................. 15
Figure 10. Star Winding Connections...................................................................... 16
Figure 11. Delta Winding Connections.................................................................... 17

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INTRODUCTION
Overview
The three phase generator output display panel is rated for 50/60 Hz generators
from 10 to 135 kW with delta or star windings.
The display module has ultra-brite LEDs that show the generator frequency,
voltage, and current. When the generator is off line the display shows total accumulated
generator hours.
The signal interface module is mounted close to the current sensors and voltage
transformers so that cable runs are short. Current and voltage information is passed to
the display module over a two wire datalink.
Built in safety features include voltage uctuation, current overload and high
temperature warnings.
Features
Generator Hourmeter
Audible Alarm Buzzer (Optional)
Temperature Sensor (Optional)
Specications
Display Module
Dimensions: 4 1/4" Wide by 4 1/4" High
Control Box
Supply Power: 12 VDC
Supply Current: 1.25 Amps
Dimensions: 5 7/8" by 3 3/4" by 1 7/8"
Current Sensor
Winding Ratio: 150 : 5
Voltage Transformer
Input: 120/240 VAC
Output: 12/24 VAC @ 0.2A

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GENERAL DESCRIPTION
Components
The three phase generator display consist of the following components:
Display Module
Signal Interface Module
Three (3) Current Sensors
Three (3) Voltage Transformers
Temperature Sensor (Optional)
Audible Alarm Buzzer (Optional)
Cables
Display Module
The display module is waterproof and can be mounted anywhere on the electrical
panel. The display module has a square ange with overall dimensions of 4 1/4" by 4 1/4".
A cutout hole of 3 3/4" in diameter is required.
Signal Interface Module
The signal interface module is waterproof with overall dimensions of 5 7/8" by
3 3/4" by 1 7/8". Clearance for the cables is required. This module is mounted close to the
current sensors and voltage transformers so the cable runs are short. Current and voltage
information is passed to the display module over a two wire datalink.
Current Sensor
The current sensors are used to measure current flow through a wire by
electromagnetic induction. Each phase wire to the main circuit breaker is run through
a current sensor opening (hole); one wire through each current sensor.
Voltage Transformer
The voltage transformers supplied work with 120 or 240 volt AC systems.
The transformers should be securely mounted inside the electrical box.
Temperature Sensor (Optional)
The optional temperature sensor is installed as required.
Audible Alarm Buzzer (Optional)
The optional buzzer is installed as required.
Cables
Refer to the Wiring Section.

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Controls and Indicators
There is a STATUS LED located on the control box. All other controls and
indicators are located on the front of the display module.
FREQUENCY Hz Display
Shows generator frequency in hertz.
LINE Displays
Shows a number that corresponds to a line in the chart to the left of the display.
VAC VOLTAGE Display
Shows the generator output in volts of the selected line.
AMPS CURRENT Display
Shows the current in amperes of the selected line.
MODE Button
Press to show total generator hours and sensor temperature.
LINE Button
Selects the line from the chart that is shown on the voltage and current displays.
See Operation Section for complete description.
Figure 1. Controls and Indicators
LINE
Button
MODE
Button
FREQUENCY
Display
AMPS
CURRENT
Display
VAC
VOLTAGE
Display
Line Selected
for Voltage
Display
Line Selected
for Current
Display

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INSTALLATION
Ensure that the generator power rating and the display rating match. Refer to
Programming Section.
Install Display Module
1. Measure and mark mounting location for display module panel cutout and mounting
screw holes. Make sure there is clearance behind the panel for the module and
cables before cutting holes. Refer to Figure 2 for layout and dimensions.
2. Cut out a 3 3/4" mounting hole in panel.
3. Drill four holes, clearance or tapped, for #10 mounting screws.
4. Place display module in position and secure with screws.
5. Connect cable at rear of the display module. (Refer to Wiring Section.)
Install Signal Interface Module
This module is mounted close to the current sensors and voltage transformers
so the cable runs are short. Current and voltage information is passed to the display
module over a two wire datalink.
1. Measure and mark mounting location for control box mounting screw holes.
Make sure there is clearance for the box and cables before drilling. Refer to
Figure 3 for layout and dimensions.
2. Drill four holes, clearance or tapped, for #8 mounting screws.
4. Place box in position and secure with screws.
5. Connect cables at top of the box. (Refer to Wiring Section.)

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Figure 3. Signal Interface Module Mounting Dimensions
Figure 2. Display Module Mounting Dimensions
Mounting holes are clearance
or tapped for #10 screws.
Mounting holes are clearance
or tapped for #8 screws.
Panel Cutout
3 3/4" Diameter
Module extends
behind panel
less than 1/2".
3 1/2"
3/4"
4 1/4"
148mm
48mm 134.5mm
4 1/4"
3 1/2"
94mm
67mm
Display Module
Control Box

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Install Current Sensor
Three current sensors are supplied. It is best to mount the sensors in the circuit
breaker box. For each phase that is to be monitored, run the wire from the generator
through the current sensor opening (hole) to the input side of the circuit breaker.
(Refer to Wiring Section.)
Install Voltage Transformer
The voltage transformers supplied will work for 120 or 240 volt AC systems. The
transformers should be securely mounted inside the electrical box.
Each transformer will be connect to show line voltage phase and neutral or phase
to phase for star or delta windings of the generator. (Refer to Wiring Section.)
Install Optional Temperature Sensor
The temperature sensor is installed as required. (Refer to Wiring Section.)
Install Optional Buzzer
Install the buzzer close to the control module so the audible warning is easily
associated with the visual warning on the display. The optional buzzer provided by
FRC requires a cutout hole of 1-1/8" (1.125"). (Refer to Wiring Section.)

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Figure 5. Voltage Transformer
Figure 4. Current Sensor
Dimensions
A = 1.13"
B = 2.46"
C = 1.05"
Dimensions
D = 1 1/2"
H = 1 3/8"
W = 2 3/8"
MW = 2"
Current Sensor
Ratio: 150 : 5
Voltage Transformer
Input: 120/240 VAC
Output: 12/24 VAC @ 0.2A

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OPERATION
On power-up the display shows the kW rating and the winding type (delta or star)
for three seconds.
MODE Button
During normal operations the mode button is used to display the accumulated
hours and hydraulic oil temperature if this option is installed.
The rst time the MODE button is pressed, the display shows generator hours.
Generator Operating Time is:
50 hours
Over Current Warning
When the generator is operating outside the range of its rated capacity, the current
display ashes. An optional audible buzzer can also be connected for audio warning.
Voltage Out-Of-Range Warning
If the output voltage (120/240 VAC) is below 80/200 VAC or above 140/270 VAC,
the voltage display ashes. This gives the operator an indication that the generator
output falls outside the safe operating level. There is no audible alarm for the voltage
out of range warning.
Temperature Sensor(Optional )
This warning is activated if the temperature sensor rises above 180 °F. The frequency
readout ashes OIL to warn the operator and the audio alarm is activated.
Pressing the MODE button again switches the display to show sensor temperature.
Hydraulic Oil Temperature is:
150 °
Pressing the MODE button again returns the display to normal operations.

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Table 1. Line Displays
LINE Displays and Button
On power up the LINE displays are set to auto.
In auto the displays scroll continuously through all selectable options and show
the corresponding voltages and currents in the display windows.
To read the voltage and current for a specic line press and hold the LINE button
until the number corresponding to the desired selection shows in the LINE window.
(Refer to the chart next to the LINE window.)
Note: When line selections 4, 5, and 6 are active the AMPS window shows
3 dashes.
Leave the display in auto during normal operations to monitor all voltage and
current levels.
Line Window Chart Description
1. A-N Shows Voltage Phase A to Neutral
2. B-N Shows Voltage Phase B to Neutral
3. C-N Shows Voltage Phase C to Neutral
4. A-B Shows Voltage Phase A to Phase B
5. B-C Shows Voltage Phase B to Phase C
6. C-A Shows Voltage Phase C to Phase A
7. Auto Scroll Continuously Through All
Selectable Options
1. A Shows Current on Phase A
2. B Shows Current on Phase B
3. C Shows Current on Phase C

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WIRING
The following gures include the schematics, wiring diagrams, block diagrams,
and cables for the three phase generator display system.
Connectors and Cables
6 Pin Connector and Cable
Pin Wire Color Description
1 Red +12 VDC
2 Black –12 VDC
3 White Datalink (+)
4 Green Datalink (–)
5 Blue Buzzer +12 VDC
6 Brown Buzzer Ground
Figure 6. Display Module Wiring
Dual Display
For a dual display conguration a 4-Pin Y-cable (FRC P/N XE-XXDLY4-C1A)
is connected to the signal interface module 4-Pin connector. Two display extension
cables (FRC P/N XE-FD7DISP2-C10A) and two display modules can be connected.
1—The 6-Pin connector from
the display module is wired
to the signal interface
module 4-Pin connector.
The two buzzer wires are
pig-tailed off.
2—Power is supplied to the
display unit from the signal
interface module.
Notes
Blue — Buzzer +
Brown — Buzzer –
4-Pin Plug
Connected to the Signal Interface Module

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Gray 12 Pin A Connector and Cable
Pin Wire Color Description
1 Orange Temperature Sensor Supply
2 Green Temperature Sensor Signal
3 Black Temperature Sensor Ground
4 N/C
5 N/C
6 N/C
7 N/C
8 N/C
9 N/C
10 N/C
11 Red +12 VDC Supply
12 Black Ground Supply
Black 12 Pin B Connector and Cable
Pin Wire Color Description
1 Green Voltage Transformer 1
2 Blue Voltage Transformer 1
3 Orange Voltage Transformer 2
4 White Voltage Transformer 2
5 Purple Voltage Transformer 3
6 Tan Voltage Transformer 3
7 Pink Current Sensor 1
8 Gray Current Sensor 1
9 Yellow Current Sensor 2
10 Brown Current Sensor 2
11 Red Current Sensor 3
12 Black Current Sensor 3
4 Pin Connector and Cable
Pin Wire Color Description
1 Red +12 VDC Supply to the Display
2 Black –12 VDC Supply to the Display
3 White Datalink (+)
4 Green Datalink (–)
Figure 7. Signal Interface Module Wiring
Voltage Transformer
(See Figure 8)
Optional Temperature Sensor
Current Sensors
(See Figure 9)
Note: The 4-Pin connector
from the signal interface
module is wired to the display
module 6-Pin connector.
A
B
1
1
1
Red—Pin 1
Green—Pin 2
Black—Pin 3

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Note: Refer to Star or
Delta windings diagrams
for generator connections.
Secondary AC Output
12/24 VAC
To FROG
Primary AC Input
120/240 VAC
From Generator
Voltage Transformer Cable
(Refer to Figure 7)
Figure 8. Voltage Transformer Wiring
Voltage Transformers
Black Wires
Blue Wires
Green Wire
Blue Wire
(Phase A)
Black Wires
Blue Wires
Orange Wire
White Wire
(Phase B)
Black Wires
Blue Wires
Purple Wire
Tan Wire
(Phase C)

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Current Sensor Cable
(Refer to Figure 7)
Pink Wire
Gray Wire
Yellow Wire
Brown Wire
Red Wire
Black Wire
White Wire
Black Wire
White Wire
Black Wire
White Wire
Black Wire (Phase A)
(Phase B)
(Phase C)
Figure 9. Current Sensor Wiring
Current Sensors
From
Generator.

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Figure 10. Star Winding Connections
A
B
C
N
120v
120v
120v
Star Circuit
Star Winding Connections
12-Pin Deutsch
Receptacle to
Gray Connector
Refer to Figure 7.
From Generator
N C B A
N C B A
To Load
Current
Sensors
Voltage
Transformers

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Figure 11. Delta Winding Connections
Delta Winding Connections
12-Pin Deutsch
Receptacle to
Gray Connector
Refer to Figure 7
From Generator
N C B A
N C B A
To Load
Current
Sensors
Voltage
Transformers
Recommended Delta Circuit
Reference Wiring
A
B
C
N
120v 120v
240v
208v
240v
Note 1:
If the voltage reading needs
Calibration, adjust
AB (line-4),
BC (line-5),
CA (line-6).
Ref. OEM Calibration Guide
Note 2:
If the phase A & C is split for
Neutral, reverse the wiring for
phase B & C.
If the phase B & C is split for
Neutral, reverse the wiring for
phase A & C.

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NOTES

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NOTES

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