§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ APPLICATIONThis product is an automatic synchronizer with synchronous validation display (LED) used whengenerators are connected in parallel. Smooth synchronizing can be performed with suppressed rushcurrent, less system disturbance, less generator shock by accurate circuit breaker closing at
synchronizing point after matching voltage / frequency of both generators.

■ FEATURES► Space saving is achieved with light-weight, small-size.
Mounting area is reduced to approx. 1/6 compared with our conventional product (ASY-100).

► Easy-to-see display / simple setting.
Condition can be easily grasped as this product can be used as analog indicator and appropriate
measure can be taken easily. Operation setting is easily performed from front with cover being open.

► With automatic manual control changeover function.
Automatic synchronizing start / manual synchronizing start can be selected freely.

► With reverse power prevention function at receiving.
Reverse power at receiving can be prevented by SLOW side closing designation (FB>FG).

► Reduction of wiring work is achieved.
Input of generator side takes in three phase voltage with V connection so far. Same function can beachieved with equivalent voltage input to single phase► Separate specification for Aux. power
Separates the specification between bus side input and Aux. power (AC/DC80-143V)
ASY-96-A1: Synchronizing acceleration function: ±0.05Hz
ASY-96-A2: Synchronizing acceleration function: ±0.02Hz

§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ STANDARD SPECIFICATIONITEMAC input

Control signalinput

Control output

CONTENTSSPECIFICATIONBus side input(single phase)

AC110V, 50/60Hz 5VA (*1)

Generator side input(single phase)

AC110V, 50/60Hz 0.5VA

Automatic synchronizing start
Manual synchronizing start(AUTO)(MANUAL)

SLOW side synchronizing assignment(SLOW)

Voltage increase signal(60R)

Voltage decrease signal(60L)

Governor rise signal(15R)

Governor decay signal(15L)

Alarm signal(ALARM)

Synchronizing check signal(±15°) (*3)

Breaker closing signal

(25)

Power

Display LED

Photo MOS. FET relay DC100V, 50mA or
DC24V, 100mA

Photo MOS. FET Relay (*2)
DC100V, 50mA or DC24V, 100mA

Voltage increase signal

(60R)

Red

Voltage decrease signal(60L)

GreenGovernor rise signal(15R)

RedGovernor decay signal

(15L)

Green

Breaker closing signal(25)

Green(±15°)

OrangeSignal for frequency within set value

(ΔF)

Green

Signal for voltage difference within set value

(ΔV)

Green

Alarm signal(ALARM)

Measurement
Voltage difference: VG -VB / 110 ×100 (%)
Frequency difference: FG-FB－］2-color LED］2-color LED

Red
Orange LED (green at synchronizingpoint) Total 26 points / 360° display (24points by 15° interval and 2 points at 7.5°
before and after the synchronizing point)
Green 7 segment LED: -□□.□%

Phase difference

Aux. power (*4)

DC12V, 10mA

GreenSynchronizing check signal

display

1a contact; Switching voltage / current:(% display against AC110V)(Hz)

Green 7 segment LED: -□□.□Hz
AC/ DC80-143V
AC100V 50/60Hz 1.5VA
DC110V
2.5W*1) ASY-96-A1 & ASY-96-A2 is 0.5VA*2) Relay used at outside is correspond to MM4X or LY-2N.
*3) ASY-96-A1 & ASY-96-A2 without control output synchronizing check signal (±15°) Only LED display*4) Specification for ASY-96-A1 & ASY-96-A2

§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□
ITEM

SPECIFICATION

Voltage difference±0.5%±0.03Hz±0.02Hz (ASY-96-A1 & ASY-96-A2)±50ｍs

Frequency difference
Tolerance Pulse width±10%＋(10~200ms)

Voltage adjustment pulse period
Phase difference detection±1°

Phase accuracy of synchronizing relay
Operating temperature / humidity limit±5°
0~50℃, 5~90%.RH (no condensation)

Storage temperature range－10℃~＋70℃

Appearance color / Weight

Munsell N.1. 5 (black) / ≦1kg

■ SETTINGSETTING ITEM
Voltage difference
AC110V ＝ 100%
(Rotary code switch 1)
Voltage adjustment pulse width(Rotary code switch 2)
Voltage adjustment pulse period(Rotary code switch 3)
Frequency difference(Rotary code switch 4)
Governor pulse width(Rotary code switch 5)
Breaker progressive time
5 bit DIP switch

MARKDEFAULT
VALUE

ΔV

5%

1, 2, 3, 4, 5, 7, 10 (%)

Vpw

0.5S

0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1.0 (S)

Vpint

2S

1, 2, 3, 4, 5 (S)

ΔF

0.1Hz

0.1, 0.15, 0.2, 0.25, 0.3 (Hz) (*5)

Fpw

0.5S

0.1, 0.2, 0.3, 0.4, 0.5, 0.7, 1.0 (S)

25T

50ms

10~310ms (per 10ms)(cancels if beyond the range)

SETTING RANGESW No.

ELAPSED TIME

SW1

10ms

The sum of the elapsed time that switched turned ON

SW2

20ms

becomes progressive time. (*5)

SW3

40ms

For example, when SW1, SW2, SW3 turned ON,

SW4

80ms

10ms + 20ms + 40ms = 70ms

SW5

160ms

If a time beyond the setting range is set, the control stops and an error will be displayed.
(*5) ΔF Setting & Settable progressive time

ΔF SETTINGSETTABLE PROGRESSIVE TIME

0.1Hz

10~310ms

0.15Hz10~210ms

0.2Hz

10~150ms

0.25Hz

10~100ms

0.3Hz

10~ 80ms

§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ NAME of EACH PART

Phase difference(Square LED 26 points)

Synchronizing Check
Signal ±15°: orange

Power: Green

Breaker closing
signal 25: green

Voltage control signal(2-color LED)
60R: Red
60L: Green

Signal for voltage
difference within setting
value ΔV: green

Governor control signal(2-color LED)
15R: Red
15L: Green

Signal for frequency
within setting value
ΔV: green
Alarm signal
ALARM: Red

Voltage difference:% display(7 segment LED: Green)

Setting for Voltage
difference (ΔV)

Frequency difference:
Hz display(7 segment LED: Green)

Setting for Voltage
adjustment pulsewidth (Vpw)

Setting Progressive
time of breaker (25T)
Setting for Governor
pulse width (Fpw)

Voltage adjustment
pulse period (Vpint)
Setting for Frequency
difference (ΔF)

§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ FUNCTION► Voltage balancing function
It outputs control pulse to keep the difference
between bus voltage and generator voltage
within regulated range.
► Speed matching function
It outputs control pulse to keep the difference
between bus frequency and generator frequency
within regulated range.
► Synchronizing check signal (±15°)
While keeping the voltage difference ΔV andfrequency difference ΔF between bus andgenerator within regulated range, it outputs
contact a signal when the phase difference
becomes ±15°. In the case of automaticsynchronizing, a safer synchronizing can beachieved by using a series connected breakerclosing signal (25).
► Synchronizing function
While keeping the voltage difference ΔV andfrequency difference ΔF between bus andgenerator within regulated range, in order toopen the breaker at synchronizing point, itestimates the progressive time of closing
breaker and outputs breaker closing signal (25)right before the synchronizing point.
ON time of synchronizing signal equals
progressive time + 200ms.

► Setting function
Setting of Voltage difference, frequency difference,progressive time of breaker, and each control
signal of pulse width, pulse period is possible.
► Synchronization error (alarm) signal
If synchronization error occurred continuously
3 times, alarm LED will lights up and contact
signal will output after 1 sec.
Synchronization error is the case that in spite of
the output of breaker closing signal (25), the phasedifference between bus side and generator side
exceeds 10 degree. The alarm can be released by
no-voltage input or by OFF of synchronizing start(both manual and automatic).
► Synchronizing acceleration function
When frequency difference is within ±0.05Hz andthe change of phase difference becomes flat, inorder to accelerate the synchronizing, after 3 sec. itoutputs governor pulse signal automatically. The
governor pulse signal is 15L signal at the time of
SLOW side closing designation, 15R at the time ofno SLOW side closing designation.

§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ CONTROL RANGE► INPUT RANGE
Bus voltage: 90~125V
Generator voltage: ≧80VSystem frequency: 50 ± 3Hz, 60 ± 3HzFrequency difference: within ±4Hz
Other than those above: control stops, displays become error.
► CONTROL INPUT (1a contact switching voltage / current DC12V, 10mA)(1) Automatic synchronizing start and manual synchronizing start
START INPUTOUTPUT

Automatic synchronizing

Manual synchronizing

ON

OFF

60RL, 15RL, Synchronizing check signal (±15°), 25OFF

ON

Synchronizing check signal (±15°) only

OFF

OFF

Lighting up POWER LED onlyONON

E8 display (double ON designation in START INPUT)

ON: terminal short; OFF: terminal open(2) Specify of generator SLOW side closing.
ON (terminal short): closing from SLOW side (FB>FG)OFF (terminal open): random closing direction (FB>FG or FB<FG)■ CONNECTION DIAGRAM( ASY-96 )( ASY-96-A□ )§ Generator Digital CONTROLLER §Automatic synchronizer ASY-96/ ASY-96-A□■ DIMENSIONS (ASY-96 / ASY-96-A□)■ PURCHASE SPECIFICATIONS
ASY-96(1) Type

Note: Product and the test report are ship in default setting.
Change to your request settings according to the manual instruction before use.

(2) Input Voltage

ASY-96-A□(1) Type
ASY-96-A1: Synchronizing acceleration function: ±0.05Hz
ASY-96-A2: Synchronizing acceleration function: ±0.02Hz(2) Input Voltage(3) Aux. Power (AC/ DC80-143V)