§DETECTOR §STATIC

SFTG-63 Series

AC TACHOGENERATOR REVOLUTION SPEED DETECTORCOMMON SPECIFICATION■ USEThis product receives output voltage signal oroutput frequency signal of AC tachogenerator anddetects starting operation signal, control signal, overspeed stop signal and outputs contact signal. As thisproduct is all electronized, detection with highsensitivity, high speed is possible. No influence ofvarious factors such as external noise.

■ FEATURES► High quality, high reliability and noise
resistance design.
► 3-step detection level equipped.
► Easy setting adjust from exterior byscrewdriver adjustor.

■ COMMON STANDARD SPECIFICATION
Item
Setting stability
Error of operating
value setting
Temperature
influence
Waveform
influenceContact system
Contact capacity
Relay type
Overvoltage
strength

Specification
Operation value: % against max. input value.
% against max. input value
at 23±20℃(Permissible limit is same as setting stability counterpart)
Error against waveform including 3rd harmonics 15% (except SFTG)
1a contact for each
AC220V, 0.5A, DC100V 0.5A, resistance load
NTI relay (manufactured by Panasonic Electric Works Co., Ltd.)
2 times (10 sec.), 1.2 times (continuation) of rating voltage.
STG

Control power
voltage strength
Influence of noise
Operation time
Insulation
resistanceWithstand voltage

1.3 times (continuation) of rating voltage.
DC: 1.3 times (continuation) of rating voltage.
SFTG AC single phase full wave rectifier waveform: 1.1 times (continuation) ofrating voltage.
Error when noise is applied (800ms, 1000V), % against max. input value (normalmode noise/common mode noise)
0.3sec. or less against setting value 90→110% input.
DC500V 50MΩ or more between electric circuit and outer case.
DC500V 20MΩ or more between input, power supply and contact
AC2, 000V (50/60Hz) 1 min. between electric circuit and outer case.
AC1, 500V (50/60Hz) 1 min. between input, power supply and contact.

Vibration
Frequency: 16.7Hz, peak to peak: 1mm, 10 min. each for X, Y and Z directions.
(false operation)
Shock
False operation: 98m/s2, endurance: 294m/s2, 2 times each for X, Y and Z directions.
External color
Black (Munsell N 1.5)
Operating temperature/humidity range-10〜+50℃, 40〜85% RH
Storage temperature range-30〜+60℃

Products List

1§DETECTOR §STATIC

SFTG-63 Series■ CONTROL OUTPUT CONDITION■ CONNECTION DIAGRAM■ DIMENSIONS (Unit: mm)

Products List2§DETECTOR §STATIC

SFTG-63 Series

AC TACHOGENERATOR REVOLUTION SPEED (FREQUENCY) DETECTOR
SFTG-HHH-63

SFTG-HHH-63(120×110×112mm/0.7kg)■ STANDARD SPECIFICATION
Item
Type name
Setting
methodInput
voltageMax. input
frequency
Control
supplySettingrange

SFTG-Description- 63

H, HH, HHH
Refer to kinds of input voltage →Refer to setting range example.→
Refer to kinds of control power.→
H1
H2
H3

Hz 〜
Hz 〜Hz 〜HzHzHz(Refer tosetting rangeexample)●Kinds of input voltage
Input voltage
AC50V
AC75V
AC100V
AC150V
AC200V
AC300V●Kinds of control supply power
Control power
voltage
DC24V■ FUNCTION
Item
Setting stability
Error of operating value setting
Dead band
Waveform influence
Temperature influence
Control power voltage influence
Noise influenceMasscharacteristics±1%±5%
3% or less
±1%
±1%
±1%
±2%
0.7kg

Input impedanceApprox. 60kΩApprox. 80kΩApprox. 100kΩ
Approx. 150kΩ
Approx. 200kΩ
Approx. 300kΩ

DC100V

Fluctuation range
DC24V±20% 3.5W
Single phase full wave rectifier waveform of
AC24V±15% 5VA
DC80V-140V 5W
Single phase full wave rectifier waveform ofAC100/110V (85V-121V) 7VA●Setting range example
H1 (LOW)
30-150Hz
20-100Hz
15-75HzH2 (RATED)
240-330Hz
160-220Hz
120-170Hz

H3 (OVER)
330-430Hz
220-290Hz
160-220Hz

Max. input
430Hz
290Hz
220Hz

■ BLOCK DIAGRAMProducts List

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