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Direction-Detecting Magnetic Gear Speed Sensor
RFP Series

Options
Dimensions and Wiring
Applications
DXF Data

Detects rotation direction with a single sensor,
supports various modules
.

Detects both forward and reverse rotation with one sensor (compatible with gears m1/1.5/2, verified with involute gears)./p>

Helps reduce labor costs such as drilling and installation adjustments.

Detects rotation of magnetic gears from 0 Hz, allowing detailed monitoring of start and stop movements.


RFP16A/RFP16D

Features

Detects both forward and reverse rotation with a single sensor

Contributes to cost reduction by eliminating drilling and adjustment work during installation.

Conventional Products
Two sensors are required to detect both forward and reverse rotation.
RFP16
Detects both forward and reverse rotation with a single sensor.

IP67:Seamless tip with Conical PressTM

Metal case with integrated tip and body
Cable extraction technology Conical PressTM

 
Sensor Detection Surface / Conical PressTM

Includes Setting Card

Verify the installation angle for each gear module with a single card
Align the card arrow with the forward rotation direction of the gear for verification.

 
G: Forward rotation direction of the gear

Two models based on output signal

[RFP16A-85] A/B phase signal output

[RFP16D-85] Speed / direction detection signal output

Supports m1, 1.5, 2 with a single sensor

Offers high design flexibility and reduces management costs

Measurement from 0 Hz

Allows detailed monitoring of start and stop movements.
Output circuit uses a proprietary semi-open collector method, no pull-up required

[Product Introduction Video]

Application Examples


Operation monitoring, maintenance inspection, and testing of backup or emergency generators NEW


Measurement of rotational speed in hydroelectric power generation: flow control by governors.

Comprehensive customization options available

Mounting flange
No gap adjustment required-easy installation

Custom connector
Easy to replace


Connector mounting
Tip-shape changes
Cable-length
Output-circuit alteration

Main Specifications

Name Magnetic Gear Speed Sensor with Direction Detection
Model RFP16A-85
RFP16A-85-P4M [with connecter]
RFP16D-85
RFP16D-85-P4M [with connecter]
Output Signal*1 Phase A / Phase B Signal *2 Speed / Direction Signal
(Forward: H level, Reverse: L level) *2
Output circuit Semi-open collector
(open collector + pull-up)
Pull-up Resistor Phase A: 3.3kΩ / Phase B: 3.3kΩ Speed Signal: 3.3kΩ / Direction Signal: 10kΩ
Detectable Object Magnetic Material (S45C Carbon Steel for Mechanical Structures, JIS G 4051, etc.), Standard Involute Gear
Detection Distance *3 m1:0.1 - 1.0mm*3 / m1.5:0.1 - 2.0mm*3 / m2:0.1 - 2.7mm*3
Detectine Frequency *3 0 - 15kHz*3 
Output Voltage Output voltage approximately 0.5V lower than supply voltage
Output Current ≦ 30 mA
(sink current)
Supply Voltag DC7 - 25V
Current Consumption ≦ 40 mA
Operating Temperature *4 −40℃ - +140℃(for supply voltage <15V) /
−40℃ - +126℃(for supply voltage ≧15V)
−20℃ - +80℃
Magnet Polarity at Tip South pole
Operation-check LED Orange LED: Phase A / Green LED: Phase B Orange LED: Speed Signal
Insulation Resistance  ≧ 50 MΩ (between cable bundle and case at DC 500 V Megger)
Withstand Voltage AC 500 V, 50/60 Hz, 1 min between cable bundle and case
Vibration / Shock Resistance JIS E 4031:2013 (Railway vehicle products - vibration and shock test methods): Functional vibration test: X, Y, Z: 5.4 m/s2 rms, both directions per axis, 10 min each /
Endurance vibration test: X, Y, Z: 30.6 m/s2 rms, 5 h per axis / Shock test: 300 m/s2, total 18 times (3 positive and 3 negative shocks per orthogonal axis)
Temperature Test JIS C 60068-2-14:2011
Dimensions M16(P=1 thread) x L84
Mass*5 RFP16A-85:Approx. 230g / RFP16A-85-P4M:Approx. 250g
(including cable approx. 65g/m))
RFP16D-85:Approx. 230g / RFP16D-85-P4M:Approx. 250g
(including cable approx. 65g/m)
Case Material Brass (nickel-plated)
Cable(PVC) 2 m 4-core shielded cable
conductor 0.3 sq
Accessories 2 nuts, 1 serrated washer, 1 setting card
Protection Rating IP67
RoHS RoHS Compliance
Price (Excl. Tax)
*As of February 2024
RFP16A-85: 41,800yen
RFP16D-85: 41,800yen
RFP16A-85-P4M: 44,000yen
RFP16D-85-P4M: 44,000yen
*1:Upon power-on, Phase A/B and Speed signals are L-level; Direction Detection signal is H-level
*2:Forward/reverse direction is based on installation as shown in Figure 2.
*3:Verified with 10mm tooth width.
*4:Exceeding 100℃ on the operation LED may reduce LED performance, but output is unaffected. Connector part of -P4M model has 85℃ max.
*5:Mass includes main body, 2 nuts, 1 serrated washer, 2m cable
RFP16A-85
Phase A / Phase B Signal Output
Open Ended Cable (Standard Specification)

Brown: +V
Blue: 0V
White: Phase A SIG
Black: Phase B SIG
Shield: Insulated from main bod
y

[A] M16 P=1 Thread
[B] Included Nut & Serrated Washer
[C] Surface for 14mm wrench
[D] Operation LED: Phase A / Back Side Phase B

RFP16D-85
Speed / Direction Signal Output
Open Ended Cable (Standard)

Brown: +V
Blue: 0V
White: Speed SIG
Green: Direction SIG
Shield: Insulated from main bod
y

[A] M16 P=1 Thread
[B] Included Nut & Serrated Washer
[C] Surface for 14mm wrench
[D] Operation LED: Speed
SIG

RFP16A-85-P4M
Phase A / Phase B Signal Output
Cable with connector

1 +V
2 0V
3 Phase A SIG
4 Phase B SIG
Shield connected via connector shell

[E] LF10WBPD-4P Connector Male*
*Hirose Electric Connector

RFP16D-85-P4M
Speed / Direction Signal Output
Cable with connector

1 +V
2 0V
3 Speed SIG
4 Direction SIG
Shield connected via connector shell

[E] LF10WBPD-4P Connector Male*
*Hirose Electric Connector

Extension Cable

Available in 3 lengths and 2 cable-end types (Y-type crimp terminal and plug connector)
Sensor (Connector Type)
Model: RFP16A-85-P4M
RFP16D-85-P4M
LF10WBPD-4P Connector Male*
Extension Cable Model  
Cable Length 5m Cable Length 10m Cable Length 20m
CY-RA-005 CY-RA-010 CY-RA-020 For RFP16A-85-P4M
Brown: +V
Blue: 0V
White: Phase A SIG
Black: Phase B SIG
Shield: Insulated from main body
LF10WBJ-4S* 4-pin Female Y-type crimp terminal 1.25Y-3
CY-RD-005 CY-RD-010 CY-RD-020 For RFP16D-85-P4M
Brown: +V
Blue: 0V
White: Speed SIG
Green: Direction SIG
Shield: Insulated from main body
LF10WBJ-4S* 4-pin Female Y-type crimp terminal 1.25Y-3
CC-RP-005 CC-RP-010 CC-RP-020 Common for RFP16A/D-85-P4M
1: +V
2: 0V
3: Phase A / Speed SIG
4: Phase B / Direction SIG
Shield connected via connector shell
LF10WBJ-4S* 4-pin Female LF10WBPD-4P* 4-pin Male
*Hirose Electric Connector
Note

Extending the sensor cable increases susceptibility to external noise.
The impact depends on conditions, so it is recommended to verify performance in the user's environment.

Related Products 

Other gear sensors

> See gear sensor list

For speed measurement

> See speedmeter list

For angle, position, and totalizing measurement

> See counter / totalizer list