Hercules Encoders
Specifications
Mechanical
Shaft Speed
Shaft Direction
Standard Shaft Sizes
Shaft Extension(s)
Shaft Seals
Mounting
Bearings
Radial Loading
Axial Loading
Accuracy
Housing
Weight (N25)
Connector
6000 RPM maximum
Bidirectional
.3747'', .4997"
Std 0.875", .50 x .05" flat
Neoprene or PTFE Options
Refer to dimensional drawings
.5000" ID ABEC 5 Spindle
90 lbs. Operating
45 lbs. Operating
+0.1º of Shaft Rotation Typical
Black Anodized Aluminum
22 oz.
6, 7, 10 Pin MS3102E or 18" Cable Out
Series N25
Heavy Duty Incremental Rotary Shaft Encoder
• Enclosure: N25-2.5'' Dia. NEMA 4 type Sealing
Servo, Flush or Flanged Mounting
• Vibration-resistant Anti-Jitter Circuitry, Shatterproof
Metal Code Discs
• Shielded ABEC 5 Stainless Steel Spindle Bearings,
Standard and Self-Mounting options
• Low Supply Current Requirement - 30 milliamps
typical per encoder, maximum of 50 mA
• Operating Voltage Flexibility - 8 to 28 Vdc or 5 Vdc
TTL Output, 5V or 8 - 15V with Line Driver
• Operating Temperature Rating designed for
extremes, from -40º to +85º C (-40º to +185º F)
Electrical
Pulse Rate
Outputs
15 kHz typical, up to 200 kHz available
NPN w/ 3.3K pullup or open collector
PNP sourcing
Line Driver (with complementary outputs)
40 Vdc maximum
15 Vdc maximum
5.5 Vdc maximum
8 to 28 Vdc
5 Vdc TTL output
Supply Current, per channel
30 mA typical, 50 mA maximum
Current Sinking
250 mA maximum
Output Duty Cycle
50/50 w/ +20% typical tolerance
Tighter to +5% by spec
Pulsed Outputs
5-10 µsec or 25-35 µsec
Rise/Fall Times
1 µsec typical, other options available
See Wiring Diagrams for Pin Outs
Output Ratings
Open Collector Transistor
Line Drivers 8-15 Vdc
5 Vdc TTL
Supply Voltage
Environmental
Operating Temp.
Shock
Vibration
Humidity
Enclosures (Sealed)
-40º to +85º C (-40º to +185º F)
50 g’s for 11 Milliseconds
5 to 2000 Hertz at 20 g’s
100% Relative Humidity
NEMA 4X equiv. — Water-tight
Electrical Connections
Function
+V
Common
Channel A
Channel B
Channel A
Channel B
Index
Index
6 Pin
B
A
D
E
C
F
C or E*
F
7 Pin
D
F
A
B
E
G
C
G
10 Pin
D
F
A
B
H
I
C
J
Cable Out
D
F
A
B
E
G
C
G
Color
Red
Black
Blue
Brown
White
Green
White
Green
* C is standard; for outputs “KI” or “LI” (line driver with index), index pin is E
For the latest specifications visit our website
www.herculesencoders.com
Dimensional Drawings
Series N25 Standard
Wire Drawings
Ordering Information
Size
N25SA=Sealed (Elastomer)
N25TA=Sealed (PTFE)
Mounting Style
1=Flush mount
3=Flange mount
Shaft Style
1=3/8" Standard Shaft
2=1/2" Standard Shaft
N25SA
—
112
-—
A Q 0600
—
AI
Index Channel
(same types as
Channel Outputs)
Connector Style
1=6 Pin rear mounted
2= 6 Pin side mounted
3= 7 Pin rear mounted
4= 7 Pin side mounted
5=10 Pin rear mounted
6=10 Pin side mounted
7=Cable rear mounted
8=Cable side mounted
Channel Outputs
(All outputs available with
complementary outputs)
A=NPN w/Pullup Res.
B=NPN Open
Collector
F=5Vdc w/Pullup Res.
G=5Vdc Open Collector
H=PNP Sourcing Output
K=5Vdc Line Driver
L=8 to 15 Vdc Line Driver
Channel Types
Q=Quadrature Outputs
P=1st Output CW Pulses
2nd Output CCW Pulses
U=1st Output Pulse Train
2nd Output Logic High
For CW Rotation, Low
For CCW Rotation
I=Index Pulse
PPR
Channel Types “U” “P” & “Q”
0090
0093
0125
0128
0180
0186
0250
0256
0360
0372
0500
0512
0720
1000
1024
If ”P” or “U” add (Square Wave)
2000
2048
1440
If “P” or “U” add (Pulsed)
4096
4000
1488
Consult factory for PPR not listed
Analog electronics
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