Features
Description
Mechanical drawings
Mechanical specifications
Electrical specifications
Environmental specifications
PDF user manual

Ordering information

AMCI DC25 Absolute Digital Single-turn Rotary Shaft Encoder

FEATURES:

IP67 rating
Stainless steel shaft
Cast aluminum housing
All mounting styles
Competitively priced
Ideal for high-shock applications - withstands mechanical shock & vibration

DESCRIPTION

The AMCI absolute digital rotary shaft encoder is another market leading DuraCoder. Utilizing the DuraCoder's resolver based sensor technology, this rotary encoder provides unique position data output in relation to the shaft position, with up to 12 bit resolution.

The absolute DC25 digital output DuraCoder assigns a unique position value to each measured increment. This prevents erroneous readings caused by power failure. When power is restored, the absolute position data is reported without the need for a homing sequence or reference signal.

Package styles for this absolute digital rotary shaft encoder include flange or servo with side or end connector.

MECHANICAL DRAWINGS

DC25 - Flange mount, end connector

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DC25 - Flange mount, side connector

click here for .pdf version of this drawing

DC25 - Servo mount, end connector

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DC25 - Servo mount, side connector

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MECHANICAL SPECIFICATIONS:

AMCI DC25 Absolute Digital Single-turn Rotary Shaft Encoder

Package style:
2.5" diameter housing available with flange or servo mounting

Shaft:
1/4, 3/8", 5/8”, or 10 mm diameter stainless

Shaft loading:

1/4", 3/8", and 10mm shafts:
40 lbs. radial/20 lbs. axial maximum shaft loading. Bearing life rated at 2X10⁹revolutions minimum at maximum shaft load.

5/8" shaft:
100 lbs. radial/50 lbs. axial maximum shaft loading. Bearing life rated at 2X10⁹ revolutions minimum at maximum shaft load.

Starting Torque:
1/4”, 3/8”, & 10mm shafts: 2.0 oz. in max @25° C
5/8” shaft: 4.5 oz. in max @25° C

Connector location:
end or side

Mating Connector: (sold separately)

	AMCI part#	Military equivalent
Straight	MS-19	MS3116F14-19S

Connector Pinout (Military Equivalent Part # MS3112E14-19P)

Pin	Function
Pin	Gray Code	Natural Binary	BCD
A	G(0)	2(0)	1
B	G(1)	2(1)	2
C	G(2)	2(2)	4
D	G(3)	2(3)	8
E	G(4)	2(4)	10
F	G(5)	2(5)	20
G	G(6)	2(6)	40
H	G(7)	2(7)	80
J	G(8)	2(8)	100
K	G(9)	2(9)	200
L	G(10)	2(10)	400
M	G(11)	2(11)	800
N	Not used	Not used	1000
P	Not used	Not used	2000
R	Direction	Direction	Direction
S	Case GND	Case GND	Case GND
T	DC return	DC return	DC return
U	Latch input	Latch input	Latch input
V	+DC input	+DC input	+DC input

ELECTRICAL SPECIFICATIONS:

AMCI DC25 Absolute Digital Single-turn Rotary Shaft Encoder

Code format:
Gray and Binary: 4096 counts per turn (max.)
BCD: 3600 counts per turn (max.)

Frequency response:
125 kbits/sec (minimum)

Output configuration:
Open Collector Sink.
5 to 24 Vdc out. Available with or without a 10 KΩ pull-up resistor.
Open Collector Source.
5 to 24 Vdc out.

Resolution:
12 bits

Drive capability:
15 mA max. Sink or Source

Power requirements:
4.75 to 26.4 Vdc | 1.5W max.

ENVIRONMENTAL SPECIFICATIONS:

AMCI DC25 Absolute Digital Single-turn Rotary Shaft Encoder

Enclosure:
IP67 (valid only with working shaft seal)

Operating temperature:
-20ºC to 85ºC standard

Shock:
50 g, 11 msec duration

Vibration:
20 g, 5 to 2000 Hz

ORDERING INFORMATION:

AMCI DC25 Absolute Digital Single-turn Rotary Shaft Encoder Ordering Guide

Generate your absolute digital rotary shaft encoder part number by using this helpful ordering guide. Starting from left to right, use the following diagram and table to choose the desired options. Each gray box must contain one or more alphanumeric character. Please note the following…

The Field Programmable Resolution and Output Code, which is Output Scaling Option 8, is standard and is available at no additional cost.
Units with the Field Programmable Resolution and Output Code uses jumpers to field select both the counts per turn and output code.
Units where a numerical Output Scaling is specified will have the counts per turn permanently set by the factory. This option will require that you place five characters in the Output Scaling box.
Customers concerned with availability should request lead times on units with both the side and end connector location options.

Part Number Character	Absolute Digital DuraCoder Selections	Readily Available Selections
Mounting Style:	F = Square Flange S = 2.5" Diameter Servo Mount (unavailable w/ the 5/8” shaft option)	F Square Flange
Shaft Seal Type:	B=Nitrile shaft seal comes standard V=Viton Seal (available only on 5/8” shaft option)	B Nitrile Seal
Shaft Diameter:	1 = 3/8" 2 = 10 mm 3 = 1/4" 4 = reserved 5 = 5/8"	1 3/8" Shaft
DuraCoder Type:	A = Absolute Parallel Level Update¹ B = Absolute Parallel Edge Update² L = Absolute Parallel Level Update, Multiplex Output ³ E = Absolute Parallel Edge Update, Multiplex Output ³	A Absolute Parallel Level Update
Output Scaling:	1 = 1024 Gray Code 2 = 1024 Natural Binary 3 = 4096 Gray Code 4 = 4096 Natural Binary 5 = 360 BCD 6 = 1000 BCD 7 = 3600 BCD 8 = Field Programmable Resolution and Output Code OR B0002 to B4096 Factory Set Binary D0002 to D4000 Factory Set BCD G0002 to G4096 Factory Set Gray Code	8 Field Programmable Resolution and Output Code
Output Configuration:	High True Outputs A = Current source, single ended 24 Vdc max. B = Current sink, single ended 24 Vdc max. C = Current sink, single ended with 10KΩ pull up resistor. Low True Outputs F = Current source, single ended 24 Vdc max. G = Current sink, single ended 24 Vdc max. H = Current sink, single ended with 10KΩ pull up resistor.	A Current Source, High True Outputs
Connector Location:	S = Side E = End (MS-19 mating connector sold separately)	S Side Connector

DuraCoder Type Notes:

Level Update – The outputs continuously update when a logic “1” voltage is supplied to the input pin.
Edge Update – The outputs update only when the voltage supplied to the input makes a transition.
Multiplex Option. This option allows multiple DuraCoders on a single set of input wires. When used, this option redefines the Direction Input Pin (pin R) as an Output Enable pin. The outputs will be passive when this pin is pulled to GND.

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Contact AMCI Sales today:

telephone: 860-585-1254
email: sales@amci.com