Danaher Industrial Controls Series AI25 Parallel Interface Data Sheet
Encoders
Series AI25 Parallel Interface
• Up to 14 Bit single-turn resolution
• 4096 revolution multi-turn resolution
• Short installation depth
• Safety through self-diagnostics
• Solid shaft and hollow shaft versions
°
• -40
C to +100°C Operating temperature
Dynapar™ brand
APPLICATION/INDUSTRY
The Dynapar brand ACURO Absolute Encoder
offers a modern full-feature design equipped
with Parallel interface.
DESCRIPTION
The Acuro AI25 optical absolute industrial
encoder is available in a single-turn or multiturn version. The multi-turn design is based on
a reliable high-speed gear with optical scanning
and the latest generation of OptoASIC
technology.
The mechanical concept is based on a double
ball bearing design, which is available as a
solid-shaft or hollow-shaft version in common
shaft diameters.
FEATURES AND BENEFITS
• Compact design to save valuable space
• Low power consumption
• Fast delivery of any model variant
• Additional field-bus and point-to-point
interfaces available
Code 1: Model Code 2: Bits Code 3 :Mounting Code 4: Shaft Size Code 5: Protocol Code 6: Electrical Code 7: Connector
A
C
U
R
O
4.
16
AI25
A
AI25
B
Size25
S
Acuro
O
Absolute
L
Encoder
U
T
E
Single-Turn
0010 10 Bit
0012 12 Bit
0013 13 Bit
0014 14 Bit
0360 360 PPR
(Gray excess)
0720 720 PPR
(Gray excess)
Available when Code 6
is 2
Multi-Turn
1212 12 Bit Multi-
Turn, 12 Bit
Single-Turn
Available when
Code 4 is 0 or A
0 Servo*
Available when
Code 4 is 2 or C
1 Clamping*
Available when
Code 4 is 1 or B
2 Square
Available when
Code 4 is 3, 4,
5 or 6
3 Hubshaft
* 58mm Dia.
** 2.5" Square
† 63mm BC
SPECIFICATIONS
STANDARD OPERATING CHARACTERISTICS
Single-turn Resolution: 10, 12, 13, 14 Bit, 360 PPR, 720
PPR
Multi-turn Resolution: 12 bit (only available with 12 bit ST
resolution)
Absolute Accuracy: ± 0.01° mechanical (36 arc-sec.)
Repeatability: ± 0.002° mechanical (7.2 arc-sec.)
Code format: Binary, Gray, Gray Excess
ELECTRICAL
Connection: Cable, Conin Connector,
MS Connector, Cable with Sub-D Connector (MT only)
Supply voltage: 5 VDC -5%/+10%, or 10-30 VDC
Intrinsic current consumption: 200 mA (ST), 300 mA (MT)
Output current: 30 mA per bit, short circuit protected
Frequency response: 500 kHz on single-turn, 1.5m cable*
Alarm output: NPN open collector max 5 mA
Maximum cable length: 100 m
*Data refresh rate: 70µsec is for multi-turn and
single-turn with preset
Control Inputs
Input Logic Function
Direction 1 Ascending code values
Latch 1 Encoder data continuously
Tristate (ST) 1 Outputs active
Tristate (MT) 1 Outputs at high impedence
flange**
w/tether†
Level
when turning clockwise
0 Descending code values
when turning clockwise
changing at output
0 Encoder data stored and
constant at output
0 Outputs at high impedence
(Tristate mode)
(Tristate mode)
0 Outputs active
w/o shaft seal (IP64)
0 6 mm
1 3/8"
2 10 mm
3 3/8" Hub Shaft
4 12 mm Hubshaft
5 1/2" Hubshaft
6 10 mm Hub Shaft
w/ shaft seal (IP67)
A 6 mm
B 3/8"
C 10 mm
0 Parallel
Binary
1 Parallel
Gray
Status LED: Green = OK, Red = Alarm (IP64 only, not
available on connector type J)
Preset Switch: Sets encoder to zero output at present
mechanical position (Multi-turn IP64 only, not available on
connector type J)
Control Inputs: Latch, Direction, Tri-state (see table below)
MECHANICAL
Shaft diameter:
Shaft: 6 mm (Servo Mount), 10 mm (Clamping Mount), 3/
8" (Square Flange Mount)
Hubshaft: 10mm, 12 mm, 3/8", 1/2"
Maximum shaft load:
6 mm shaft: 13 lb axial, 24 lb radial
10 mm shaft: 24 lb axial, 35 lb radial
Maximum shaft speed: 10,000 RPM (continuous), 12,000
RPM (peak)
Starting torque: < 1.4 in-oz
Weight (approx.): 350 g ST, 400 g MT
Shaft tolerance (hubshaft only): +/- 1.5 mm axial, +/- 0.2
mm radial
Flange configurations: Square, Clamp, Servo, Hubshaft
with flexible tether
Bearing life:
10
1 x 10
revolutions at 35% full rated shaft load
9
revolutions at 75% full rated shaft load
1 x 10
8
revolutions at 100% full rated shaft load
1 x 10
ENVIRONMENTAL
Operating Temperature: -40 to 100° C
Storage Temperature: -40 to 100° C
Enclosure Rating: IP64 or IP67
Shock: 1,000 m/s
Vibration: 100 m/s
0 5 VDC
2 10-30 VDC
2
(6 ms)
2
(10 to 2,000 Hz)
0 1.5m axial cable
1 1.5m radial cable
Available when Code 2
is 00XX, 0360 or
0720
6 M23 Conin
17 pin axial CW
7 M23 Conin
17 pin radial CW
J 17 pin MS axial *
K 19 pin Bayonet radial
Available when Code 2
is 1212
A Cable 1.5m radial w/
37 pin sub-D
B Cable 1.5m axial
w/37 pin sub-D
*
Status LED and Preset Switch
features not available with "J"
M4x5
0
Servo
Ø31.75mm
1.25in
19.5mm ±0.3
0.77in ±0.01
Ø42 ±0.1mm
1.65±0.004in
3/8in Dia. Shaft
10mm
0.39in
Mounting
Surface
Encoders
Code 3: Mounting
Ø48 ±0.1mm
Ø1.89 ±0.004in
45°
20°
4mm
0.16in
3mm
0.12in
Mounting
Surface
3mm
0.12in
10mm
58mm
2.28in
50mm
1.97in
0.39in
6mm
120°
1
M4x5
1
20
°
M3x5
120
°
Clamping
63.5mm
2.5in
52.4mm
2.06in
Note: two M3 set screws in
colar around hub shaft
(will not mar shaft)
7mm
0.28in
52.4mm
2.06in
Ø5.6mm
0.22in
63.5mm
2.5in
10mm
Diameter
3mm
0.12in
10mm
0.39in
19.27mm
0.76in
9mm
0.35in
15mm
0.59in
Radial Connector
Area (if used). See
Connection Diag.
Ø36mm
Ø1.42in
Mounting
Surface
2
Square Flange
Length (L)
Ø57mm
Ø2.24in
Mounting
Surface
0, 1, A, B
1.5M Cable
2.1mm
0.08in
Location of
Models with IP64
Status LED
sealing: Location of
and Preset Switch
Status LED and
on models with
Preset Switch (multi-
IP64 sealing
turn only)
15mm
0.59in
14.8mm
m
8.5m
0.33in
Ø
Ø
Cables shown in
Axial and Radial
Placement
0.58in
13mm
0.51in
R
Length (L) Mounting Surface to Rear
Mount (Code 3) Single-Turn Multi-Turn
(0) Servo 46.5/1.83 60.2/2.37
(1) Clamping 45.5/1.79 59.2/2.33
(2) Square Flng 45.5/1.79 59.2/2.33
(3) Hubshaft 49.9/1.96 67.1/2.64
Code 7: Connector
2.1mm
2.24in
0.08in
Location of
Models with IP64
Status LED
sealing: Location of
and Preset Switch
Status LED and
on models with
Preset Switch (multi-
IP64 sealing
turn only)
23mm
0.91in
17.5mm
0.69in
Mounting
Surface
Length (L)
Ø57mm
6, 7
Conin 12/17 Pin Connector
3
Hubshaft w/Tether
9.0mm
0.35in
Connectors
shown in Axial
and Radial
Placement
Hubshaft Shaft Engagement
HubShaft Min. Shaft Max. Shaft
Diameter Length Length
10mm, 3/8" 15mm (0.59") 20mm (0.79")
12mm, 1/2" 18mm (0.71") 20mm (0.79")
Length (L)
Ø57mm
Mounting
Surface
2.24in
17 Pin MS Connector, Axial
9.0mm
0.35in
J
Mounting
Surface
K
19 Pin Bayonet Connector, Axial
Length (L)
2.24in
Ø57mm
2.1mm
0.08in
Location of
Models with IP64
Status LED
sealing: Location of
and Preset Switch
Status LED and
on models with
Preset Switch (multi-
IP64 sealing
turn only)
17.5mm
0.69in
A
A
C
B
U
S
R
O
O
L
U
T
E
4.
17
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