Danaher Controls SERIES AD25 Data Sheet

SERVO DUTY

SERIES AD25

Single- / Multi- Turn Absolute Encoder

Key Features

• Special Conical Shaft for Concentric Motor
Mounting

• Up to 22 Bits of Singleturn Absolute
Positioning for Smooth Low Speed Motor
Performance

• Integrated On-Board Diagnostics to
Monitor Encoder Health

ACURO

™

brand

SPECIFICATIONS

STANDARD OPERATING CHARACTERISTICS

Supply Voltage: 5 VDC, +10% / –5%
Current Consumption (w/o output current):

Single-turn:
Multi-turn:

Absolute Accuracy: ± 0.01° mechanical (36 arc-sec.)
Repeatability: ± 0.002° mechanical (7.2 arc-sec.)
Connection: 1 ft. Cable (30 cm)

Incremental Signals (SSI models only)

Resolution: 2048
Format: A, B Quadrature,1 Vpp Sine wave

SSI Interface

Resolution:
Single-turn: 13 Bits
Multi-turn resolution: 12 Bits
Interface:
Number of lines: 4 unidirectional (2 for clock; 2 for data)
Electrical Interface: RS 422
Transmission speed: 70 kHz to 2 MHz per SSI definition

BiSS Interface

Resolution:

£ 45 mA (at 5V)

£ 85 mA (at 5V)

Single-turn resolution: 22 Bits
Multi-turn resolution: 12 Bits
Interface:
Signals: Clock unidirectional (from master to encoder);

Data unidirectional (from encoder to master)

Electrical Interface: RS 422
Number of lines: 4 unidirectional (2 for clock and 2 for

data)

Transmission speed: 70 kHz – 10 MHz
Transmission security: 1 start bit, 1 stop bit, 6 Bit CRC
Diagnostic functions: possible failure modes are

constantly checked with the following functions
LED current sensing: Pollution, condensation, over-

temperature
Single-step check: Disk pollution or damage,

condensation, mechanical overload
Temperature monitoring: Warning message if the user-

defined limits have been reached/exceeded

For further information on the BiSS interface please
consult: http://www.biss-ic.de/

CONNECTIONS

PIN 1b 2b 3b 4b 5b 6b

Name

Color Gray/Pink White Red White/Green Yellow Black

Name Data A + 0 V -Sen B + Clock Up Sensor

Color Violet Green Brown/Green Blue Brown Blue/Red

3.10

Power Supply (Up)

PIN 1a 2a 3a 4a 5a 6a

Up = power Supply
Sensor is connected to Power Supply and 0 V (Un)
Shield connected to case

Clock B - 0 V (Un) A - Data

MECHANICAL

Shaft Size:
Tapered solid shaft: 10 mm diameter;

Cone 1:10
Tapered hub shaft: 10 mm diameter;
Cone 1:10

Shaft Loading: 5 lb axial, 20 lb radial
Shaft Speed: 10,000 RPM (continuous), 12,000 RPM

(peak-ST only)

Starting Torque: < 1.4 in-oz
Weight: 6.2 oz.
Diameter: 2.28”
Length: 1.85”

ENVIRONMENTAL

Operating Temperature: -15 to +120° C
Storage Temperature: -25 to +85° C (due to

packaging)

Enclosure Rating: IP40
Shock: 100 g’s for 6 msec duration
Vibration: 10 g’s (10 to 2000 Hz)