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-|Transparent Guide|-

TCD210036AA

50 mm Diameter Absolute 

Multi-Turn Rotary Encoders 

(Optical)

EPM50 Series

PRODUCT MANUAL

For your safety, read and follow the considerations written in the instruction 
manual, other manuals and Autonics website.

The specifications, dimensions, etc. are subject to change without notice for product 
improvement. Some models may be discontinued without notice. 

ᜢ ᜫ

Features

• 

Ø 50 mm housing, Ø 8 mm solid shaft multi-turn absolute rotary encoders

• 

Output interface options: Parallel, SSI (Synchronous Serial Interface)

• 

23-bit (8,388,608) total resolution

 

- 10-bit single-turn (1,024 divisions)

 

- 13-bit multi-turn (8,192 revolutions)

• 

Zero-point reset with single-turn data reset and multi-turn count reset functions

• Position memory backup
• 

CW / CCW direction setting function

• 

Overflow alarm (OVF) function

• 

Latch function (Parallel output type only)

• 

IP64 protection structure (IEC standard)

Safety Considerations

• 

Observe all ‘Safety Considerations’ for safe and proper operation to avoid hazards.

• 

᜸ symbol indicates caution due to special circumstances in which hazards may occur.

᜸ Warning

  

Failure to follow instructions may result in serious injury or death.

01. 

Fail-safe device must be installed when using the unit with machinery that 

may cause serious injury or substantial economic loss. (e.g. nuclear power 

control, medical equipment, ships, vehicles, railways, aircraft, combustion 

apparatus, safety equipment, crime / disaster prevention devices, etc.)

Failure to follow this instruction may result in personal injury, economic loss or fire.

02. 

Do not use the unit in the place where flammable / explosive / corrosive gas, 

high humidity, direct sunlight, radiant heat, vibration, impact or salinity 

may be present.

Failure to follow this instruction may result in explosion or fire.

03. 

Install on a device panel to use.

Failure to follow this instruction may result in fire.

04. 

Do not connect, repair, or inspect the unit while connected to a power 

source.

Failure to follow this instruction may result in fire.

05. 

Check ‘Connections’ before wiring.

Failure to follow this instruction may result in fire.

06. Do not disassemble or modify the unit.

Failure to follow this instruction may result in fire.

᜸ Caution

  

Failure to follow instructions may result in injury or product damage.

01. 

Use the unit within the rated specifications.

Failure to follow this instruction may result in fire or product damage.

02. Do not short the load.

Failure to follow this instruction may result in fire.

03. 

Do not use the unit near the place where there is the equipment which 

generates strong magnetic force or high frequency noise and strong 

alkaline, strong acidic exists.

Failure to follow this instruction may result in product damage.

Cautions during Use

• 

Follow instructions in ‘Cautions during Use’.

 

Otherwise, It may cause unexpected accidents.

• 

12 - 24 VDCᜡ power supply should be insulated and limited voltage / current or Class 2, 

SELV power supply device.

• 

For using the unit with the equipment which generates noise (switching regulator, 

inverter, servo motor, etc.), ground the shield wire to the F.G. terminal.

• 

Ground the shield wire to the F.G. terminal.

• 

When supplying power with SMPS, ground the F.G. terminal and connect the noise 

canceling capacitor between the 0 V and F.G. terminals.

• 

Wire as short as possible and keep away from high voltage lines or power lines, to 

prevent inductive noise.

• 

Check the wire type and response frequency when extending wire because of 

distortion of waveform or residual voltage increment etc. by line resistance or capacity 

between lines.

• 

This unit may be used in the following environments.

 

- Indoors (in the environment condition rated in ‘Specifications’)

 

- Altitude max. 2,000 m

 

- Pollution degree 2

 

- Installation category II

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