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The RM8004 is an absolute multiturn encoder with a hollow shaft for direct rotary position measurement. It combines absolute position detection with multiturn capability for extended rotational travel. The encoder uses a magnetic sensing principle and CAN interface. Its hollow shaft construction simplifies mechanical coupling to rotating machine shafts. The unit is designed for accurate position feedback in industrial automation systems.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The RM8004 provides absolute position information across multiple shaft revolutions. Its 4,096 steps per revolution provide detailed angular measurement. The multiturn range extends to 4,096 revolutions. Binary coding provides digital position values. The encoder is suitable for applications requiring continuous rotary position feedback.
The encoder communicates using CANopen. Its factory baud rate is 125 kbit/s with node ID 32. CAN parameters, scaling, preset, baud rate, rotation direction, and node ID can be configured. This provides flexibility for distributed automation systems. The interface is suitable for machine controllers supporting CANopen.
The RM8004 uses a 12 mm hollow shaft open on one side. The shaft is manufactured from steel. Maximum mechanical speed is 6,000 rpm. The encoder provides maximum axial and radial shaft loads of 40 N and 110 N respectively. Its compact Ø36.5 mm × 74 mm form factor supports space-efficient installation.
24-bit absolute measurement
4,096 steps/revolution
4,096 revolutions
12 mm hollow shaft
CANopen communication
125 kbit/s factory baud rate
6,000 rpm
Binary code
M12 connector
IP65 protection
Rotary position feedback
Machine positioning
Conveyor systems
Industrial drives
Material handling
Motion-control systems
Mobile machinery
Automated production equipment
The RM8004 operates from -40 to 85°C. Its maximum relative humidity is 98%. The housing is rated IP65 while the shaft area is IP64. Shock resistance is specified below 300 g for 6 ms. Vibration resistance is 30 g over 10–1,000 Hz.
The encoder provides LED status indication. Green indication identifies preoperational operation. Green flashing indicates operational mode. Red flashing indicates an error message. These indicators provide local feedback during commissioning and troubleshooting. This simplifies basic encoder status verification.
| Specification | Value |
|---|---|
| Model | RM8004 |
| Encoder type | Absolute multiturn |
| Detection system | Magnetic |
| Shaft design | Hollow shaft |
| Communication | CAN |
| Interface connector | M12 |
| Connector orientation | Axial |
| Position measurement | Absolute |
| Measurement type | Multiturn |
| CAN_High | Pin 4 |
| CAN_Low | Pin 5 |
| CAN_GND | Pin 1 |
| Supply connection | Pin 2 |
| Ground/PE | Pin 3 |
| Housing | Cylindrical |
| Mounting | Hollow shaft |
| Shaft coupling | Direct |
| Output data | Digital position |
| Network type | CAN |
| Application | Rotary position |
| Application class | Industrial automation |
| Detection method | Magnetic |
| Mechanical construction | Industrial |
| Environmental design | Industrial |
| Maintenance | Low mechanical wear |
| Position retention | Absolute architecture |
| Machine integration | CAN network |
| Encoder category | Multiturn |
| Manufacturer | IFM |
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