Highlights
- Interface CANopen®
- Redundant version
- Magnetic sensing method
- Operating temperature -40…+85 °C
- Protection IP 67
- Flange connector M12, 5-pin
- Designed for harsh environmental conditions
- Removable rubber plugs for drainage
- E1 approval (KBA), UL approval / E217823
- Load dump protection
- Integrated inclination sensor
Technical Specifications
| Technical data – electrical ratings | |
|---|---|
| Voltage supply | 8…36 VDC |
| Reverse polarity protection | Yes |
| Short-circuit proof | Yes |
| Consumption typ. | 30 mA (24 VDC, w/o load); 60 mA (24 VDC, w/o load, redundant) |
| Initializing time typ. | ≤ 0.5 s after power on |
| Interface | CANopen® |
| Function | Linear position feedback |
| Profile conformity | CANopen® CiA DS 301, DS 406, DS 410 |
| Measuring range | Up to 7.8 m (linear position); 0…360° (inclination angle) |
| Resolution | 0.1 mm (linear position); 0.1 ° (inclination angle) |
| Temperature coefficient | 0.04 °/K (inclination angle) |
| Linearity | ±0.3 % (linear position); ±0.2° (inclination angle) |
| Absolute accuracy | ±0.6 % FS (+25 °C / linear position); ±1.1 % FS (-40…+85 °C / linear position); ±0.3 ° (+25 °C / inclination angle) |
| Sensing method | Magnetic |
| Code sequence | Programmable |
| Load dump protection | ISO 16750-2; Test Level 4, 12 V / 24 V systems |
| Interference immunity | EN 61000-6-2 |
| Emitted interference | EN 61000-6-4 |
| Programmable parameters | Operating modes; Rotating direction; Scaling; Zero position |
| Approval | UL approval / E217823; E1-type UN ECE 10R06; CE |
| Technical data – mechanical design | |
| Protection EN 60529 | IP 67 (housing, drainage holes closed); IP 54 (cable inlet) |
| Material | Cable: stainless steel cable AISI 304 coated with nylon PA12; Housing: plastic |
| Operating temperature | -40…+85 °C |
| Service life | Typ. 500.000 strokes (depends on the type of load) |
| Measuring length | 7.8 m |
| Cable acceleration | ≤10 m/s² |
| Cable speed | ≤1 m/s |
| Cable diameter | 0.7 mm |
| Cable fastening | Eyelet; Height: 5 mm; Internal diameter: 8 mm; Outer diameter: 15 mm |
| Pull-in force | >1.5 N (pull-in force reduced at low temperatures) |
| Pull-out force | ≤8 N |
| Resistance | EN 60068-2-6; Vibration 10 g, 10-2000 Hz; EN 60068-2-27; Shock 50 g, 11 ms |
| Weight approx. | 625 g |
| Connection | Flange connector M12, 5-pin |
| Instruction | Please consider the assembly instructions |
Order code
| GCA5-PM078.RCN.CC0.A.136 | [078] 7.8 m · [N] flange socket radial, M12, 5-pin · [CC] 8…36 VDC, CANopen (DS 406) redundant (2-channel design) · [136] inclinometer 1-dimensional / 0…360° |
CANopen® features
- Profiles: communication profile DS 301 V4.2, encoder profile DS 406 V4.0.2, LSS service profile DS 305 V3.0, inclinometer profile DS 410 V1.3
- Operating modes: time-driven (Event-Time) and synchronous transmission (Sync); node monitoring: Heartbeat (default: disabled)
- Programmable parameters: operating modes, rotating direction, scaling and zero position
- Default settings: baud rate 250 kbit/s; Node-ID 4 (04h) for channel A and Node-ID 5 (05h) for channel B; time-driven transmission 100 ms
- Data transfer: PDO 1 linear position (in steps of 0.1 mm), PDO 2 inclination angle (in steps of 0.1°)
M12 flange connector pin assignment
| Pin 1 | CAN_GND (ground connection relating to CAN) |
| Pin 2 | +Vs (voltage supply) |
| Pin 3 | GND (ground connection relating to +Vs) |
| Pin 4 | CAN_H (CAN bus signal, dominant high) |
| Pin 5 | CAN_L (CAN bus signal, dominant low) |
The GND and CAN_GND terminals are internally connected and identical in their functions.
Manufacturer ordering reference: options
| Measuring length | 6.0 m (060) or 7.8 m (078) |
| Cable fastening | Ring (R) |
| Cable diameter | 0.70 mm (C) |
| Connection | Radial cable, 2 m (L) or radial flange socket M12, 5-pin, male contacts, A-coded (N) |
| Supply / output | 8…36 VDC, CANopen (DS 406) (CA) or redundant (2-channel design) (CC) |
| Inclinometer option | 1-dimensional / 0…360° (136) or not selected |
| Terminating resistor option | With integrated terminating resistor (4816) or no option |
The options above are taken from the ordering reference in the manufacturer’s data sheet. The version on our site has the code GCA5-PM078.RCN.CC0.A.136; contact us for any other configuration.
Browse other Baumer products or the Sensors category. Related models: Baumer GCA3.
Frequently asked questions
What are the default baud rate and Node-IDs?
Baud rate 250 kbit/s; Node-ID 4 (04h) for channel A and Node-ID 5 (05h) for channel B. Transmission is time-driven at 100 ms by default.
Is node monitoring (Heartbeat) enabled by default?
No; according to the data sheet, Heartbeat is disabled by default.
Which data is transmitted by which PDO?
PDO 1 carries the linear position (in steps of 0.1 mm), PDO 2 the inclination angle (in steps of 0.1°).
Are other measuring lengths or options available?
The manufacturer’s ordering reference lists measuring lengths of 6.0 m (060) and 7.8 m (078), radial cable or M12 flange socket, redundant output, inclinometer and terminating resistor options. Contact us for configurations other than the version on our site.
Related service: control systems for cranes and aerial work platforms.




