B&R 8BAC0123.000-1
Incremental encoder and SSI absolute encoder interface for installation in ACOPOSmulti modules Evaluation of incremental/SSI encoders with output signals in accordance to RS422 Encoder monitoring Encoder supply +5V and +24V Connection for temperature sensor Evaluation of tracer pins possible ACOPOSmulti plug-in module, incremental encoder and SSI absolute encoder interface for RS422 signals
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
Servo amplifiers, motors, encoders and cables are matched sets. If this part is no longer available in its original form, the manufacturer's newer generation usually will not pair with the rest of the axis, so an upgrade normally covers the drive, motor and cables together. Send us the nameplate details and we will confirm availability of an exact spare or scope a compatible upgrade.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
General information
| Max. power consumption / Encoder power supply 5 V | PModule [mW] = 25 V * ((IEncoder [mA] * 0.42) + 0.45) |
| Max. power consumption / Encoder power supply 24 V | PModule [mW] = 25 V * (IEncoder [mA] + 0.45) |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / UL | cULus E225616 Power conversion equipment |
| Certifications / KC | Yes |
| Module type | ACOPOSmulti plug-in module |
| B&R ID code | 0xA37D |
| Slot | Slots 1 and 2 |
Encoder connection
| Electrical isolation / Encoder - ACOPOSmulti | Yes |
| Module-side connection | 15-pin male DSUB connector |
| Status indicators | UP/DN LEDs |
| Encoder monitoring | Yes |
| Max. encoder cable length | 100 m |
Encoder power supply 5 V
| Sense lines / Quantity | 2 |
| Sense lines / Max. compensation | 2x 1.5 V |
| Protective measures / Overload-proof | Yes |
| Protective measures / Short-circuit proof | Yes |
| Output voltage | 5 V ±5% |
| Load capacity | 350 mA |
Encoder power supply 24 V
| Protective measures / Overload-proof | Yes |
| Protective measures / Short-circuit proof | Yes |
| Output voltage | 24 V ±10% |
| Load capacity | 300 mA |
| Sense lines | No |
Inputs A, B, R, D
| Signal transmission | RS422 |
| Differential voltage | ±0.5 V to ±7 V |
| Common-mode voltage | -10 to +13 V |
| Terminating resistor | 120 Ω (difference) |
Incremental encoder operation
| Signal form | Square wave pulse |
| Evaluation | 4x |
| Input frequency | Max. 50 / 100 / 200 / 400 kHz |
| Counter frequency | Max. 200 / 400 / 800 / 1600 kHz |
| Reference frequency | Max. 50 / 100 / 200 / 400 kHz |
| Distance between edges | Min. 1.3 / 0.7 / 0.4 / 0.2 µs |
SSI absolute encoder operation
| Coding | Gray, binary |
| Baud rate | 390 kbaud |
| Word size | Max. 31-bit |
| Differential voltage | Typ. 2.5 V |
Ambient conditions
| Temperature / Operation / Nominal | 5 to 40°C |
| Temperature / Operation / Maximum | 55°C |
| Temperature / Storage | -25 to 55°C |
| Temperature / Transport | -25 to 70°C |
| Relative humidity / Operation | 5 to 85% |
| Relative humidity / Storage | 5 to 95% |
| Relative humidity / Transport | Max. 95% at 40°C |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.