B&R 8BAC0123.001-1
Incremental encoder interface for installation in ACOPOSmulti modules Evaluation of incremental encoders with push, pull or push-pull outputs with no complementary signal Evaluation of incremental encoders with symmetrical push-pull outputs that cannot handle such high loads Encoder supply +5 V Connection for temperature sensor ACOPOSmulti plug-in module, incremental encoder interface for 5 V single-ended and 5 V differential 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
| 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 | 0xA37E |
| Slot | Slots 1 and 2 |
| Max. power consumption | PModule [mW] = 25 V * (IEncoder [mA] * 0.42 + 48 mA) |
Encoder connection
| Electrical isolation / Encoder - ACOPOSmulti | Yes |
| Max. encoder cable length / Incremental encoders | 25 m |
| Module-side connection | 15-pin male DSUB connector |
| Status indicators | UP/DN LEDs |
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 |
Inputs A, B, R
| Single-ended signals / Input voltage for low | <1.0 V (against COM) |
| Single-ended signals / Input voltage for high | >2.4 V (against COM) |
| Single-ended signals / Maximum input voltage | -10 V / +13 V (against COM) |
| Differential signals / Differential voltage | ±0.8 V to ±23 V |
| Differential signals / Maximum input voltage | -10 V / +13 V (against COM) |
| Input resistance | See block diagram. |
Incremental encoder operation
| Signal form | Square wave pulse |
| Evaluation | 4x |
| Input frequency | Max. 25 / 50 / 100 / 200 kHz |
| Counter frequency | Max. 100 / 200 / 400 / 800 kHz |
| Reference frequency | Max. 25 / 50 / 100 / 200 kHz |
| Distance between edges | Min. 2.6 / 1.3 / 0.7 / 0.4 µs |
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.