Servomotor without fan, OCT
Servomotor without fan, resolver
Servomotor without fan, OCT
Servomotor without fan, resolver
The AM8121 low-voltage servomotor is suitable for highly dynamic drive solutions in compact design in the voltage range of < 50 V DC. The standstill torque of the motor depends on the winding and is in the range of < 1.5 Nm. It is available with the OCT feedback system (absolute encoder). The low-voltage servomotor with flange code F2 (58 mm) and motor length 1 has a shaft diameter b = 9 k6 and a free shaft end of d = 20 mm.
Product status:
regular delivery
| Product variants | Standstill current | Standstill torque | Rated speed |
|---|---|---|---|
| AM8121-wFyz | 4.0 A | 0.50 Nm | 3000 min-1 |
| AM8121-wJyz | 8.0 A | 0.50 Nm | 6000 min-1 |
Product information
| Data for 48 V DC | AM8121-wJyz |
|---|---|
| Motor type | permanent magnet-excited three-phase synchronous motor |
| Nominal voltage | 24…48 V DC |
| Standstill torque | 0.50 Nm |
| Rated torque | 0.48 Nm |
| Peak torque | 1.93 Nm |
| Rated speed | 6000 min-1 |
| Rated power | 0.302 kW |
| Standstill current | 8.0 A |
| Peak current | 30.1 A |
| Torque constant | 0.063 Nm/A |
| Rotor moment of inertia | 0.134 kgcm² |
| Motor feedback | OCT, 24 bit, SIL 2-capable, single-turn or multi-turn absolute encoder, electronic nameplate
OCT, EnDat® 3, 19 bit, SIL 3-capable, single-turn or multi-turn absolute encoder, electronic nameplate |
| Cooling | convection |
| Connection technology | itec® plug |
| Ambient temperature (operation) | +5…+40°C |
| Approvals/markings | CE, cURus, EAC |
All electric quantities are RMS values.
| Housing data | AM81xx |
|---|---|
| Protection rating | IP54, IP65 (shaft seal) |
| Design form | flange-mounted according to IM B5, IM V1, IM V3 |
| Material | aluminum |
| Coating/surface | dark gray powder coating, similar to RAL7016 |
| Dimensions | AM8121-wJyz |
|---|---|
| a | 40 j6 |
| b | 9 k6 |
| d | 20 mm |
| l | 63 mm |
| r | 58 mm |
| k (without brake) | 111.5 mm |
| k (with brake) | 146 mm |
| Order reference
AM8121-wJyz | |
|---|---|
| w = 0 | smooth shaft |
| w = 1 | shaft with groove and feather key according to DIN 6885 |
| w = 2 | smooth shaft with IP65 sealing ring (only for AM812x, AM813x, AM814x) |
| w = 3 | shaft with IP65 sealing ring, shaft with groove and feather key (only for AM812x, AM813x, AM814x) |
| w = 4 | shaft with IP65 sealing ring, smooth shaft and sealing air connection (not for AM811x) |
| w = 5 | shaft with IP65 sealing ring, shaft with groove and feather key and sealing air connection (not for AM811x) |
| x | winding code |
| y = 0 | 2-cable standard: feedback resolver |
| y = 1 | One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, single-turn, absolute position within one revolution, 18 bit resolution |
| y = 2 | One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, multi-turn, absolute position within 4096 revolutions, 18 bit resolution |
| y = G | One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, single-turn, absolute position within one revolution, resolution 24 bit, SIL 2-capable (Mandatory for TwinSAFE Safe Motion functions at ELM72xx-9018) |
| y = H | One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, multi-turn, absolute position within 4096 revolutions, resolution 24 bit, SIL 2-capable (Mandatory for TwinSAFE Safe Motion functions at ELM72xx-9018) |
| y = I | EnDat® 3; One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, single-turn, absolute position within one revolution, resolution 19 bit, SIL 3-capable (mandatory for TwinSAFE Safe Motion functions at AX8xxx-x2xx), only for AM812x to AM814x at ELM72xx | estimated market release 1st quarter 2025 |
| y = J | EnDat® 3; One Cable Technology for power and feedback: feedback transmission via motor cable, no feedback cable necessary, electronic nameplate, multi-turn, absolute position within 4096 revolutions, resolution 19 bit, SIL 3-capable (mandatory for TwinSAFE Safe Motion functions at AX8xxx-x2xx), only for AM812x to AM814x at ELM72xx | estimated market release 1st quarter 2025 |
| z = 0 | without holding brake |
| z = 1 | with backlash-free permanent magnet holding brake |
| AM8121-wxyz-9000: flange and shaft compatible with AM312x-wxyz-0000 | |
| The options cannot be installed in the field. |
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