Description
Product Introduction
The Allen-Bradley 2094-BM01-S is a 400/480V series axis module built for the Kinetix 6000 multi-axis motion system. It mounts straight onto a 2094 power rail, pulling high-voltage DC power from a central Integrated Axis Module (IAM) to drive low-to-medium inertia servo motors like the MP-Series. Packaging machinery, high-speed gantry cranes, and robotic transfer units rely heavily on this module for tight speed and position execution.
What makes the 2094-BM01-S stand out is its integrated Safe Torque-Off (STO) feature. Rather than dropping main line contactors and cycling control power every time an operator breaks a light curtain, the STO board disables output gate drives directly at the drive power bridge. This reduces mechanical stress, cuts safety reset delays, and keeps your DC bus charged for fast restarts.
Key Technical Specifications
| Parameter | Value |
| Catalog Number | 2094-BM01-S |
| Product Series | Kinetix 6000 (Bulletin 2094) |
| Input Voltage | 400/480V AC (via 2094 Power Rail DC Bus) |
| Continuous Output Current | 6.1 A RMS (8.6 A 0-peak) |
| Peak Output Current | 9.2 A RMS (12.9 A 0-peak) |
| Continuous Power Output | 3.9 kW |
| PWM Frequency | 8 kHz |
| Integrated Safety | Safe Torque-Off (STO), IEC 61508 SIL 3, ISO 13849-1 PLe |
| Communication Protocol | Sercos II / Sercos III (via SERCOS interface module) |
| Internal Shunt Power | 50 W Continuous / 5.6 kW Peak |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Dimensions & Weight | 287 mm H x 70 mm W x 272 mm D |
Application Scenarios & The “Trench” Experience
A high-speed pick-and-place cell drops an axis mid-shift. Motor status shows feedback loss, and the drive module smells like baked silicon. The machine sits dead while unworked product piles up on the upstream conveyor. With a line rate of 200 parts per minute, every ten minutes of downtime burns thousands in scrap and labor. Swapping in a replacement 2094-BM01-S gets the axis back home without requiring a full drive panel overhaul or safety circuit rewiring.
- High-Speed Packaging Lines – Rotary Cutter Drives – Drives high-duty cycle cutting heads requiring precise torque control and fast STO resets.
- Automotive Assembly – Gantry Pick-and-Place – Controls 400V servo motors across multi-axis linear gantries tied into ControlLogix motion groups.
- Material Handling – High-Speed Sorting Conveyors – Operates continuous-duty sorter drives over a common DC bus to recycle regenerative braking energy.
- CNC & Metal Forming – Feeder Axis Control – Delivers precise position feedback and rapid acceleration for coil feeders and press transfer arms.
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual Allen-Bradley Kinetix racks.
- Inbound Inspection: Every module undergoes a visual inspection for mechanical damage, chassis bent pins, cracked mounting tabs, and intact OEM labels.
- Live Rig Testing: The 2094-BM01-S is slotted onto a 2094 power rail powered by an active 2094 IAM module linked to a Sercos optical loop and a ControlLogix rack.
- Electrical Parameter Checks: We run the module under simulated motor load to test output phase balance, current sensing, internal shunt resistor switching, and thermal dissipation.
- Firmware Verification: We confirm the hardware revision, check for internal fault logs, and verify full handshakes with Studio 5000 / RSLogix 5000.
- Final QC & Anti-static Packaging: The unit is cleaned, wrapped in static-shielding material, and packed in reinforced custom foam boxes.
2094-BM01-S
2094-BM01-S
The Veteran’s Tech Trap Guide (Crucial Value-Add)
- ⚠️ DC Bus Bar Alignment: When sliding this card onto the 2094 power rail, make sure the bus bar connectors line up straight. Forcing the unit down on an angled track can bend or pit the high-voltage DC copper contacts, creating an arcing hazard under load.
- ❗ Sercos Fiber Optic Bend Radius: Never kink or overtighten the glass/plastic fiber optic cables on the front connectors. A slight pinch causes signal attenuation, leading to intermittent Node Flashing or Ring Break errors that drive technicians crazy.
- ⚠️ Safe Torque-Off (STO) Header Jumpers: If your panel uses hardwired safety, verify the STO header wiring on pins 1 through 8. If you install an “-S” drive into a panel wired for a non-safety module (or forget the external 24V safety circuit input), the drive will stay stuck in an un-resetable safety state.
- ❗ Motor Cable Shield Grounding: Ground the motor power cable shield directly to the 2094 rail ground clamp, not just to the cabinet backplate. Poor shielding lets high-frequency PWM switching noise bleed into encoder lines, triggering position jump faults.
Frequently Asked Questions (FAQ for Conversion)
Q: What does the “-S” suffix indicate in 2094-BM01-S?
A: The “-S” designates that this axis module includes built-in Safe Torque-Off (STO). This feature disables drive output power to the motor without dropping main AC input power to the system’s power rail.
Q: Can I replace a standard 2094- module with a4-?
A: Yes, but you must accommodate the Safe Torque-Off wiring connector. If the existing machine safety circuit does not use STO, you will need to wire the STO bypass header properly so the drive can enable.
Q: Does this axis module require its own AC line feed?
A: No. Axis modules (AM) draw their high-voltage DC power directly through the 2094 power rail bus bars connected to the main Integrated Axis Module (IAM). You only need to wire motor power, feedback, and control safety IO to the module itself.
Q: How do I know if my unit failed due to a drive fault or a power rail issue?
A: Check the 7-segment status display on the front panel. Fault codes like E14 (Ground Fault), E19 (Overcurrent), or E20 (DC Bus Undervoltage) narrow down whether the issue is internal inverter damage or a supply problem from the IAM.
Q: What is the warranty coverage on your surplus4- modules?
A: We provide a full 12-month warranty from the invoice date on all New Surplus and reconditioned4- units. If the module faults or fails under normal operating conditions within that period, we send a replacement or issue a full refund.
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