FANUC A06B-6110-H006 Power Supply Module -- Alpha i PSM-5.5i
Alpha i Series | PSM-5.5i | 200-240 VAC | 5.5 kW Rated | Power Regeneration | CNC Drive System
The Foundation Every Alpha i Drive System Needs
Before a single servo motor turns on a FANUC Alpha i equipped machine tool, the A06B-6110-H006 PSM-5.5i module converts the facility's three-phase AC supply into clean, regulated DC bus power. This power supply module sits at the front of the drive cabinet, handling AC-to-DC conversion and returning braking energy back to the supply grid during axis deceleration.
Technical Specifications
| Parameter |
Value |
| FANUC Part Number |
A06B-6110-H006 |
| Unit Specification |
A06B-6110-C006 |
| Model Name |
PSM-5.5i (Power Supply Module, 5.5 kW) |
| Series |
FANUC Alpha i (200 VAC input) |
| Input Voltage |
200 - 240 VAC (3-phase) |
| Input Current |
26 A |
| Input Frequency |
50 / 60 Hz |
| Rated Output Power |
5.5 kW |
| Maximum Output Power |
11 kW |
| Peak Output Power |
22 kW |
| DC Bus Output Voltage |
Approx. 283 VDC |
| Regeneration Type |
Power Regeneration (returns energy to supply) |
| Dimensions (H × W × D) |
Approx. 290 mm × 150 mm × 275 mm |
| Weight |
Approx. 4.9 kg |
Power Regeneration Benefits
The A06B-6110-H006 features power regeneration technology that returns deceleration energy back to the grid rather than dissipating it as heat. This capability reduces both heat generation inside the cabinet and net power consumption from the facility supply, particularly beneficial for machines with frequent positioning cycles.
Alpha i System Architecture
FANUC's Alpha i drive system uses a shared DC bus architecture where the PSM-5.5i serves as the sole AC-to-DC converter for an entire drive group. It occupies the leftmost position in the drive cabinet stack, powering all connected servo amplifier modules (SVM) and spindle amplifier modules (SPM) that drive feed axes and main spindles.
Compatible CNC Controllers
The A06B-6110-H006 operates with various FANUC CNC systems including:
- FANUC 0i series CNC (all variants)
- FANUC 16i, 18i, 21i series
- FANUC 30i, 31i, 32i series
- FANUC 15i series
- FANUC robot controllers using Alpha i drive hardware
Installation Requirements
Critical Installation Notes:
- Do not install power factor improvement capacitors - they interact destructively with regeneration circuits
- Input voltage must stay within 200-240 VAC range for rated performance
- Control power (CX1A connector) must be energized before or simultaneously with CNC power-on
Status LED Diagnostics
The front panel STATUS LED provides immediate diagnostic information:
- LED off - Control power not supplied or control circuit defective
- LED steady - Normal operation, main circuit powered
- LED flashing/alarm - Fault condition detected
Frequently Asked Questions
Q1: What is the difference between the PSM-5.5i and larger models in the A06B-6110 series?
The A06B-6110 series covers the full 200VAC Alpha i PSM lineup. The H006 is the PSM-5.5i at 5.5 kW continuous, while larger models include H011 (PSM-11i, 11 kW), H015 (PSM-15i, 15 kW), and others up to PSM-55i. Selection depends on total continuous power demand of connected modules.
Q2: Can the A06B-6110-H006 be used with 400VAC input supplies?
No. This module is specifically rated for 200-240 VAC three-phase input. For 400-480 VAC supplies, use FANUC's HV series (A06B-6120 family). Using this module on 400VAC without a step-down transformer will destroy it.
Q3: What causes the most common failures in this module?
Common failure modes include capacitor degradation from aging and thermal cycles, IGBT transistor failure from overcurrent events, and gate drive circuit faults. Professional repair typically involves capacitor replacement, semiconductor replacement, and fan replacement.
Q4: Does this module require special startup parameter configuration?
The PSM itself has no user-configurable parameters. However, servo parameters must be initialized correctly in the CNC before first powered test, and PSM status should be confirmed operational before commanding motor movement.
Q5: The module is listed as discontinued - how is the supply situation for replacements?
While discontinued from standard production, both surplus new-old-stock and professionally refurbished units are available through FANUC-specialist CNC parts suppliers. Reputable refurbishers test modules under load and typically provide 12-month warranties.
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