Description
🔧 A06B-6117-C156 — Description
The A06B-6117-C156 is a FANUC αi (Alpha i) series servo amplifier internal unit (C-type) used in a dual-axis, mixed-capacity servo amplifier module.
⚙️ Identification
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Manufacturer: FANUC
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Series: αi Servo Amplifier Series
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Type: Internal unit / configuration (C-version)
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Associated Complete Module:
👉 A06B-6117-H156 -
Servo Class: αiSV 160/80 (dual-axis amplifier)
🔍 What “C156” Represents
FANUC naming logic:
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H156 → Complete servo amplifier (dual-axis)
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C156 → Internal drive/power unit inside that amplifier
👉 So, A06B-6117-C156 is the internal unit of a dual-axis amplifier with unequal capacities (160/80).
⚡ Technical Overview (SV 160/80 Class)
Typical characteristics:
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Configuration: Dual-axis (2 motors, different ratings)
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Power Class:
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Axis 1: ~11 kW (SV160)
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Axis 2: ~5.5 kW (SV80)
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Input Supply: 200–240V AC (3-phase)
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Output Current:
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High-current channel (~160A class)
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Medium-current channel (~80A class)
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Control Modes:
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Position
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Speed
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Torque
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Communication: FANUC FSSB (fiber optic servo bus)
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Cooling: Forced air (fan-cooled)
🚀 Key Features
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Drives two servo motors with different power requirements
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Ideal for machines with uneven axis loads (e.g., heavy Z-axis + lighter X/Y)
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Compact and space-saving dual-axis design
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High efficiency with regenerative energy handling
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Built-in diagnostics and protection systems
🏭 Applications
Used in:
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CNC machining centers with mixed-load axes
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Machines where one axis carries higher load (e.g., vertical axis)
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Automation systems requiring asymmetric motor control
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Gantry or hybrid motion systems
🧠 Simple Explanation
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C156 = internal electronics (drive unit)
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H156 = full amplifier (dual SV160 + SV80)
👉 It’s the core of a dual-axis FANUC drive where one motor is powerful and the other is medium-sized.
🔄 Context Comparison (Dual-Axis Series)
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C153 → 40/40 (medium/medium)
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C154 → 80/80 (high/high)
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C155 → 160/160 (very high/very high)
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C156 → 160/80 (mixed capacity)