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AX5201-0000-0202 Beckhoff

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Internal Product Review

The Beckhoff AX5201-0000-0202 is a highly capable digital servo drive with 1.5 A nominal output current per channel and 5 A peak output current per channel. Strong braking performance from 50 W internal continuous brake power and 14 kW internal peak brake power makes this unit an excellent fit for precise motion-control applications.

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Product Description:

The AX5201-0000-0202 is a dual-channel digital servo drive from Beckhoff and belongs to the AX Digital Servo Drives series. Designed for cabinet installation, it converts a three-phase supply into controlled DC-link energy and then into high-frequency pulse sequences that energize the motor windings. It performs positioning and speed-control tasks in automated conveyors, pick-and-place axes, and packaging machinery where precise closed-loop motion is required.

The drive’s apparent power at 230 V reaches 1.2 kVA, so the supply must provide this capacity without excessive voltage drop. Energy storage in the intermediate circuit is provided by a DC-link capacitance of 235 µF, which smooths regenerated energy before it is dissipated or reused. Cabinet depth planning must accommodate the unit’s 232 mm profile, while its width of 92 mm and height of 317.70 mm establish the rest of its physical envelope. When regenerative braking exceeds the internal absorber’s capability, an external resistor with a resistance of at least 47 Ω may be connected to the designated terminals. This external path can handle up to 15 kW of peak braking power. The internal brake chopper operates with a maximum DC-link voltage of 875 V DC, which is the upper threshold before the converter issues an overvoltage fault. The unit has a mass of 5 kg and is designed for vertical mounting on a cabinet backplate.

Each channel can deliver a nominal output current of 1.5 A, with short-duration surges of up to 5 A during acceleration. Across both axes, the nominal sum current is 3 A, while the device permits a total peak current of 10 A before protective current limiting engages. Switching and conduction generate 55 W of power loss, which must be considered when establishing cabinet airflow. The internal braking resistor continuously absorbs 50 W and tolerates short bursts of up to 14 kW. This capacity allows the drive to manage frequent deceleration events without an external braking resistor when operating demands remain within the internal resistor’s limits.

Apparent Power At 230 V
1.2 kVA
DC link capacitance
235 µF
Depth
232 mm
External Brake Resistor Min
47 Ω
External Peak Brake Power
15 kW
Height
317.70 mm
Internal Continuous Brake Power
50 W
Internal Peak Brake Power
14 kW
Max Dc Link Voltage
875 VDC
Nominal Output Current / Ch.
1.5 A
Nominal Sum Current
3 A
Peak Output Current / Ch.
5 A
Power Loss
55 W
Total Peak Device Current
10 A
Weight
5 kg
Width
92 mm

Frequently Asked Questions about AX5201-0000-0202:

Q: What is the apparent power rating at 230 V for the AX5201-0000-0202?

A: This drive delivers an apparent power of 1.2 kVA at 230 V.

Q: What is the nominal output current per channel of the AX5201-0000-0202?

A: The nominal output current per channel is 1.5 A on this model.

Q: What is the internal peak brake power provided by the AX5201-0000-0202?

A: The internal peak brake power capability is 14 kW.

Q: What is the minimum resistance for an external brake resistor for the AX5201-0000-0202?

A: The minimum value for an external brake resistor required is 47 Ω.

Q: What is the total peak device current for the AX5201-0000-0202?

A: The total peak device current reaches up to 10 A.

Part Number Axes Rated cont. current(A / axis) Peak current(A / axis) Supply voltage (VAC) Typical motor size
AX5201-0000-0202 2 1.5 5 3 × 100-480 ±10 % Dual-axis, very-low-power ≤ 0.75 kW each
AX5203-0000-0202 2 3 10 3 × 100-480 ±10 % Dual-axis, small servos ≤ 1.2 kW each
AX5206-0000-0202 2 6 13 3 × 100-480 ±10 % Dual-axis, medium servos ≤ 2.5 kW each
AX5103-0000-0202 1 3 7.5 3 × 100-480 ±10 % Single-axis, small servo ≤ 1.2 kW
AX5106-0000-0202 1 6 13 3 × 100-480 ±10 % Single-axis, medium servo ≤ 2.5 kW
AX5112-0000-0202 1 12 26 3 × 100-480 ±10 % Single-axis, heavy servo ≤ 4 kW
Code What it usually means
F2A0 Feedback polarity or commutation check failed during start-up/low speed
F184 Encoder wired to channel 1 but configured as channel 2, or wrong IDN mapping
FD41 Line over-voltage surge or wrong supply-voltage parameter
FD42 Brown-out, phase drop or supply parameter set too tight
FD4B Supply dip or undersized transformer during load peak
FD4C Excess regenerative energy; brake resistor missing/undersized
FD4D Heatsink temp too high, fan blocked or ambient > 55 °C
FD4E 24 V auxiliary supply absent or unstable
FD17 Calculated thermal model exceeded (duty cycle too heavy)
FD45 Internal brake resistor overheated; add external unit or regen module
Error Code Diagnostic Message (Beckhoff wording) Likely Cause(s) Recommended Action / First Steps
F2A0 Commutation error Motor not correctly commutated

• Execute S-0-0099 reset

• Verify motor/feedback wiring & pole count

• Review IDNs P-0-0069 (commutation monitoring) & P-0-0150 (feedback selection)

F184 Feedback “general”: Commutation feedback is not feedback 2 Feedback channel assignment mismatch

• Correct feedback mapping in TwinCAT Drive Manager

• Check encoder connector & option card seating

FD41 Mains supply: Umains too high Line-side over-voltage, regen energy, incorrect supply tap

• Measure incoming AC line; keep within 100-480 V spec

• Add/size brake resistor or regen unit if peaks occur

FD42 Mains supply: Umains too low Brown-outs, undersized transformer, phase loss

• Verify all phases present & tightly within tolerance

• Inspect supply wiring, fuses, contactors

FD4B DC-link undervoltage DC-bus sag during heavy load or supply dip

• Check DC-bus capacitors & wiring

• Stabilize mains or add DC-link choke

FD4C DC-link overvoltage Excess regen energy, brake resistor not connected or sized too small

• Inspect brake resistor (external or internal)

• Enable dynamic braking in parameters

FD4D Cooling error – shutdown Heatsink/fan blockage, ambient > 55 °C, fan failure

• Clean/replace fan & filters

• Improve cabinet ventilation or reduce load

FD4E Control-voltage error 24 V control supply missing, unstable or wired incorrectly

• Measure 24 VDC rails (±5 %)

• Check PSU sizing and wiring integrity

FD17 Motor overload shutdown Continuous torque > 100 % rms, excessive duty cycle, wrong motor data set

• Allow motor to cool; inspect load

• Verify IDNs for motor thermal model & current limits

FD45 Continuous power internal brake resistor too low Internal brake resistor thermally overloaded for duty required

• Check duty cycle vs. resistor rating

• Add external brake resistor or regen module as needed

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