DKC03.3-040-7-FW

MPN: R911279428

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The DKC03.3-040-7-FW is a robust and versatile drive controller from Bosch Rexroth Indramat. This module has a DC bus link voltage of 700V DC. The standard firmware located in the device determines its functional features. The DKC03.3-040-7-FW module supports RS232/485 interface, Analog interface, and a DKC03.3-LK-PBK02 optional card that offers Profibus-DP interface.

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Product Description:

The dkc03.3-040-7-fw drive controller is a product series by Indramat as part of its ECODRIVE series. The model works in conjunction with the MKD motors series This model runs on a current type of 40 A. The rated input voltage it can handle is between 200 V and 480 V, and its input frequency can lie in the range of 50 - 60 Hz.

The modular design of this DKC3.3 drive controller ensures quick and easy installation as well as troubleshooting. The firmware module is placed outside the main body, allowing it to be rapidly changed in case of a malfunction. The whole unit weighs a mere 5.7 kg, making it very convenient to move around. Furthermore, it can work in temperatures up to 45 degrees centigrade and environments with a pollution degree of 2. The model has a maximum output voltage of 800 V and a maximum output frequency of 1000 Hz. The model must be operated by a trained technician in order to get the maximum performance. The DKC3.3 drive controller has physical dimensions of 360 mm (height), 261 mm (depth) and 65 mm (width). The rated control voltage for the model is 24 V and the short circuit current rating is 42000 A rms.

The dkc03.3-040-7-fw has a DC Bus Nominal Voltage of DC 700 V, which ensures robust performance even under demanding conditions. It is equipped with a branch circuit protection fuse rated at 20A, enhancing safety and reliability during operation. The controllers internal blower cooling system efficiently manages heat dissipation. The drive controller can be installed at elevations up to 1000 meters without any performance degradation. The DKC03.3-040-7-FW module supports RS232/485 interface, Analog interface, and a DKC03.3-LK-PBK02 optional card that offers Profibus-DP interface. The Analog interface uses continuous voltage or current signals to represent variables while the RS232/RS485 serial communications are used for point-to-point and multi-point connections, respectively. The Profibus-DP interface is a high-speed fieldbus protocol.

Communication Module
PROFIBUS
Input Frequency Range
50 to 60 Hz
Input Voltage Range
200 to 480 V
Maximum Input Current
16 A
Maximum Installation Elevation
1000 MSL
Maximum Output Voltage
800 V
Maxumum Output Current
40 A
Operating Temperature Range
0 to +45 degree centigrade
Rated Control Voltage
24 V
Weight
5.7 kg
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Error Code Description Likely Cause Recommended Fix
F200 DC bus overvoltage Regenerative energy too high or mains too high Check line voltage, verify/size braking resistor, monitor regen events
F201 DC bus undervoltage Supply voltage dips or power loss Inspect mains supply, wiring, and isolation transformer; stabilize power
F860 Overcurrent: short in power stage Phasetophase/ground short or motor stall Isolate motor leads, megohm test, inspect IGBTs and cabling
F203 Heatsink overtemperature Cooling fan failure or ambient >45°C Clean/replace fans, improve ventilation, reduce load duty cycle
F213 Commutation angle error Incorrect or lost encoder reference Redo encoder reference run, check feedback wiring & shielding
F220 Bleeder (brake) resistor overtemperature shutdown Braking energy exceeded resistor capacity Add external resistor or lengthen decel ramp
F226 Motor overload active RMS motor current > continuous rating Verify load inertia, reduce torque limits, allow cooldown
F230 Encoder signal frequency exceeded Motor overspeed or wrong encoder/motor data Check gearbox ratio & parameters; slow motor, verify encoder type
F277 Current measurement trim wrong (factory calibration) Control board hardware defect Replace/repair drive controller factory service
E210 Control voltage (24V) outside tolerance 24V supply sag or surge beyond ±20% Measure & stabilize 24V PSU; check wiring for shorts
Model Rated Current (A) Interface / Fieldbus Input Voltage Range DC Bus Nominal
DKC03.3-040-7-FW 40 PROFIBUSDP 200-480VAC, 50/60Hz 700V DC
DKC01.3-040-7-FW 40 Analog/Parallel (+/10V) 380-480VAC, 50/60Hz 700V DC
DKC02.3-040-7-FW 40 SERCOS 200-480VAC, 50/60Hz 700V DC
DKC11.3-040-7-FW 40 Serial/Analog (no fieldbus) 380-480VAC, 50/60Hz 700V DC
DKC03.3-100-7-FW 100 PROFIBUS DP 200-480VAC, 50/60Hz 700V DC
DKC02.3-200-7-FW 200 SERCOS 200-480VAC, 50/60Hz 700V DC
Code What it means
F218 Drive heat-sink has exceeded ≈85 °C; controller trips to protect power transistors 
F219 Thermistor inside the motor hit its upper limit; likely prolonged high RMS torque or failed cooling
F220 Braking resistor overheated because too much regenerative energy was dumped into it
F226 DC-bus dropped below the minimum threshold—mains dip, supply fault, or blown fuse/link
F228 Axis can’t keep up with the commanded profile; mechanical jam or gain/limit set too low
F229 Motor-encoder channel saw illegal sequence; bad feedback cable, noise, or loose plug
F230 Motor spun faster than encoder interface can count—overspeed or wrong feedback scaling
F234 +24 V E-stop loop opened; drive performed controlled stop then disabled torque
F860 Current in IGBT bridge > 2× peak rating—often cable short or blown transistor module
F870 Control-supply outside ±20 % window; check PSU, wiring, and any E-stop relays in series

Frequently Asked Questions about DKC03.3-040-7-FW:

Q: What is the input voltage range for the DKC03.3-040-7-FW?

A: The DKC03.3-040-7-FW can handle an input voltage range between 200 V and 480 V. This range ensures compatibility with various power systems.

Q: What cooling method does the DKC03.3-040-7-FW use?

A: The DKC03.3-040-7-FW features an internal blower cooling system. This system efficiently manages heat dissipation during operation.

Q: What is the rated current type for this drive controller?

A: The DKC03.3-040-7-FW runs on a current type of 40 A. This ensures consistent and reliable performance.

Q: What is the maximum operating temperature for the DKC03.3-040-7-FW?

A: The DKC03.3-040-7-FW can operate in temperatures up to 45 degrees centigrade. It is suitable for a wide range of environments.

Q: What is the DC Bus Nominal Voltage of the DKC03.3-040-7-FW?

A: The DC Bus Nominal Voltage is DC 700 V. This provides robust performance even under demanding conditions.


Internal Product Review

  • ‘‘The DKC03.3-040-7-FW drive controller is part of the Indramat ECODRIVE series. It handles an input voltage between 200 V and 480 V and a current of 40 A. The unit weighs 5.7 kg and measures 360 mm x 261 mm x 65 mm.’’

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