Simodrive 611 Error 607 ((new)) -
). They should be balanced and read low ohms. An infinite reading (OL) points to a severed cable or an open motor winding. 2. Verify the DC Link Bus
Yes – SimoCom U has a “Force Enable” diagnostic mode (use only without motor power).
Next, Jack decided to check the encoder settings. He accessed the SimoDrive 611's parameter list and verified that the encoder settings matched the motor's specifications. After confirming that the settings were correct, Jack suspected that the problem might be with the encoder or resolver itself. simodrive 611 error 607
Blown IGBT (Insulated-Gate Bipolar Transistor) power transistors or failing firing circuits.
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| Condition | Action | | :--- | :--- | | Only braking resistor open | Replace resistor only | | Braking chopper failed | Repair module (cost-effective) | | Multiple aged capacitors bulging | Replace module or perform full recap | | PCB burned near DC link terminals | Replace module (repair cost exceeds value) | | Error appears on multiple axes simultaneously | Investigate mains supply or common DC bus |
. This occurs when the drive attempts to reach a setpoint by outputting maximum voltage, but the measured motor current remains below the expected value. Root Causes The most common reasons for this fault include: Physical Disconnection Inside the power module
If there is an absence of DC link voltage, suspect a blown fuse.
A sudden surge on the incoming AC line (e.g., from power factor correction capacitors switching, lightning strikes, or grid instability) can cause the DC link voltage to exceed the threshold instantly.
When the voltage exceeds approximately (depending on the specific module variant), the drive immediately triggers Error 607, shuts down the output stages to prevent damage to the IGBTs and capacitors, and displays the alarm.
Inside the power module, an IGBT transistor (the "brake chopper") turns the braking resistor on/off. If this transistor fails short-circuit, the resistor will overheat and burn open; if it fails open-circuit, the resistor never engages.
