TillbakaGenerella fel
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 1. Mains cannot be switched on. | Terminal Bb1 open | 24V/ ±15V" off | - Switch on mains auxiliary
voltage/ controller voltage - Check mains connection - Check bus cable connecting equipment for short circuit - Check diagnostics „24V/ plus/minus 15V" (1) |
| 24V/ ±15V" on | - Fault in drive system Check diagnostics display (1) |
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| Terminal Bb1 closed | „Power" off („PWR") | No fault in drive system - Switch power on - Mains voltage lacking or faulty (1) - Check link circuit throttle connection - Check diagnostics display (1) |
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| „Power" on („PWR") | Mains voltage on |
| 2. Equipment fuses in supply unit blow | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 24VL-fuse F2, mains auxiliary voltage connection, controller voltage connection fuses F3, F4 | Terminal Bb1 open | „24V/ ±15V" off | Short-circuit or overload in
power section or in the 24 VL outputs - Check 24 VL outputs at the supply module and at the connected drive modules. - Check 24VL current load from the connected drives. Is the supply module overloaded? - Remove bus X1 from the supply module. Should problem still occur, then exchange supply module (usually if F3, F4 defective). If problem no longer occurs, determine drive module with short circuit or overload at the 24VL, and exchange if defective. |
| Fan fuses F5 on corresponding fan plate, F7, F8 on the front plate of the supply module (if present). | Short-circuit or overload
caused by attached fans. - Check the current load of the attached fans. - Locate defective fan or defective modular unit by removing the connecting cable and exchange, if necessary. |
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| Power fuse F1 in TVM 1, TVM 2 and KDV 1 | „Power" off („PWR") | Short-circuit in power
section - Separate link circuit busbars from supply module. |
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| „BS" on (Drive module) | - If problem continues,
exchange supply module. If problem no longer occurs, determine drive with short-circuit by
measuring resistance between L+ and L- (also check diagnostics light „BS" (1)). - If the problem occurs while drives are operating, then the supply module is overloaded. |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 3. Fans not running | - No mains auxiliary voltage
at input terminals of supply modules (only with KDV2, KDV3 and KDV4). - No fan supply voltage - Fuses F7, F8 defective (only with KDV2, KDV3 and KDV4). - Check fuses on the fan plates of the corresponding fans. - Exchange fan or modular unit. - Fan rotor mechanically blocked. |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 4. Drive cannot be shut down and remains torque free | „Power" off
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- Switch on mains voltage: (see Point 1 of this table) | |
| „Power" on „RF" off „RF" on or flashing | - Input set point - Input controller enable signal (1) - Eliminate break in motor or feedback line (1) - Motor mechanically blocked eliminate blockage - Aereate motor brake, if drive blocked - Exchange servo drive module - Exchange motor (motor feedback defective) |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 5. Drive active but not turning or cannot be moved. | „RF" off | - Input set point - Input controller enable signal (1) - Eliminate break in motor or feedback cable (1) - Motor mechanically blocked, eliminate blockage - Aereate motor brake, if drive blocked - Check load momentum - Exchange servo drive module - Motor feedback defective, exchange motor |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 6. Drive runs uncontrolled to speed after being switched on. | - Check whether speed set
point equals zero. - Exchange speed set point polarity with positive feedback of position control loop. - Position control in NC defective. - Exchange feedback cable. - Exchange servo drive module. - Exchange motor. |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 7. Unwanted halting of drives during operation. | - Check diagnostics display (1) (Problem in drive system) |
| No. Fault | Message at Terminal Strip | Diagnostics message in event of fault | Action to be taken |
| 8. Non-uniform turning of drives, non-uniform feed movement. | - Check labelling of
programming module MOD (wrong drive module or motor) - Check speed set point input value, adjust to NC output. - Check motor power connection (connections transposed, loose terminal point or a break in the cable) - Check motor feedback connection (connections transposed, loose terminal point or break in cable) - Check whether mains input at connection L1, L2, L3 of supply module is achieved using only two mains phases: * check fuses * check mains connection - Check interference suppression measures (see Chapter 5.5): * contactor and relay coils * cable shields - Aereate brakes if motor running against brakes. - Cut off mechanical coupling at motor shaft: * load moment of inertia too high? * coupling too soft? (e.g., bellows coupling) * slack in the coupling? * too much friction or is there jamming? - Optimize NC position control if Kv amplification too high. - Check NC set point Excessive harmonic vibrations on the NC set point: * reduce harmonic vibrations or * increase set point smoothing and new optimization of position control (smaller Kv amplification) - Check position analysis * position encoder defective? * mechanical slack beween position encoder and motor? - Exchange motor |