Danfoss VLT Safety Option MCB 150 Installation Manual

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Table 32: Overview of Errors 177–252Errornum-berDescription LED indicatorsLED1 LED2 LED4Internal failure Reason Action Green constant177 Ext Fail DI1: ReactionSS1aSee 113 See 113 Red constant. Status depends onsafety function stateassigned to DI2.Red flashing, cycle(on 500 ms, off500 ms)178 Ext Fail DI2: ReactionSS1aSee 114 See 114 Status depends onSafety function stateassigned to DI1.Red constant. Red flashing, cycle(on 500 ms, off500 ms)179 Ext Fail Prec ThreshTimer Elapsed: Reac-tion SS1aSee 115 See 115 Status of LED 1 and LED2 depends on safetyfunction state assigned to DI1 and DI2.Red flashing, cycle(on 500 ms, off500 ms)180 Ext Fail SF activationSpeed Suspension: Re-action SS1aSee 116 See 116 Red flashing, cycle(on 500 ms, off500 ms)198 Int fail speed limitSLSa: Reaction SS1bSee 70 See 70 Red constant199 Int fail speed limitSLSb: Reaction SS1bSee 70 See 70 Red constant241 Ext Fail DI1: ReactionSS1bSee 113 See 113 Red constant. Status depends onsafety function stateassigned to DI2.Red flashing, cycle(on 500 ms, off500 ms)242 Ext Fail DI2: ReactionSS1bSee 114 See 114 Status depends onSafety function stateassigned to DI1.Red constant. Red flashing, cycle(on 500 ms, off500 ms)243 Ext Fail Prec ThreshTimer Elapsed: Reac-tion SS1bSee 115 See 115 Red flashing, cycle(on 500 ms, off500 ms)244 Ext Fail SF activationSpeed Suspension: Re-action SS1bSee 116 See 116 Red flashing, cycle(on 500 ms, off500 ms)252 Internal failure safetyoptionPower cy-cle thedrive. Ifthe prob-lem per-sists, con-tact Dan-foss.8.2.1 Safety Option WarningA warning message notifies that an issue exists on the safety option. It is not handled as an internal or external failure. These messagesare defined to indicate that a manual user action is required.Warnings and AlarmsInstallation Guide | VLT® Safety Option MCB 150/151AQ279747441421en-000101 / 130R0292 | 89Danfoss A/S © 2018.09