Danfoss VLT Safety Option MCB 150, Operating Instructions Manual

Page: 70 / 76

Error
No. Description
Led Indications
LED1 LED 2 LED4
179 Ext Fail Prec
Thresh Timer
Elapsed
:Reaction SS1a
See 115 See 115
Status of LED 1 and LED2 depends on safety
function state assigned to DI1 and DI2
Red flashing,
cycle (on 500
ms, off 500
ms)
180 Ext Fail SF
activation
Speed
Suspension:
Reaction SS1a
See 116 See 116 Red flashing,
cycle (on 500
ms, off 500
ms)
198 Int fail speed
limit
SLSa :Reaction
SS1b
See 70 See 70 Red constant
199 Int fail speed
limit
SLSb :Reaction
SS1b
See 70 See 70 Red constant
241 Ext Fail
DI1 :Reaction
SS1b
See 113 See 113 Red constant Status depends on
safety function state
assigned to DI2 Red flashing,
cycle (on 500
ms, off 500
ms)
242 Ext Fail
DI2 :Reaction
SS1b
See 114 See 114 Status depends on
Safety function state
assigned to DI1 Red constant Red flashing,
cycle (on 500
ms, off 500
ms)
243 Ext Fail Prec
Thresh Timer
Elapsed
:Reaction SS1b
See 115 See 115
Status of LED 1 and LED2 depends on Safety
function state assigned to DI1 and DI2
Red flashing,
cycle (on 500
ms, off 500
ms)
244 Ext Fail SF
activation
Speed
Suspension
:Reaction SS1b
See 116 See 116 Red flashing,
cycle (on 500
ms, off 500
ms)
252 Internal failure
safety option
Power cycle the
frequency converter. If
the problem persists,
contact Danfoss
8.2.1 Safety Option Warning
Safety option warning messages
A warning message notifies that an issue exists on the
safety option. It is not handled as an internal or external
failure. These messages are defined to indicate that a
manual user action is required.
NOTICE
At any possible failure or warning indicated from the
safety option, the LCP displays Warning ‘!Safe Option
Failure [W252]’ at the least.
8.2.2 Safety Option Reset Message
Requests for safety option RESET
For some messages, the safety option requires an acknowl-
edgement of an ongoing action or failure on the safety
option.
The safety option uses 'Safe Option RESET' as a ‘Restart
and Failure Acknowledgement‘
Warnings and Alarms Operating Instructions
68 Danfoss A/S © Rev. 2014-02-11 All rights reserved. MG34W302
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