Safety Option Warning - Danfoss VLT Safety Option MCB 150 Installation Manual

Installation Guide | VLT® Safety Option MCB 150/151
Table 32: Overview of Errors 177–252
Error Description
num-
ber
Internal failure
177 Ext Fail DI1: Reaction
SS1a
178 Ext Fail DI2: Reaction
SS1a
179 Ext Fail Prec Thresh
Timer Elapsed: Reac-
tion SS1a
180 Ext Fail SF activation
Speed Suspension: Re-
action SS1a
198 Int fail speed limit
SLSa: Reaction SS1b
199 Int fail speed limit
SLSb: Reaction SS1b
241 Ext Fail DI1: Reaction
SS1b
242 Ext Fail DI2: Reaction
SS1b
243 Ext Fail Prec Thresh
Timer Elapsed: Reac-
tion SS1b
244 Ext Fail SF activation
Speed Suspension: Re-
action SS1b
252 Internal failure safety
option

8.2.1 Safety Option Warning

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.
Danfoss A/S © 2018.09
LED indicators
LED1
Reason Action
See 113 See 113 Red constant.
See 114 See 114 Status depends on
Safety function state
assigned to DI1.
See 115 See 115 Status of LED 1 and LED2 depends on safety
function state assigned to DI1 and DI2.
See 116 See 116
See 70 See 70
See 70 See 70
See 113 See 113 Red constant.
See 114 See 114 Status depends on
Safety function state
assigned to DI1.
See 115 See 115
See 116 See 116
Power cy-
cle the
drive. If
the prob-
lem per-
sists, con-
tact Dan-
foss.
Warnings and Alarms
LED2 LED4
Green constant
Status depends on Red flashing, cycle
safety function state (on 500 ms, off
assigned to DI2. 500 ms)
Red constant. Red flashing, cycle
(on 500 ms, off
500 ms)
Red flashing, cycle
(on 500 ms, off
500 ms)
Red flashing, cycle
(on 500 ms, off
500 ms)
Red constant
Red constant
Status depends on Red flashing, cycle
safety function state (on 500 ms, off
assigned to DI2. 500 ms)
Red constant. Red flashing, cycle
(on 500 ms, off
500 ms)
Red flashing, cycle
(on 500 ms, off
500 ms)
Red flashing, cycle
(on 500 ms, off
500 ms)
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