Table 29: Overview of Errors 86–93
Error
num-
ber
Description LED indicators
LED1 LED2 LED4
Internal fail-
ure
Rea-
son
Action Green
constant
86 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Status of LED 1 and LED2 depends on safety func-
tion state assigned to DI1 and DI2.
Red con-
stant
87 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Red con-
stant
88 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Red con-
stant
89 Internal fail-
ure safety op-
tion
• Perform a general reset
of the safety option
with the Administration
button.
• If the problem persists,
contact Danfoss.
Red con-
stant
90 Internal fail-
ure safety op-
tion
• Perform a general reset
of the safety option
with the Administration
button.
• If the problem persists,
contact Danfoss.
Red con-
stant
91 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Red con-
stant
92 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Red con-
stant
93 Internal fail-
ure safety op-
tion
• First, power cycle the
drive.
• If the problem persists,
contact Danfoss.
Red con-
stant
Warnings and Alarms
Installation Guide | VLT® Safety Option MCB 150/151
AQ279747441421en-000101 / 130R0292
86 | Danfoss A/S © 2018.09