Table 28: Overview of Errors 78–85
Error
num-
ber
Description LED indicators
LED1 LED2 LED4
Internal fail-
ure
Rea-
son
Action Green
constant
78 Internal failure
safety option
• First, power cycle
the drive or restart
the safety option via
parameter 42-90 Re-
start Safe Option.
• If the problem per-
sists, contact Dan-
foss.
Status of LED 1 and LED2 depends on safety function
state assigned to DI1 and DI2.
Red con-
stant
79 Internal failure
safety option
Contact Danfoss. Red con-
stant
80 Internal failure
safety option
Contact Danfoss. Red con-
stant
81 Internal failure
safety option
• First, power cycle
the drive.
• If the problem per-
sists, contact Dan-
foss.
Red con-
stant
82 Internal failure
safety option
• First, power cycle
the drive.
• If the problem per-
sists, contact Dan-
foss.
Red con-
stant
83 Internal failure
safety option
• First, power cycle
the drive.
• If the problem per-
sists, contact Dan-
foss.
Red con-
stant
84 Internal failure
safety option
• First, power cycle
the drive.
• If the problem per-
sists, contact Dan-
foss.
Red con-
stant
85 Internal failure
safety option
• First, power cycle
the drive.
• If the problem per-
sists, contact Dan-
foss.
Red con-
stant
Warnings and Alarms
Installation Guide | VLT® Safety Option MCB 150/151
AQ279747441421en-000101 / 130R0292 | 85
Danfoss A/S © 2018.09