List Of Error Conditions - Danfoss MCB 152 Operating Instructions Manual

Maintenance, Diagnostics an...

9.3.1 List of Error Conditions

Error
No. Description Reason
72 Internal error: -
Processor
error.
Reaction:
STO.
73 Internal error:
Safe output
switch 1.
Reaction:
STO.
74 Internal error:
Safe output
switch 2.
Reaction:
STO.
•
75 Internal error: Safety input
DI2 in PUST. connected to
Reaction: DI2 has illegal
STO. signal level.
•
Sensor is
broken
•
76 Internal error: Safety input
DI1 in PUST. connected to
Reaction: DI1 has illegal
STO. signal level.
•
Sensor is
broken
MG37F102
Operating Instructions
LED Indications
Action
Perform 1 of the following
actions:
•
Power cycle the frequency
converter.
•
Restart the safety option
using parameter
42-90 Restart Safe Option.
•
If the problem persists,
contact Danfoss.
•
Check that configuration
of DI2 42-21 Type
parameter is set correctly
depends on safety function state
or that the connected
sensor is installed
according to specification.
•
Extend discrepancy time
on the safe input using
the MCT 10 Set-up
Software Safe plug-in.
•
Check that the configu-
ration of DI1 (42-21 Type
sub index [0]) is set
correctly, or the connected
sensor is installed
according to specification.
•
Extend discrepancy time
on the safe input using
the MCT 10 Set-up
Software Safe plug-in.
Danfoss A/S © 10/2014 All rights reserved.
LED1 LED 2
If safe fieldbus
is enabled, the
status of LED3
depends on the
Otherwise LED3
Status of LED 1 and LED2
assigned to DI1 and DI2.
LED 3 LED4
Red
constant
safe fieldbus
status.
is off.
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