Danfoss MCB 152 User Manual

9.3.1 List of Error Conditions
Error
No. Description
LED Indications
Reason Action LED1 LED 2 LED 3 LED4
72 Internal error:
Processor
error.
Reaction:
STO.
- 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.
Status of LED 1 and LED2
depends on safety function state
assigned to DI1 and DI2.
If safe fieldbus
is enabled, the
status of LED3
depends on the
safe fieldbus
status.
Otherwise LED3
is off.
Red
constant
73 Internal error:
Safe output
switch 1.
Reaction:
STO.
74 Internal error:
Safe output
switch 2.
Reaction:
STO.
75 Internal error:
DI2 in PUST.
Reaction:
STO.
•
Safety input
connected to
DI2 has illegal
signal level.
•
Sensor is
broken
•
Check that configuration
of DI2 42-21 Type
parameter is set correctly
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.
76 Internal error:
DI1 in PUST.
Reaction:
STO.
•
Safety input
connected to
DI1 has illegal
signal level.
•
Sensor is
broken
•
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.
Maintenance, Diagnostics an... Operating Instructions
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9 9

Danfoss MCB 152 Specifications

General

Brand	Danfoss
Model	MCB 152
Category	Security Sensors
Language	English