7 Service and Repair
7.1 Updates, Servicing and Modifications
NOTICE
Updates to Firmware
Contact Danfoss to get an update of the firmware.
CAUTION
Firmware Modifications
Only Danfoss is authorized to change the firmware. If
other parties make changes to the firmware, the
warranty expires. Furthermore, Danfoss cannot be held
liable for any consequences the changes may have on
the functional safety.
CAUTION
Modifications to the Unit
Only Danfoss is allowed to make hardware modifications
of the safety option. If other parties make changes to
the unit, the warranty expires. Furthermore, Danfoss
cannot be held liable for any consequences the changes
may have on the functional safety.
CAUTION
Servicing
Once a year, check that the safety option functions
properly to ensure the safety of the machine. Perform
the check by either
•
testing the function, or
•
switching off the options used in the safety
chain
7.2 Repair
WARNING
ELECTRICAL SHOCK HAZARD!
Always disconnect mains supply to the frequency
converter before removing the safety option.
Only Danfoss is authorised to make repair to the safety
option. A defect option must be shipped back to Danfoss.
7.3 Replacing
7.3.1 Removing the Safety Option
Before removing the safety option
1.
Save all parameters of the safety option, see
MCT
10 Set-up Software Operating Instructions
.
2.
Duplicate the existing device setting.
NOTICE
The frequency converter generates an error message
after removing the safety option.
How to remove the safety option
1.
Disconnect all power (power stage supply voltage
and controller supply) before plugging in or
removing the option.
2.
Verify that no voltage is present.
3.
Remove the safety option according to the
instructions in
Installation
in
VLT
®
AutomationDrive FC 301/FC 302 Operating
Instructions
.
NOTICE
If the removed safety module is installed in another
frequency converter, the frequency converter issues a
warning for safety option parameter selection. The user
can then select the safety configuration from either the
frequency converter or from the Safety Option.
7.3.2 Replacing the Safety Option
WARNING
ELECTRICAL SHOCK HAZARD!
Always disconnect mains supply to the frequency
converter before removing the safety option.
When replacing the safety option, note the following
•
If the firmware version has changed, configured
functions and stated parameters may no longer
be supported or may have been modified. Adapt
the configuration in the MCT 10 Set-up Software.
•
Download the configuration to the safety option
again
Alternatively, copy the safe parameters using a graphical
LCP, see
chapter 7.3.3 Copying Safe Parameter Set-up
.
Service and Repair
Operating Instructions
46
Danfoss A/S © Rev. 2014-02-11 All rights reserved.
MG34W302
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