Replacing Line Fuses; Maintenance Request And Fault Message - Siemens FIDAMAT 6 Operating Instructions Manual

9.6

Replacing line fuses

Note
The device is protected against various influences (e.g. supply voltage, heating) with multiple
fuses. Even if only one line fuse is defective, always replace both line fuses.
Procedure
1. Disconnect the device from the power supply.
2. Open the fuse drawer at the power socket of the device and remove it.
3. Check the fuses for damage.
4. In case of damage, replace both fuses with fuses having the required technical
specifications.
5. Insert the fuse drawer again.
To replace the thermal fuse, proceed as follows:
1. Disconnect the device from the power supply.
2. Remove the housing cover.
3. Withdraw the three cables from the housing of the thermal cut-out.
The housing is mounted on the front panel to the right of the two pressure regulators.
4. Loosen the retaining nuts of the housing.
5. Remove the housing.
6. Open the oven.
7. Release the fixing clamp and remove the sensor of the thermal cut-out.
To install the new thermal fuse, carry out the same steps in the opposite order.
9.7

Maintenance request and fault message

The FIDAMAT 6 is able to detect functional irregularities. These appear as "Maintenance
request" or "Fault" in the status line of the measured-value display. At the same time, they
are recorded in the logbook and can be called up there. You acknowledge the message by
pressing the softkey next to the corresponding logbook entry. If you do not eliminate the
causes, the messages will appear again.
When a new message appears, the record stored in the logbook is shifted back one place in
the memory. There is a total of 32 memory location available. If all 32 memory locations are
already occupied when another record arrives (No. 33), the oldest one (No. 1) is overwritten.
Logbook entries that must be acknowledged are marked with a "Q" under the number in the
No. column of the following lists.
You can lock the logbook or even clear the messages in it with function 60. This can be
especially helpful during test operation.
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
Service and maintenance
9.6 Replacing line fuses
137