7.9.2 Procedure
1. Release the controller from any production working.
2. Plug the memory stick into the MTS USB socket and wait until the
memory stick is ready to use.
3. Reboot the console:
a) Choose [
Menu
].
b) Choose
[Utilities
].
c) Choose [
Exit
].
d) Restart and let the upgrade self-install.
4. Remove the memory stick and return the controller back to production
working.
7.10 Fuses and Overcurrent Protection
WARNING -
HIGH VOLTAGE
The shrouded terminals on the Euro back board are live, unless the power
supply is switched to OFF.
CAUTION
The fuse detection circuit requires a continuous low level current through a
high impedance bleed resistor to maintain the alarm condition.
As a result the load circuit is still connected to the mains voltage supply and
it is not safe to attempt to repair or replace the fuse without first isolating the
circuit.
CAUTION
There is a miniature circuit breaker that offers general overcurrent protection
for the complete unit.
7.10.1 Replacement Fuses
If any fuse has ruptured, it must be replaced with a new fuse that has
identical characteristics. See Table 7-3, Table 7-4 and Table 7-5 for the
correct fuse types.
7.10.2 Supplementary Fuses
All the supplementary circuits (console supply, power supply, fans) are
protected by a pair of fuses which are fed from the upper and lower supply
busbars.
These are DIN-rail mounted and can be found inside the left side cover
(viewed from the front) of an M1-48 and under the cover at the top on an M1-
12.
Table 7-3 Supplementary Fuses
Fuse
20mm Anti-surge
Rating
10 A
7-11
MAINTENANCE
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M1 Plus Controller User Manual
