Camco iD4 TDA302USERGBE - Manual (Page 17)

USER MANUAL
i - S E R I E S
i - S E R I E S
A D V A N C E D A M P L I F I E R S
P.17
4 OPERA
TION
4.5.5 Fuse Protection
When driving the iD4 at very high output levels over a longer period of time
(i.e. several seconds and minutes) the average mains current draw can
become very high. In such situations, the FuseProtect limiter will reduce
the output signal in order to prevent the external mains breaker from trip-
ping. But this limiter in turn will not affect the output signal on dynamic
music signal and short current peaks, thus guaranteeing the full available
peak output power.
Please note that the FuseProtect limiter only controls the average mains
input current, not the short term peak input current. This means that with
very dynamic music signals the (short term) input current can still reach
very high levels, which can be very demanding for a mains distribution.
If active, the operation of the FuseProtect limiter can be seen by short
orange or red glowing of the Signal-LED’s.
4.6 Main SMPS Protections
4.6.1 Over Current Protection
Main SMPS (Switched Mode Power Supply) transformer current is continu-
ously monitored. If over current occurs, the main SMPS immediately stops
working. Should there be an internal failure, this feature prevents other
parts being damaged.
4.7 Fans
The fans mounted in the iD4 operate permanently, but as long as the tem-
perature remains below 40 °C they run at their slowest speed and can
hardly be heard. The highest detected temperature from either channel
controls the speed of the fans: above 40 °C the speed is increased until it
reaches its maximum value.