Mackie RCF RX 3000 Instructions D'emploi page 120

Example 2: semi-automatic exchange from a NORMAL unit to a BACKUP unit
A.C.U. configuration:
a) A.C.U. 1 of NORMAL type configured as AUTO.
b) A.C.U. 2 of BACKUP type configured as MANUAL.
The following screen appears on the CP 3100 control unit display:
ACU TYPE
1 NORMAL
2 BACKUP
Operations to be carried out:
1) Create an alarm on A.C.U. 1 (e.g. OVL alarm). A.C.U. 1 is automatically disactivated; OFF appears in the INSERT field (unit disactivated
automatically), while FAULT appears in the STATUS field.
2) To insert the backup, a MANUAL OPERATION must be carried out on A.C.U. 2: in the INSERT field of this unit, select the ON option; the
item WORKING appears in the related STATUS field.
The following screen then appears on the CP 3100 control unit display:
ACU TYPE
1 NORMAL
2 BACKUP
NOTE
• Once the alarm on A.C.U. 1 has terminated, to re-activate this unit you must proceed manually using the INSERT command; if A.C.U. 1 is
re-activated but the fault or malfunction of the respective amplifier persists, after a few seconds the unit returns to FAULT status and acti-
vation OFF.
Example 3: automatic exchange from a NORMAL unit to a BACKUP unit
A.C.U. configuration:
a) A.C.U. 1 of NORMAL type configured as AUTO.
b) A.C.U. 2 of BACKUP type configured as AUTO.
The following screen appears on the display of the CP 3100 control unit:
ACU TYPE
1 NORMAL
2 BACKUP
Operations to be carried out:
1) Create an alarm on A.C.U. 1 (e.g. OVL alarm); A.C.U. 1 is automatically disactivated, and OFF appears in the respective INSERT field (unit
automatically disactivated), while FAULT appears in the STATUS field.
2) A.C.U. 2 (backup) is automatically activated in place of A.C.U. 1: ON appears in the INSERT field and WORKING appears in the STATUS
field of the backup unit.
The following screen then appears on the CP 3100 control unit display:
ACU TYPE
1 NORMAL
2 BACKUP
NOTES
• If the cause of the alarm diminishes, to return to the initial situation, with A.C.U. 1 activated and A.C.U. 2 disactivated, you have to put the
units back in the original condition manually using the INSERT command, or reconfigure the system using one of the methods described in
the section STORING A CONFIGURATION.
• Manual activation of an A.C.U. can be useful when, for example, several backup units configured in AUTO mode are automatically switched
to FAULT status due to a line overload, for example, which is then eliminated by the user.
GROUP STATUS
01 WORKING
01 NOT INS.
GROUP STATUS
01 FAULT
01 WORKING
GROUP STATUS
01 WORKING
01 NOT INS.
GROUP STATUS
01 FAULT
01 WORKING
INSERT
ONM
OFFM
INSERT
OFFM
ONM
INSERT
ONM
OFFM
INSERT
OFFM
ONM
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