-2-
B. LEDs Indications (at normal operation status)
1. In Stand-by mode, only the Power ON LED will lit.
2. When Direct Operation Mode is activated, the AC-OUTLET LED is lit and LEDs of
Group1 to 3 become flashing.
C. System Failure Indication
1. All the LEDs of Group and Channel are constantly lit indicates that the system is
failure, press the RESET button to restore.
2. Device failure code: LED indicator numbers == Error code.
D. The device will only work in By-Pass mode when system Error is appeared. In By-
Pass mode all the control from the front panel will be disabled and the AC power will
be delivery directly through the channels.
INSTRUCTIONS FOR PROGRAMMED CONTROL OPERATION MODE
Before Operation
1. Either one of the DEVICE-SELECT switches must be set to ON and MODE should be
set at NORMAL.
2. The Preset-number of the device which is being controlled will be display on the front
panel, Group1 to 3 LEDs will scrolling in turns to lit.
3. Beware of not to set the same Preset-number for difference devices, otherwise
malfunction would occurred.
4. RS232 Control port connected from the host PC; do not connect to the host PC if only
one device is used.
5. At least one AC power phase should be connected to the device’s 3 Phase/4 Wire
power input connector if running a test for the device.
6. Beware of the AC power Input Voltage to the device is correct to the device’s default
voltage.
7. Void to the warranty if any operation violated to the operation instruction.
Programmed Control Operation (The host control status will be provided by the
host control designer).
1. Mode Selection: (In all Mode, Group1 to 3 LEDs will scroll in turns to lit)
a. Memories Setting: The controlled device operation will not be affected.
b. Memories Control: To store the settings, same operation as of the stand alone
single device.
c. Direct Control Operation: Follow the setting from the host control, same
operation as of the stand alone single device.
d. Standby Mode: Can be set to enter into either operation mode from Standby
mode.
2. ON/OFF Control Operation
a. When changing the operation Mode all the un-saved data will be lost. All the
channels which are at power ON status will be switched to OFF. The operation
will be ended similar to the procedure for the stand alone single device.
b. Do not try to enter into Memory Setting Mode when the device does not in
Standby Mode. If it is needed to operate in constant sequence it is suggested
to use Memory Control operation instructions.
c. Accuracy of the sequence operation is less than 200ms. Suggest to operate in
Direct Control Mode.
d. When operate the device manually, it is suggested to operate the device follow
the Simple Control instructions.
Simple Operation check of the indications
1. When setting the Preset-number of the device which is being controlled only
one channel’s LED will be lit also Group1 to 3 LEDs will scrolling in turns to lit.
2. Before the host control PC connection has not been established the AC-
OUTLET indicator will not lit.
PROFESSIONAL POWER AMPLIFIER
UNiKA
POWER 4800
POW ER SEQ UEN CER