Front Of Mixing Power Amplifier - Panasonic WR-201E Design Handbook

PRODUCTS
4
WU-ZS001E

Front of Mixing Power Amplifier

8
6 FAULT Indicator [FAULT]
When this Surveillance Unit is installed, this indicator lights upon detection of a fault.
• Speaker system abnormality (short, grounding, disconnection)
• Power amplifier fault (voice system fault, abnormally high temperature)
Flashes when checking or acquiring reference value for speaker line.
1 second
Light
FAULT Indicator flashes 5 times every second during speaker
line check or reference impedance value setting.
Go out
Light
FAULT Indicator flashes once a second upon detection of
short circuit or open circuit.
Go out
FAULT Indicator flashes twice a second if the reference
Light
impedance value of the speaker line is not set or is faulty.
In this case, set the reference value before performing
Go out
speaker line check.
Light
FAULT Indicator lights if there is any abnormally high
temperature in Power Amplifier or any audio signal problems.
Go out
Light
FAULT Indicator does not light if there is not any abnormality.
Go out
(A) ZONE LED [ZONE1/ZONE2/ ZONE3]
ZONE LED of each zone light during reference value setting or speaker line check. And then they go out one after another in the order
of ZONE number (from ZONE 1 to ZONE 3).
(B) Fault Indicator [FAULT]
FAULT Indicator on the front of the Amplifier flashes quickly during reference value setting or speaker line check.
(C) SETTING STATUS Indicator [SETTING STATUS]
This indicator flashes amber during reference value setting and flashes green during speaker line check .
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SPECIFICATIONS
Power Rated Voltage 24 V DC (supplied internally by amplifier)
Requirements Consumption Current Approximately 100 mA
Fault Detection Line Short (When impedance is -50 % of reference impedance value)
Disconnect (When impedance is +50 % of reference impedance value)
Grounding (When ground impedance value is 50 kΩ or less)
Amplifier Audio fault (When audio that is greater than the pilot signal level cannot
be detected by the amplifier circuit.)
Abnormally high temperature (When transformer temperature is +100 ˚C
or greater)
SW Speaker line check trigger/Impedance reference value acquisition trigger
Indicator LED Impedance reference value setting/Speaker line check status indicator
Operation (amber/green)
Line short/disconnect indicator: ZONE 1-3 (red/amber)
GROUND FAULT indicator (red)
SW Line check trigger/Impedance reference value acquisition trigger
Other I/F Parallel External I/F
Input 2 (Tr input): Open circuit voltage 5 V; Short circuit current 1 mA
Output 17 (open collector output): No-voltage make contact, control
voltage 30 V max., control current 50 mV max. Connector: D-sub 25-pin
Time Adjustment Input (Tr input): Open circuit voltage 5 V; Short circuit current 1 mA
Dimensions 150 mm (W) x 18 mm (H) x 88 mm (D)
Weight (Approx.) 80 g
Ambient Temperature 0 ˚C to +40 ˚C
DIMENSIONS
PRODUCTS
WU-ZS001E
150
Unit: mm
4
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