Aetechron LVC5050RLY Manuale del proprietario
LVC5050RLY
Supplement
Table of Contents
Pre-Installation................................................... 2
Safety Conventions............................................ 2
General Description........................................... 3
Installation ......................................................... 4
Operation ........................................................... 5
Specifications..................................................... 6
Pre-Installation
This LVC5050RLY Supplement describes safety conventions used
within this document and provides essential information about the
Model LVC 5050RLY amplifier. Review this material before
installing or operating the amplifier.
AE TECHRON is committed to continuous product improvement.
Technical progress may result in minor variations between this manual
and a particular unit. Any significant changes or customizations will
be reflected in revisions of this manual. Customers are encouraged to
promptly add any additional information about their particular unit to
this manual.
Safety Conventions
The LVC 5050RLY amplifier is a highly sophisticated instrument.
Special hazard alert instructions appear throughout this Supplement
and the accompanying Quick Start Guide. Note the following
examples:
Page 2
NOTE: A Note represents information
which needs special emphasis, but does
not represent a hazard.
General Description
The AE TECHRON Model LVC 5050RLY is a special version of the
LVC5050. The LVC5050RLY is a single-channel power supply
amplifier designed for use in high power Simulation and Protection
Relay test systems. It can deliver short-term power of up to 98 amps
peak per channel into 1-ohm or lower impedance loads. It
accomplishes this with extremely low harmonic and intermodulation
distortion and low noise.
The features of the LVC5050RLY are the same as the standard
LVC5050 amplifier with the following exceptions:
Output Block–Loads connect to a high-current output block. Its
connectors use high-current binding posts.
Output Block Cover–No detachable cover is provided for the
LVC5050RLY output block.
See page 4 of the LVC5050 Quick Start Guide for full amplifier
features summary.
In addition, the following recommended settings apply to the
LVC5050RLY amplifier:
Output Mode Switch–Parallel-Mono is the recommended setting
for this switch.
Gain Switch–Gain of 20 is the recommended setting for this
switch.
Page 3
Installation
Please refer to pages 16-24 of the LVC5050 Quick Start Guide for full
installation instructions.
Parallel-Mono Hookup
The LVC5050 RLY amplifier is set at the factory to the Parallel-Mono
mode. This mode of operation is intended for driving loads with a total
impedance of less than 4 ohms.
Should the amplifier be accidentally changed out of this mode, below
are the instructions to allow for the LVC5050RLY to be returned to
that condition.
To activate Parallel-Mono mode:
1. Turn off the amplifier
2. Wait at least 10 seconds
3. Slide the Dual/Mono switch to the left (as you face the back
panel).
4. Connect the input signal to channel 1, and do not use the
channel 2 input
Both outputs will now receive the signal from the channel 1 input.
NOTE: The channel 2 input and level control are
disconnected in Parallel-Mono mode. A signal-feeding
channel 2 will have no effect on the output.
Channel 2’s Green LED will be bright—this is normal.
NOTE: Remember to remove the jumper between the
positive output terminals before changing to Bridge-Mono
or Dual modes—Amplifier damage may result.
Page 4
Operation
Please refer to pages 8-15 of the LVC5050 Quick Start Guide for
detailed information on the LVC5050RLY front- and back-panel
functions.
Output Connectors
The LVC5050RLY back-panel features a high-current output block, as
shown below. Connections are made via high-current binding posts.
Page 5
Specifications
Specifications are for units driving into an 8-ohm loads, (26 dB = 20
times voltage gain) and operating from 120 VAC, unless otherwise
specified.
“Standard 1 kHz Power" refers to maximum average power in watts at
1 kHz with 0.1% THD.
“Full Bandwidth Power" refers to maximum average power in watts
from 20 Hz to 20 kHz with 0.1% THD.
Performance
Input to Output Phase Delay: 0.4 at 60 Hz
Amplifier to Amplifier Phase Error: <0.1 at 60Hz
Signal to Noise Ratio: At gain of 20, better than 105 dB (A-
weighted) below full output.
Total Harmonic Distortion (THD): <0.05% from 20 Hz to 1
kHz, increasing linearly to 0.1% at 10 kHz at full output.
Residual Noise (20Hz to 1kHz): <0.8mAmp.
Load Impedance: Rated for use into 2 ohms or less. Safe
with all types of loads, even reactive ones.
Required AC Mains: 60 Hz, 120VAC with 30A service.
Convertible to 100/ 200/208/230/240VAC at 50/60 Hz.
Maximum Current: 70Arms / 98A peak
Maximum Voltage: 120Vrms no load
Page 6
Controls
Front Panel: A push “On/Off” power switch; also, a signal
level control for each channel. The level controls are wired to
the PIP card and may be enabled or disabled.
Back Panel: A 3-position switch selects Dual, Bridge-Mono,
or Parallel-Mono mode.
NOTE: The LVC5050RLY should only be operated in
Parallel-Mono mode.
Internal: Switches behind the front grill allow selection of
normal VZ operation, lock to low voltage only, lock to high
voltage only, and lock to low voltage under ODEP conditions.
Indicators
Amber Enable Indicator shows on/off status of low-voltage
power supply.
A Green OVERLOAD indicator for each channel flashes
dim green to show a signal is present at the input, and flashes
brightly in the rare event distortion of any kind exceeds
0.05%, including input overload.
A bi-color (Green/Red) ILOAD/ILIMIT indicator for each
channel flashes green with the output signal (when under a
current load) and flashes red in the event of current limiting.
Input/Output
Input Impedance: Greater than 10 K ohms, balanced, and 5
K ohms, unbalanced.
Output Impedance: Less than 510 milliohms is series with
less than 2 microhenries.
Page 7
Connectors
Inputs: Euro-style screw terminals will accept up to 16 gauge
bare wire.
Outputs: Unique output bus with high current binding post.
AC Line: “TT" style, 3 wire, 30A grounded connector (for
120 VAC units).
Construction
Black splatter-coat steel chassis with specially designed flow-
through front to rear ventilation system with computer-
controlled forced air-cooling.
Dimensions: 19 inch (48.3 cm) wide, 5.25 inch (13.3 cm)
high, 16 inch (40.3 cm) deep behind front mounting surface,
and 2.875 inches (7.3 cm) in front of the mounting surface.
NOTE: Allow 4 inches in back for adequate airflow.
Weight: 77 lbs. (35.2 kg) net, 88 lbs. (40.2 kg) shipping
weight.
Mounting: Standard EIA 310 front-panel rack mount with
supports for supplemental rear corner mounting.
Page 8
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