L-828 Ccr Monitoring Options; Optional Scanning Monitor Interface; Optional Scanning Monitor Ready - Siemens L-828 Manual

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz)
1. Introduction
(contd.)
2. L-828 CCR Monitoring
Options
Optional Scanning Monitor
Interface
Optional Scanning Monitor
Ready
 2002 Siemens Airfield Solutions, Incorporated
All rights reserved
The 4, 7.5, and 10 kW CCRs are designed to
•
supply either three or five precision output current levels (6.6 A
maximum) for series lighting circuits on airport runways and
taxiways.
• accurately regulate the output current to within ±3% of the
adjustable nominal level from no load to full load and with input
voltage variations of –5% to +10% of nominal (-40 °C to +55 °C.
Optional input voltages available are 208, 220, 240, and 480 Vac.
The regulators may be operated manually or by 120 Vac or +48 Vdc
remote control signals from a distant location (10,000 feet round trip
using AWG #19 control cable). The universal remote control used in
the LC-Type CCR requires no circuitry changes between 120 Vac and
+48 Vdc remote control signals. Both 120 Vac and +48 Vdc remote
control source signals (CCI) are provided.
Protective circuits automatically shut down the regulators if an
overcurrent or open-circuit occurs in the series lightning circuit. After
an input power loss, operation automatically resumes at the same
brightness level within 5 seconds after input power is restored.
Output lightning and current-surge protection is provided on all
units.
The L-828 CCR monitoring options include Scanning Monitor
Interface (SMI) and Scanning Monitor Ready (SMR).
The optional scanning monitor interface is a relay assembly that can
be mounted internally to the front panel of the CCR. The relay
assembly consists of four relays and sockets. The relay assembly is
used to generate feedback signals concerning the CCRs operation to
the Remote Multiplexer. The relay assembly generates feed back for
the following signals: Remote/local status, commanded ON status,
regulator running status, and primary power status.
The optional scanning monitor ready includes the scanning monitor
interface plus one current transformer (CT) and one potential
transformer (PT). It also has resistor loads, and a fuse in the potential
transformer secondary. Differential signals presenting the actual
series circuit voltage and current are transmitted to the scanning
monitor system two-conductor shielded cables.
96A0104B
Issued 6/02
Description
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