Emerson SAG581126000 - Manual (Page 100)

SAG581126000 System Application Guide
Issue AD, November 23, 2009 Spec. No. 581126000 (Model 700 NVBA )
Page 100 of 123
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Note: Wiring options are provided to lockout changing Power System
adjustment/configuration/ calibration settings locally and/or remotely.
In addition, the Ethernet Interface Option provides a Web-Browser Interface. The following
software options are also available.
SNMP Interface: Provides an Ethernet port for MCA connection into a TCP/IP network and
support for SNMP V2 (Simple Network Management Protocol). Communications to and from
the MCA is accomplished via a MIB (Management Information Browser). SNMP Traps are
provided for alarms listed on the MCA Menu Tree under the "Alarms Menu".
Battery Monitoring: Provides Battery Monitoring via the Web Browser Interface.
1.3.2 Remote On/Off (TR): The operation of any or all Rectifier Modules (PCUs) can be inhibited
(TR) via the WinLink option, the Ethernet option, or from the MCA front panel accessed interface
pad.
1.3.3 MCA Local Display: Provides digital metering of system load voltage and current, individual
Rectifier Module (PCU) current, subsystem load voltage and current (if subsystem installed), and
load current of subsystem, system, and/or battery shunts. Also displays system alarm
messages and adjustment information, as detailed in Section 1.3.10 "MCA Display".
The MCA contains a "Power Down" mode. The MCA turns off its display and PCU
communications to conserve power when system voltage falls below 20 volts. Full operation is
restored when system voltage recovers to 23.5 volts. The display and communications can be
temporarily reactivated by the user.
1.3.4 MCA Meter Accuracy: ±0.01 V, ±0.005% / °C
1.3.5 MCA Universal Adjustment Circuit: Provides single point control of float output voltage,
test/equalize output voltage, high voltage shutdown, and current limit adjustments.
Note: If the MCA should fail, the Rectifier Modules remember the float and high voltage
shutdown settings last delivered by the MCA. The current limit setting of each Rectifier
Module goes to 100% of full load rating.
Provides adjustments for all MCA alarm and control circuits. Adjustment ranges and factory
settings as follows.
All adjustments can be performed locally via the MCA front panel accessed interface pad, and
most can be performed remotely via the WinLink option or the Ethernet (Web-Browser Interface)
option.
(A) Rectifier Module Output Voltage:
(1) Without Battery Charge Temperature Compensation: Float voltage is adjustable
from 23.50 to 28.50 volts DC. Test/equalize voltage is adjustable from 23.00 to 28.50
volts DC. The output voltage temperature coefficient does not exceed 0.01% per
degree centigrade from -40°C to +65°C. Factory set as follows unless otherwise
specified.
Power System List No. 10 11 12 13
MCA Configuration No. 534876 534877 534878 534879
Factory Setting (Volts) 27.24 27.00 27.24 27.24
(2) With Battery Charge Digital Temperature Compensation Probe or TXM (multiple
probe concentrator module): With an optional battery charge digital temperature
compensation probe or TXM installed, the MCA automatically increases or decreases
the output voltage as battery ambient temperature decreases or increases, respectively.
The float and test/equalize voltage range is the same as without battery charge digital
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