STARTUP
Turn on the power supply and allow the voltage to
stabilize at 27 volts before closing the circuit to the
battery.
MEASURING BATTERY VOLTAGE AND
CHARGING CURRENT
Measure the battery voltage at terminals 3 and 4 of
terminal block J2.
To measure the battery charging current, connect a
digital voltmeter to terminals 1 and 2 of terminal block
J2. See Figure VII-5. The voltmeter will read 1 millivolt
(0.001 volt) for each 2 amperes of current.
Current in Amperes = Meter reading in millivolts x 2
Example: A reading of 50 millivolts indicates a charging
current of 100 amperes.
95-8470
VII-3
1
4
C
B
AC BREAKER
DC BREAKER
H
N
G
–
+
24 VDC
OUTPUT
POWER SUPPLY MONITOR
12
11
10
9
8
7
6
5
4
3
2
1
POWER SUPPLY
–
+
12 VDC
–
+
12 VDC
NRTL CABINET
BATTERY
CIRCUIT
BREAKER
–
+
–
–
–
–
+
+
+
+
POWER DIST CKT #1
POWER DIST CKT #2
POWER DIST CKT #3
POWER DIST CKT #4
NOTES
1. AC INPUT SELECTABLE (THROUGH THE OIS)
FOR 120 / 208 / 240 VAC.
2. BATTERY SIZE CALCULATED BASED ON
SYSTEM LOAD.
3. CIRCUIT BREAKER RATINGS MUST BE BETWEEN
150% AND 250% OF FULL LOAD RATING.
4. REMOVAL OF TERMINAL PLUG WITH POWER
APPLIED TO TERMINALS B AND C WILL DAMAGE
THE POWER SUPPLY MONITOR.
C1951
AC MONITOR
BACKUP BATTERIES
Figure VII-4—A Typical Application — Wiring Connections for a Power Supply Monitor, Power Supply and Backup Batteries
A1952
1
2
3
4
CURRENT SENSE
+
BATTERY
+
CURRENT SENSE
–
BATTERY
–
Figure VII-5—J2: Current Test Points
Содержание Eagle Quantum 95-8470-05
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Страница 122: ...Figure B1 B 6...
Страница 125: ...APPENDIX D D 1 95 8470...
Страница 128: ...LON is a registered trademark of Echelon Corporation Modbus is a registered trademark of Modicon Inc...