Document No: LT0255 F3200/NDU AS4428.1 Installation Manual
System Specifications
Issue 1.04 30 June 2004 Page 3-5
BATTERY CHARGER & PSU (CONTINUED)
STATE MIN NOM MAX COMMENTS
Charger High 28.05 28.125 28.20 Adjust with pot
Charger Low 26.40 26.57 26.75
Battery Low 24.15 24.33 24.55
Standby Off 21.5 22.0 22.5 For voltage falling
Notes:
1. All voltages stated in VDC at temperature of 20°C.
2. Apply temperature compensation of -36 mV/°C for temperature deviation from 20°C.
3. This applies also to charger voltage 27.3 VDC.
4. There are thermal delays, therefore if checking or adjusting in field ensure unit has been
running for some hours.
5. Standby Relay is normally energised (on), and turns off for Battery fail.
TABLE 3.3.2
BATTERY AND CHARGER MONITORING VOLTAGE SPECIFICATIONS
3.3.3 BATTERY
Battery Voltage : 24Vdc nominal (2 x 12Vdc)
Compatible Makes Century Yuasa PS series
IRH BB Battery BP series
Panasonic LC-L, LC-R and LC-X series
YHI Power CSB GP series
Yuasa NP series
Capacity : 6 to 50 Ahr (dependent on configuration)
Space (mm) : - Standard Cabinet
Up to 220H, 440W, 175D (Iss B cabinet)
- Small Cabinet
Up to 200H, 185W, 175D (3 modules fitted)
Up to 200H, 370W, 125D (4 modules fitted)
(Refer to Fig 2.2.2)
3.3.4 FUSES
Location : MAF/PSU PCB
Number
Name Size Rating Type
F1 +VBF1 5 x 20mm 2A Glass Cartridge, Std
F2 +VBF2 5 x 20mm 6A Glass Cartridge, Std
F3 +VNBF 5 x 20mm 2A Glass Cartridge, Std
F4 +VE 5 x 20mm 2A Glass Cartridge, Std
F5 Mains In 5 x 20mm 6A Glass Cartridge, Std
F7 +VBELLS 5 x 20mm 2A Glass Cartridge, Std
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