PULLEY-ALTERNATOR 4N8225 - Caterpillar

Remote Emergency Power Off Button
Illustration 1 g00741799
Remote Emergency Power Off ButtonThe Remote Emergency Power Off (REPO) button is used to initiate an Emergency Shutdown of the system. An Emergency Shutdown of the system will disconnect the power to the load of the UPS.
Table 1
Switch Specifications    
Description    Value    
Wire in conduit     18 AWG (minimum)    
Maximum distance from UPS    
152 m (500 ft)    
Normally open contacts
Green     Pins 3 and 4    
Normally closed contacts
Red     Pins 1 and 2    Configuration of the Normally Open Contact
In order to use the normally open contacts in the EPO switch, run wires from pin 3 and pin 4 in the EPO switch to the Remote Input Block that is located on the System I/O Module.Note: If the normally closed remote switch is not used, the normally closed pair of contacts must be jumpered for normal operation.Configuration of the Normally Closed Contact
In order to use the normally closed contacts in the EPO switch, remove the jumper wire and run wires from pin 1 and pin 2 in the EPO switch to the Remote Input Block that is located on the System I/O Module.Note: The System I/O Module is located on the Left Component panel in the lower left-hand corner. See the Systems Operations, "Interfaces" manual.Static Bypass Switch
This option ensures that there is no break in the transition from normal operation to bypass operation in the event of a catastrophic internal failure or UPS overload. Silicon Controlled Rectifiers (SCR) are used to connect the bypass source instantly to the output. Thus, the output contactor is commanded to open and the bypass contactor is commanded to close. This results in a make-before-break switch operation.Note: The bypass contactor is in parallel with the static switch.Maintenance Bypass
The bypass option allows complete isolation of the system in order to perform maintenance on the UPS without interruption to the load.Remote Status Panel
Illustration 2 g01242284
(1) "Bypass Unavailable" (2) "UPS Notice" (3) "On-bypass" (4) "Discharge" (5) "UPS Overload" (6) "Low DC Voltage" (7) "UPS Alarm" (8) "Off-line" (9) Lamp Test Switch (10) Horn (11) Alarm SilenceThe Remote Status Panel allows the user to monitor various functions through use of eight status lights.Specifications
Table 2
Remote Status Panel
Specifications    
Description    Value    
Input Voltage    
Input voltage to panel     15 to 45 VDC    
Power    
Power requirements     6 W maximum    
Physical Dimensions    
Height    
270 mm (10.62 inch)    
Depth    
86 mm (3.37 inch)    
Width    
86 mm (3.37 inch)    
Weight    
1.14 kg (2.5 lb)    
Distance from UPS     less than
305 m (1000 ft)    
Environmental Specifications    
Horn (Output)     80 dB(A)
nominal    
Temperature range    
−40 °C (−40 °F) to
70 °C (158 °F)    
Humidity     0 to 100% relative humidity    
Emissions and Immunity     IEC 801-2
IEC 801-3
IEC 801-4
EN 5082-2
89/392/EEC Certification (EEC)    Connecting to the Remote Status Panel
The system is designed for flush mounting or surface mounting in a panel box. The system uses