BOLT-12 POINT HEAD 2200771 - Caterpillar

Illustration 1 g02361044
Control Panel (1) Rectifier/charger light (2) Battery light (3) Static-bypass light (4) Inverter light (5) Load light (6) Buzzer (7) Inverter ON button (8) Inverter OFF button (9) Scroll Up/Increment key (10) Scroll Down/Decrement key (11) Validate key (12) Main Menu key (13) Voltage Measurement key (14) Current Measurement key (15) Frequence and Power Measurement key (16) Anomaly light (17) Primary Message Key (18) Battery Key (19) Forced-transfer (20) Alarm reset (21) Buzzer reset (22) Display
Illustration 2 g02345901
Circuit Breaker DiagramThe fuses are to protect against catastrophic rectifier and inverter semiconductor failure that could be caused by the normal AC source or the load.Normal AC input (30) - Three-phase 480 VAC 60 Hz line voltage. Utilized in Normal operation to support the load.Bypass AC input (31) - Three-phase 480VAC 60Hz line voltage utilized in Bypass or Maintenance operations to support the load.Q1 (32) - Isolates the rectifier/charger (A) from the normal AC source (30). Q1 is a molded circuit breaker.Rectifier/charger module (A) - Converts three-phase AC power from the normal AC source supply (30) into DC power for the normal inverter (B) input. This module float charges or recharges the battery (D) .Inverter module (B) - Converts the DC power supplied by the rectifier/charger module (A) or the battery unit (D) into three-phase AC power for the load.Q5N (33) - Q5N is a switch that can isolate the UPS system from the load.QF1 (34) - QF1 is a circuit breaker for battery (D) protection and isolation.Battery unit (D) - The battery unit provides backup power for the inverter (B) in the event of a voltage drop or a normal AC input (20) failure.Static bypass module (C) - Ensures the instantaneous transfer of the load to the bypass AC source input (31) in the event of an inverter (B) shutdown. The shutdown can be initiated by the user, by a protective device, or a sudden load.Q4S (36) - Q4S is a switch that isolates the static bypass (C) from the bypass AC source input (31) .Q3BP (35) - Q3BP is a switch to isolate the UPS for maintenance. During maintenance the Q3BP transfers the load to the bypass AC source input (31) without interrupting the supply of power.Note: The normal AC input and the bypass AC input have different functions. Depending in the installation, each input may be protected differently upstream and/or come from different sources.Normal Mode
Normal AC source power is available. Refer to Illustrations 1 and 2.The following green lights on the control panel are ON:
(1) Rectifier/charger light
(4) Inverter light
(5) Load lightThe power necessary for the load is provided by the normal AC source (30) through the rectifier/charger (A) and the inverter (B) .The rectifier/charger (A) also supplies the power to float charge and recharge the battery if anyThe DC output voltage is regulated to supply the following conditions:
The float-charging or the recharging voltage for vented lead-acid or Ni/Cd batteries
A single charge voltage for sealed lead-acid batteriesThe voltages depend on the number of battery cells and the battery