12 Start-Up / Scheduled Maintenance / Part Replacement; Start-Up; Preventive Maintenance; Table 11.2 Fault Alarms - Toshiba 4200FA Installation And Operation Manual

Audible Alarm
Visible Alarm
Relay Contact
Low Battery Relay
Alarm
Auto-Retransfer
Memory error
Protection Item
(EE2RAER)
MAIN EEPROM to ROM
LCD Message
Loading Error
Cause Display board chip error
Operation Mode
Start is inhibited
after Fault
Audible Alarm
Visible Alarm
Relay Contact
Alarm
Auto-Retransfer

12 Start-up / Scheduled Maintenance / Part Replacement

12.1

Start-up

The startup of the UPS equipment is broken up into several steps:
1. Initial Condition: This is where the service technician checks the unit for physical damage and
verifies the installation of the UPS (electrically).
2. Static Checks: This step verifies the proper settings within the UPS logic.
3. Wiring Check: The wiring (power cables) between Utility, Load, and Other external components
and the UPS.
4. Wiring Check: The wiring to (power cables) and from (control wires) the battery cabinet.
5. Main Voltage Check: The input voltages are checked to verify they are within the range.
6. Energizing the UPS: This step begins the internal self-checks within the processor logic.
7. Output Voltage Check: The output voltages are checked to verify they are within range.
8. EPO (Emergency Power Off): The EPO is operated to verify its operation in case of an
emergency.
9. Load Testing: Performed if load is available.
10. Generator Testing: Performed if Generator is available.
11. Internal/External Maintenance Bypass: This verifies the proper operation of the Maintenance
Bypass.
12.2

Preventive Maintenance

The 4200FA Uninterruptible Power Systems have been designed to provide years of trouble-free
operation requiring a minimum of preventive maintenance.
4200FA Installation and Operation Manual
Yes: See Audible Alarm Functions
NO NO
Bypass Relay closed
closed
No

Table 11.2 Fault Alarms

Internal overheat
(DOH)
Device Overheat
Fan failure; high ambient
Red Fault LED illuminated
Fault relay closed; bypass relay closed
NO
Yes, if bypass ok
DC circuit
overvoltage (DCOV)
DC OVERVOLTAGE
Chopper malfunction
Bypass operation; chopper and inverter are stopped
Yes; continuous buzzer
NO
DC circuit
overcurrent (DCOC)
DC OVERCURRENT
Inverter / chopper fault
95