MITSUBISHI ELECTRIC 9700 Series - Manual (Page 15)

MITSUBISHI
ELECTRIC 9700 SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-8
MITSUBISHI ELECTRIC 9700 SERIES UPS
Description of Figure 1.4:
1. AC Input circuit breaker (CB1) Circuit breaker for converter input power .
2. Control Power circuit breaker(CB101)
3. External contact signal terminal block Terminal block to connect contact signal input/output
lines to and from the external devices. Refer to FIGURE 2.4 for details.
4. Grounding bar (E)
5. Emergency bypass switch. This switch activates bypass power supply for emergency
reasons if the UPS is turned off. Normal position is “TRANSFER is PERFORMED”
6. Switches on the DPAU-54(PCB) (FOR SERVICE PERSONNEL ONLY)
Normally the customers do not have to operate those switches.
- SW4 (Load on Bypass switch) (9)
- SW3 (Maintenance Set button) (10)
- SW5 (TEST Switch): Normal = “Off” side. ()
- SW6 (Error RESET) (11)
7. "Error reset" switch This switch resets errors resulting from alarm conditions.
(Do not operate this switch while inverter and converter are in operation.)
8. RS232C connector (CN45)
9. Bypass manual change-over button (FOR SERVICE PERSONNEL ONLY)
This switch is used to transfer the UPS from inverter to static bypass for maintenance
purposes. Do not operate it under normal operation. Transfers will be lock-out if the bypass
voltage is more than +10%,-10% of nominal.
1) Uninterrupted switching is made at the time of synchronous operation. Switching is
impossible at the time of asynchronous operation.
2) Return to
“Normal” after use.
10. Maintenance (Set) button This switch sets the UPS menu parameters.
11. "Test mode" switch This switch should be operated by Authorized Service Personnel only.