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MITSUBISHI ELECTRIC 2033D SERIES UPS
MITSUBISHI
ELECTRIC
2033D SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-10
Description of Figures 1.4, 1.5, and 1.6:
1. External I/F Board (IOAU-05) : FOR SERVICE PERSONNEL ONLY (FIGURE 1.6):
- (3) External contact signal terminal
- (4) RS232C communication connector
2. Grounding Bar (E)
3. External Contact Signal Terminal Block - Terminal block to connect contact signal
input/output lines to and from the external devices. Refer to Figure 2.15 section 2.5 for
details.
4. RS232C Communication Connector - Refer to Figure 2.18 section 2.6 for details.
5. “INVERTER” START Switch - This switch is used to transfer the UPS from static bypass
to inverter during maintenance purposes. Transfers will lock-out if the bypass voltage is
more than +10%,-10% of nominal.
* Uninterrupted switching is made at the time of synchronous operation. Switching is impossible at
the time of asynchronous operation.
6. “INVERTER STOP” Switch - This switch is used to transfer the UPS from inverter to static
bypass during maintenance purposes. Do not operate it under normal operation. Transfers
will lock-out if the bypass voltage is more than +10%,-10% of nominal.
* Uninterrupted switching is made at the time of synchronous operation. Switching is impossible at
the time of asynchronous operation.
7. “FAULT RESET” Switch (FOR SERVICE PERSONNEL ONLY) - This switch resets
errors resulting from alarm conditions. (Do not operate this switch while inverter and
converter are in operation.)
8. Maintenance (Set) Button (FOR SERVICE PERSONNEL ONLY) - This switch sets the
UPS menu parameters.
9. “Test mode” Switch (FOR SERVICE PERSONNEL ONLY) - This switch changes system
operation to the test-mode. (This switch should not be operated by personnel other than
an Authorized Service Engineer).
10. “BOOT” Switch (FOR SERVICE PERSONNEL ONLY) - This switch boots the processor
in the main control circuit resulting from alarm conditions. (Do not operate this switch
while inverter and converter are in operation).