Mitsubishi Electric 9800A Owner Technical Manual page 20

MITSUBISHI
ELECTRIC
Description of Figures 1.4, 1.5, and 1.6:
1. CPM - Circuit protector for control power supply.
2. Grounding bar (G)
3. External contact signal terminal block (FIGURE 1.6) - Terminal block to connect
contact signal input/output lines to and from the external devices. Refer to Figure 2.15
section 2.4 for details.
4. RS232C communication connector (FIGURE 1.6) - Refer to Figure 2.18 section 2.5 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 +12%,-12% 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 +12%,-12% 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).
MITSUBISHI ELECTRIC 9800A SERIES UPS
9800A SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-14