Specifications

MITSUBISHI
ELECTRIC
2033C SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1
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15
MITSUBISHI ELECTRIC 2033C SERIES UPS
7. Maintenance Bypass Switch (52CS/SWM) (FOR SERVICE PERSONNEL ONLY) This
switch is used to transfer the load from inverter power to external power for maintenance
purposes. Do not operate it under normal operation.
8. "Test mode" switch (FOR SERVICE PERSONNEL ONLY)
This switch changes system operation to the test-mode. This switch is mounted on
Display PCB and Main PCB. (This switch should not be operated by personnel other than
an Authorized Service Engineer).
9. External contact signal terminal block
Terminal block to connect contact signal input/output lines to and from external dry
contacts. Refer to FIGURE 2.3 for details.
10. RS232C connector (CN62)
Refer to Figure 2.6 for detail.
11. RS232C connector (CN64)
12. "BOOT" switch (FOR SERVICE PERSONNEL ONLY)
This switch boots the processor on the main control circuit board following alarm conditions.
(Do not operate this switch while inverter and converter are in operation).
13. "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).