OPERATING PROCEDURES
REMOVING ATM OR BMM MODULES DURING OPERATION
I-E96-506B1 4 - 3
REMOVING ATM OR BMM MODULES DURING OPERATION
While the power system is in operation, do not remove the AC
transfer module (IEPEP03 Power Entry Panel only) without first
verifying that line one is operational. Removing the ATM mod-
ule causes the system to transfer to line one. If the ATM mod-
ule transfers from line one to line two because of a problem,
the whole system will go down when the ATM module is
removed. Before removing the ATM module, line one must be
operational. Additionally, removal of the ATM module takes the
bus monitor module off-line because it receives its power from
the ATM module.
To avoid unintentional triggering of the PFI signal when han-
dling the bus monitor module or the AC transfer module, insert
or remove the bus monitor module only when the AC transfer
module is in its designated slot.
RECOMMENDED START-UP PROCEDURES
Follow the procedures in Steps 1 through 9 before applying
power to the system.
1. Verify that all connections are secure.
2. Insure that all input power bus bar receptacles are covered
with insulated receptacles.
3. Install the power modules only (refer to Section 3 for
details).
4. Turn power on.
5. Measure the bus voltages at the test jacks of the bus moni-
tor module (+5, +15 and -15 VDC are with respect to DC com-
mon; +24 is VDC with respect to I/O COM). Table 4-3 shows
the maximum and minimum unloaded DC bus voltage levels
required to begin installing modules.
6. When the bus voltages are at acceptable levels, start adding
process control modules.
7. Continue adding process control modules until the system
cabinet is filled.
8. Verify that the system voltages are within specification.
Refer to Table 1-4 for system specifications.
9. Put a blank faceplate (Bailey part number 6636586_1) over
any unused PMU slots. If your MMU card cages have any
unused slots, place the cap (Bailey part number 6638748_1)
on the backplane by snapping in the top then the bottom.
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