Woodward MicroNet TMR 5009, Installation/Hardware Manual

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5009 Installation/Hardware Manual 85580V2
74 Woodward
6. Remove the module by pulling straight out and place it into a conductive
plastic bag (Woodward P/N 4951-041).
7. Install the replacement CPU by aligning the circuit board edge in the card
guides and push the module into the slots until the connector on the module
and the connector on the motherboard make contact.
8. With even pressure exerted at the top and bottom of the module’s front
panel, firmly push the module into place.
9. Tighten the two screws that secure the module in place (one at the top and
one at the bottom).
10. Switch the CPU’s Reset switch to its normal position (push bottom of switch
in).
Analog and Discrete I/O Modules
Each I/O Module has a red Fault LED controlled by the CPU, that is turned on
when the system is reset. During initialization of an I/O module, which occurs
after every CPU reset, the CPU turns the Fault LEDs on. The CPU then tests
each I/O module using diagnostic routines built into software. If the diagnostic
test is not passed, the LED remains on. If the test is successful, the LED goes
off. If the Fault LED on a module is illuminated after the diagnostics and
initialization have been run, the module may be faulty or in the wrong slot.
If during normal control operation all Kernel I/O modules have their Fault LEDs
on, check the Kernel CPU for a failure. If during normal control operation, only
one module’s Fault LED is turned on or flashing, replace this module. A flashing
LED indicates that a certain module failure has occurred, and is used by factory
technicians to locate module faults. When a module fault is detected, its outputs
are disabled or de-energized.
Each Analog I/O Module has a fuse on it. This fuse is visible and can be changed
through the bottom of the plastic cover of the module. If this fuse is blown,
replace it with a fuse of the same type and size (24 Vdc/.1 A).
To Replace an Analog or Discrete I/O module:
1. Read all warnings on pages v and vi of this Volume before replacing any
module.
2. If the control is running and on-line, use the system engineering workstation
to verify that the other CPUs are running without faults.
3. Unscrew the module’s captive-screw fasteners, and release the module from
the motherboard connectors by pressing the top handle up and the bottom
handle down. At this point the module should be unseated from the
motherboard connector, but still within the control rack.
4. Disconnect both module I/O cables. The I/O cables use a slide latch (to
disengage slide the latch up). To eliminate the possibility of causing a system
trip when replacing a module always un-seat the module before
disconnecting the I/O cables. (A system trip is possible if a number of the
cable connector pins are shorted to chassis ground.)
5. Remove the module by pulling straight out and place it into conductive plastic
bag (Woodward P/N 4951-041).