Woodward Vertex-Pro, Инструкция по установке/руководство по оборудованию

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Vertex-Pro Motor-Driven Compressor Control Manual 26489V1
82 Woodward
9.3.3—Replacing a Field Termination Module (FTM)
It is not possible to replace an FTM without shutting down the entire
control system and the prime mover.
If power has not been removed from the control system, power will
be active at the module and also at the cable connectors. It is
recommended that the cables not be removed until after the module
has been unseated. If cables are removed with power applied, care
must be used to avoid shorting cable connector pins.
HIGH VOLTAGE—If the high voltage FTM is being used with the 48/24
Discrete I/O module, and there is 125 Vdc on the FTM terminal
blocks, there will be 125 Vdc on the FTM sub D connectors and on
the cable when it is connected to the FTM. For this reason, all power
should be removed from the FTM terminal blocks before
disconnecting any cables.
1. Carefully—to avoid shorting cable pins—disconnect all I/O cables from the
FTM, and secure cable ends to avoid damage or shorting of pins. The I/O
cables use a slide latch (to disengage, slide the latch to the release
position).
2. Disconnect all field wiring. Care should be taken to avoid shorting the wires.
3. Remove the FTM by inserting a screwdriver into the mounting foot and
prying each foot away from the DIN rail. Install the replacement FTM.
4. Reconnect all field wiring. Refer to the Wiring Notes for the appropriate
module.
5. Connect all I/O cables to the FTM, being careful to avoid shorting cable
pins. Lock the connector in position by sliding the latch to the latched
position.
6. If power was removed, reapply power.
7. Put the CPU module back in run mode.
8. Verify that the new FTM is working correctly.