Eaton IQ 200, Инструкция по установке, эксплуатации и обслуживанию

Страница: 49 / 55

Page 42
TD 17558
Effective 3/98
5.2.1 General Safety Precautions
•
Turn off, lock out, and tag all sources of system power to the IQ 200 Base
Module.
•
Temporarily install a short circuit between the output legs of each current
transformer connected to the IQ 200 Base Module, and tag.
•
Turn off, lock out, and tag the IQ 200 Base Module power supply circuit.
5.2.2 IQ 200 Display Module
Perform the following steps to replace the IQ 200 Display Module.
•
Disconnect the Category 5 cable from the IQ 200 Display Module, and mark it for
later reconnecting.
•
If the IQ 200 Base Module is attached to the IQ 200 Display Module, remove it by
disengaging its DIN clip from the DIN rail mounted on the IQ 200 Display Module.
•
Remove the thumbscrew from each of the 4 retainers on the sides of the IQ 200
Display Module.
•
Slide out 3 of the 4 retainers.
•
Grasp the IQ 200 Display Module to prevent it from falling, and remove the last
retainer.
•
Withdraw the IQ 200 Display Module and gasket (if in use).
•
To reinstall or to replace the IQ 200 Display Module, reverse the above steps.
5.2.3 IQ 200 Base Module
Perform the following steps to replace the IQ 200 Base Module.
•
Disconnect the Category 5 cable from the IQ 200 Base Module, and mark it for
later reconnecting.
•
Disconnect the INCOM

cable, if used, and mark it for later reconnecting.
•
Disconnect all system voltage and current leads, and mark them for reconnect-
ing. Making a simple sketch of the connections may be helpful during
reinstallation.
•
Remove the ground connection and mark it for reconnecting.
•
If the IQ 200 Base Module is attached to the IQ 200 Display Module, remove it by
disengaging its DIN clip from the DIN rail mounted on the IQ 200 Display Module.
•
If the IQ 200 Base Module is mounted using a DIN rail/DIN clip, remove it b y
disengaging the DIN clip mounted on the IQ 200 Base Module from the DIN rail
on the mounting surface.
•
If the IQ 200 Base Module is mounted using an L-bracket or other device,
remove any attachments between the IQ 200 Base Module and the mounting
device. Identify and retain all attachments for reinstallation.
•
To reinstall the IQ 200 Base Module, reverse the above steps.