YOKOGAWA DTSXL, User Manual, Page: 270 / 289

< PART – C Operation and Maintenance >
C-17
IM 39J06B40-01EN 14th Edition: May 30, 2022
C4.2.2. Replacing DTSXL System Modules
The following describes the procedure for replacing DTSXL System modules.

Replacing Power Supply Modules
Follow the procedure below to replace Power Supply modules.
1. Shut down the DTSX3000 and the CPU module in accordance with their respective
replacement procedures.
2. Shut off the power supply to the power supply module to be replaced.
3. Remove the power supply cable and line filter grounding cable from the terminal
block.
4. Remove the target Power Supply module from the Base module.
5. In reverse order of the above steps, install the Power Supply module, power supply
cable, and line filter grounding cable.
6. Turn on the power supply.

Replacing DTSX3000
Follow the procedure below to replace a DTSX3000.
1. If the DTSX3000 is running, stop its operation.
Shut down the DTSX3000 using its SHUTDOWN switch.
If a CPU module is installed, shut down the CPU in accordance with its
replacement procedure.
2. Turn off the power.
3. Remove the sensor optical fiber. Replace the dust protective cap of the optical
output connector after removing the cable.
4. Remove the control network cable.
5. Remove the DTSX3000 from the Base module.
To do so, loosen the securing screw located at the center of the panel first, followed
by the eight top and bottom screws and remove the DTSX3000.
Detach an optical switch module before detaching the DTSX3000.
6. Attach the new DTSX3000 to the Base module.
Tighten the securing screw located at the center of the panel, followed by the eight
top and bottom screws.
7. Connect the sensor optical fiber.
8. Connect the control network cable.
9. Turn on the power.
If a CPU module is installed, reboot the CPU module in accordance with its
replacement procedure.
IMPORTANT
- When attaching the DTSX3000 to the base module, wedge the gasket between the
DTSX3000 and the base module.
- When attaching the DTSX3000 to the base module, ensure that the SD card is
locked in place at the back of the DTSX3000.