MTS Series 505G2 SilentFlo Hydraulic Power Unit Model 505G2-30 - Manual (Page 45)

Operating the HPU Locally or Remotely
Model 505G2.20 - 505G2.30 SilentFlo™ HPU Operation 45
Operating the HPU Locally or Remotely
The HPU can be operated locally using the controls on the user interface panel or
remotely using your system controller.
Local operation
1. Make a general inspection of the HPU. Ensure that all cooling water valves
are open. Ensure the Emergency Stop button is released.
2. If not already displayed, press the Main button to display the Main screen.
3. Verify that the Remote Operation button is gray. If the button is green,
press the button to change it to gray (indicating local mode).
4. Press Run to start the pump. The pump starts in low pressure mode.
5. Check the HPU for leaks and unusual sounds. Stop the HPU immediately if
leaks or unusual sounds are noted. Determine the cause and fix the problem
before restarting the HPU.
6. Press High Pressure to turn on high hydraulic pressure.
Note If the HPU generates an interlock during operation (such as low fluid
level or high temperature), the HPU will stop. Once the cause has been
corrected, press the Reset button before restarting.
7. Run the HPU for about 30 minutes or until the hydraulic fluid is up to
operating temperature [typically 43–49°C (110–120°F) ] before using your
test system.
8. When in high pressure mode, press the High Pressure button to return to
low pressure mode.
9. To stop the HPU, press the Stop button.
Remote operation
Remote operation can occur at a remote control panel or from your system
controller. The controller must be connected to the HPU.
1. Make a general inspection of the HPU. Ensure that all cooling water valves
are open. Ensure the Emergency Stop button is released.
2. If not already displayed, press the Main button to display the Main screen.
3. Verify that the Remote Operation button is green. If the button is not green,
press the button to change it to green (indicating remote mode).
4. Start the HPU in low pressure at your controller.
5. Check the HPU for leaks and unusual sounds. Stop the HPU immediately if
leaks or unusual sounds are noted. Determine the cause and fix the problem
before restarting the HPU.
6. Select high pressure at your system controller.
Note If the HPU generates an interlock during operation (low fluid level or high
temperature), the HPU will be stopped. Once the cause has been
corrected, press the Reset button on the HPU user interface before
restarting.