MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-180 - Manual (Page 58)

Model 505.60 - 505.180 SilentFlo™ HPU 58
Testing Model 505.60 HPU Operation
Installation
4. Press the Reset button to clear any active interlock conditions.
For interlocks that do not clear, determine and correct the cause and then
press Reset.
5. Press the Pump #1 Enabled button to enable the first pump.
Note The following step only applies when the HPU is first turned on after the
electrical power has been connected.
6. Verify the motor rotation (the pump motor can start with the wrong
rotation). Momentarily start the motor by pressing the Run/Low Pressure
button. The enabled pump will sequence on and start running in low
pressure.
• If the motor is rotating properly, the Hyd Fluid Pressure display
should read approximately 0.34 MPa (50 psi). Proceed to the next step.
• If the Hyd Fluid Pressure display shows no pressure, press the Stop
button to shut down the unit (do not run more than 10 seconds in the
wrong direction). Have a qualified electrician make a change in the
electrical phase to the HPU electrical power feed wires at the lugs
labeled L1, L2, and L3.
• If the connections were changed, repeat this step (Step 6) to confirm
that the pump is now outputting approximately 0.34 MPa (50 psi). If it
is not, contact MTS.
7. Verify the rotation of the remaining pump motors.
A. Disable the currently enabled pump and enable the next successive
pump.
B. Momentarily start the motor by pressing the Run/Low Pressure
button. The enabled pump will sequence on and start running in low
pressure.
C. If the motor is rotating properly, the pressure on the operator interface
should read approximately 0.34 MPa (50 psi), repeat this step for each
remaining pump.
D. If the operator interface shows no pressure, press the Stop button to
shut down the unit (do not run more than 10 seconds in the wrong
direction). Make a note identifying the pump. Repeat this step for each
remaining pump.
E. Have a qualified electrician compare the power feeds coming into the
individual starter boxes of the pumps that are rotating correctly with
the pumps that are rotating incorrectly. The wiring sequence should be
the same for all boxes; for example black, white, red. If necessary,
correct the connection sequence and verify pump operation. Otherwise
contact MTS.
F. Check each pump for unusual noises or leaks. If a problem is found,
press the Stop button. You must correct the problem before you
continue.
8. Verify the correct output pressure.