Ulvac C30VR Series User Manual (English)

Questions and Answers:

J
James AguilarAug 16, 2025
Why is the RUN indicator ON but the Ulvac Compressor refrigerator not running?
- H
  Harold LawsonAug 16, 2025
  The refrigerator may not be running due to several reasons: * Faulty or improperly connected remote input-output cables. If the commands from the equipment side are correct, examine the remote input-output cables and their connections. * Too many impurities in the helium gas. Please refer to the cryopump manual for guidance. * The power-supply voltage is too low. Ensure the power-supply voltage is within the correct range. * A relay fault inside the Controller or a fault such as refrigerator cable disconnection. Consider replacing the refrigerator cable.
T
Timothy PearsonAug 19, 2025
What to do if the PWR indicator on the Ulvac C30VR Compressor does not light up?
- B
  Brian BlanchardAug 19, 2025
  If the “PWR” indicator is not lighting up, it could be due to a few reasons. First, the input power voltage might be lower than the rated voltage, or there could be an open phase (S-T). Check the power supply and correct it. Second, there might be a power failure or CP1 malfunction. Turn CP1 ON; if it trips again, it may indicate a need for servicing. Finally, the power supply (DC24V) inside the controller might have failed.
J
jerry61Aug 22, 2025
What to do if the PWR and/or STS indicator blinks on the Ulvac C30VR Compressor?
- E
  Elizabeth BowersAug 22, 2025
  If the “PWR” and/or “STS” indicator is blinking, it may be due to input power voltage reduction, an open phase, or equipment failure. Check the input power cable, breaker, and power supply at the equipment side.
G
Gregory WeaverAug 26, 2025
What to do if the RDY indicator lights OFF and the Ulvac C30VR Compressor stopped running?
- L
  Lori LeeAug 26, 2025
  The RDY indicator light turning off and the compressor stopping indicates that the interlock has been activated.
J
joshua61Aug 28, 2025
What to do if operation command is sent but Ulvac compressor pump does not start up?
- D
  donnamoralesAug 28, 2025
  The compressor pump might not start if there is a compressor motor fault or disconnection of motor wiring.
S
Steven VegaAug 31, 2025
Why RDY indicator is ON but remote operation cannot be performed on Ulvac Compressor?
- M
  Miss Angela EdwardsAug 31, 2025
  If the “RDY” indicator is ON, but remote operation cannot be performed, the remote input-output cable might not be connected, or the connection of the output signal from the equipment might be incorrect. Correct the pin number of the output signal from the equipment and connect the remote input-output cables properly.
V
vegajohnSep 3, 2025
What to do if both RDY and STS indicators do not light up on the Ulvac C30VR Compressor?
- D
  Dr. Jesse WoodsSep 3, 2025
  If both “RDY” and “STS” indicators do not light up, it indicates abnormal behavior of the compressor caused by power failure or other reasons. Push the “RST” button.
K
Kim LeeSep 6, 2025
Why RDY indicator is OFF on Ulvac C30VR?
- J
  Jacqueline FowlerSep 6, 2025
  The “RDY” indicator might be OFF because the requirements to start operation are not met, or there is a failure.
J
Jonathan EatonSep 9, 2025
Why Ulvac C30VR Compressor does not start operation after a short electric power interruption?
- J
  jonathan57Sep 9, 2025
  The compressor might not restart after a short power interruption because the “Alternate operating mode” does not have a restart function for short power interruptions. “Momentary operating mode” enables the compressor to restart if the electric power recovers within 2 seconds after interruption. Also, it can be that the electric power interruption is longer than set time (2 seconds), so the compressor needs restart.
S
Sarah McphersonSep 12, 2025
Why is the Elapsed Time Meter display dark on the Ulvac C30VR Compressor when power is OFF?
- W
  wallershaneSep 12, 2025
  The Elapsed Time Meter display is dark because the battery for the Elapsed Time Meter is low. The battery life is more than 6 years. Replace the Elapsed Time Meter.

Ulvac C30VR Series Specifications

General

Brand	Ulvac
Model	C30VR Series
Category	Compressor
Language	English

Ulvac C30VR Series User Manual

Table of Contents

Questions and Answers:

Ulvac C30VR Series Specifications