Parker 590+ series - Pre-Operation Checks; Prepare to Energise the Drive and System

Operating the Drive 4-1
DC590+ Series DC Digital Drive
Pre-Operation Checks
Initial checks before applying power:
• Mains power supply voltage is correct.
• Auxiliary power supply voltage is correct.
• Motor is of correct armature voltage and current rating.
• Check all external wiring circuits - power, control, motor and earth connections.
NOTE Completely disconnect the drive before point-to-point checking with a buzzer, or when checking insulation with a Megger.
• Check for damage to equipment.
• Check for loose ends, clippings, drilling swarf etc. lodged in the Drive and system.
• If possible check that the motor can be turned freely, and that any cooling fans are intact and free from obstruction.
Ensure the safety of the complete system before the drive is energised:
• Ensure that rotation of the motor in either direction will not cause damage.
• Ensure that nobody else is working on another part of the system which will be affected by powering up.
• Ensure that other equipment will not be adversely affected by powering up.
Prepare to energise the drive and system as follows:
• Remove the main external HRC fuses to prevent the main 3-phase and single phase auxiliary supply from being connected.
• Disconnect the load from the motor shaft, if possible.
• If any of the Drive’s control terminals are not being used, check whether these unused terminals need to be tied high or low. Refer to Appendix E:
“Technical Specifications”- Terminal Information - Control Board.
• If there is any doubt about the integrity of a particular installation, insert a high wattage resistor, i.e. fire elements, in series with the motor
armature.
• Check external run contacts are open.
• Check external speed setpoints are all zero.