Section 2: Qhse; Operating Safety Precautions - Sensia INSTRUCT P30 INTELLIGENT VSD Installation, Operation & Maintenance Manual

P30 and S30 Low Voltage VSD

Section 2: QHSE

The following safety precautions should be followed when installing, operating, or maintaining a Sensia VSD

2.1 OPERATING SAFETY PRECAUTIONS

1. Do not power up the VSD until this entire operation manual is reviewed.
2. The input voltage must be within ±10% of the specified input voltage. Voltages outside of this
permissible tolerance range may cause internal protection devices to turn ON or can cause damage to
the unit. Also, the input frequency should be within ±5% of the specified input frequency.
3. Proper coordination of the motor and VSD is required. For surface motor applications. Consult with
Sensia when utilizing this VSD for a new application.
4. This VSD is designed to operate both PCP and SRP motors. Consult InTouch before using the VSD for
special applications such as an explosion-proof motor or one with a repetitive type of piston load.
5. Do not touch any internal part with power applied to the VSD; first remove the power supply from the
drive and wait until the DC bus is discharged. Charged capacitors can present a hazard even if source
power is removed. Use appropriate lockout/tagout procedures (refer to SENS-HSE-S027) to ensure that
the VSD power is off before proceeding with the checks and the procedures inside the drive or the
junction box.
Potential Severity: Major
Potential Loss: Assets, Personnel
Hazard Category: Electrical, Explosives
Do not operate this VSD with its cabinet door open.
6. Do not apply commercial power to the output terminals U/T1, V/T2, or W/T3 even if the VSD source
power is off. This will cause damage to components within the drive. Disconnect the VSD from the motor
before using a megger or applying bypass voltage to the motor.
7. Interface problems can occur when this drive is used in conjunction with some types of process
controllers. Signal isolation may be required to prevent controller and/or drive malfunction. Contact
Sensia or the process controller manufacturer for additional information about compatibility and signal
isolation.
8. Do not open and then reclose a secondary magnetic contactor between the drive and the load unless
the drive is OFF (output frequency has dropped to zero) and the motor is not rotating. Abrupt
reapplication of the load while the drive is on or while the motor is rotating can cause drive damage.
9. Use caution when setting output frequency. Increasing the motor speed beyond its normal capacity can
decrease its torque-developing capability and can result in damage to the motor and/or driven
equipment.
10. Use caution when setting the acceleration and deceleration time. Unnecessarily short time settings can
cause tripping of the drive and mechanical stress to loads.
11. Only qualified personnel should have access to the adjustments and operation of this equipment. They
should be familiar with the drive operating instructions and with the machinery being driven.
12. Only properly trained and qualified personnel should be allowed to service this equipment.
13. Follow all warnings and precautions. Do not exceed equipment ratings.
Section 2:QHSE
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