Installation and Operation Guide SOLECTRIA PVI 25TL-480-R
DOCR-071030-A (11/17/2020)
Page 47 of 101
The shield continuity should be maintained for the entire length of the daisy chain and should only be connected
to ground (GND) at the DAS. The shield should not be connected to any of the inverters to prevent any possible
grounding loops.
It is important to terminate the Modbus (RS-485) daisy chain correctly to minimize any bus noise and reflections.
The daisy chain should be terminated at the source (the DAS) and at the last Modbus device in the daisy chain.
Non-serial, such as star or ring, network topologies should always be avoided.
3.7
Resealing the Wiring Box
Replace Cover
3.7.1
Put the cover back on the Wire-Box. Use a #3 Phillips-head torque driver to tighten the cover screws to 4 Nm (35.4 in-
lbs).
4.
Startup
4.1
Startup Checklist
WARNING
Follow the Checklist:
For your safety, please follow the guidelines below during the startup of your inverters.
App Download
4.1.1
Download the “Yaskawa Connect Pro” App in the Apple or Google Play Store. This app provides the human-
machine interface (HMI) into the PVI 25TL-480-R inverter and is supported on iOS 9.0+ and Android 4.1+.
Mechanical Installation
4.1.2
Ensure that the mounting bracket is secure and all the screws have been tightened to the specified torque
values. (Please refer to Section 3.2.)
Confirm all knockouts are sealed and conduits are securely attached to the inverter creating a water-tight seal.
Confirm that all conduit entries into the inverter have been sealed with duct sealant to prevent condensation
from entering into the Wire-Box.
Electrical Connections
4.1.3
Make sure all conductors are landed on the correct terminals and properly labeled.
Ensure that no sharp edges from cable ties exist. Appropriate cable management is the key to avoiding physical
damage.
Make sure all connections are tightened to torque specifications as per Section
Error! Reference source not
found.
and Section 3.5.
Make sure the DC Switch on the inverter is in the “OFF” position.
Make sure the AC Switch on the inverter is in the “OFF” position.
Electrical Check
4.1.4
Make sure the AC circuit breaker is properly sized.
Test the AC voltage and confirm that it is within the normal operating range.