Alpha Technologies INEX 100A STS Module and MBS+PDU - Manual (Page 25)

Argus Technologies Ltd. 019-061-C0 Rev A WC
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5 STS Module Installation
1. To install STS module, slide it into a pre-wired chassis until the face plate is flush with the mounting ears. In order to
prevent the STS module from being displaced, turn the lock bolt left to lock position.
2. At power on, the STS unit enters into a self-diagnostic mode. If everything is functioning correctly, the indicator will
remain solid green, and STS will detect and transfer the better quality power to the load.
3. Remove the module by pulling outward.
4. If controller module and/or interface module is not incorporated, you can cover the excess cavity with optional cover
plates. The optional cover plate comes into two pieces. After screwing the inner silver metal piece to the chassis
bottom plate, use bolts on both sides to attach the black metal cover to the inner silver piece.
Figure 11–Front view of controller/interface/STS chassis
CAUTION
When installing STS module with MBS, it is not necessary to turn off the system. Please note the
following: Put Maintenance Bypass Switch at MBP or IBP (determined by mains and inverter
output status) position as shown below; otherwise, the incorrect install or removal action will
damage the STS module frame because of the safety lock of the MBS.
Figure 12–MBS switch positions, MBP or IBP
5.1 Installation Check
Before turning the system on, review previous chapters for instructions pertaining to your particular system.
If the system fails to operate properly after turning on, recheck and verify to make sure all the connections are
correct according to the installation instructions. Operation problems are usually caused by incorrect installation or
setup.
• DC input terminals have correct voltage polarity.
• Utility input terminals have correct voltage connections.
• AC output terminals have correct voltage connections.
• Input conductor sized for correct amperes.
• Output conductor sized for correct amperes.
• Correct output voltage selected in personalization.
• Utility correct frequency selected.
Use Maintenance and Troubleshooting chapter.