Automationdirect.com Stellar SR44, User Manual

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Contents of this Chapter...
2.1 – Warnings & Agency Approvals . . . . . . . . . . . . . . . . . . 2–2
2.1.1 – Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.1.2 – Electrical Power and Control Supply Requirements . . . . . . . . . . . . . . 2–2
2.1.3 – Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.1.4 – Fuse Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.1.5 – Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.2 – Electrical Connections – Specifications . . . . . . . . . . . . 2–3
2.2.1 – Electrical Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
2.2.2 – Control, Power, and Ground Terminations . . . . . . . . . . . . . . . . . . . . 2–3
2.3 – Standard Wiring Configurations . . . . . . . . . . . . . . . . . 2–4
2.3.1 – Wiring Diagram for In-Line Connection of Motors . . . . . . . . . . . . . . 2–4
2.3.2 – Wiring Diagram for In-Delta Connection of Motors . . . . . . . . . . . . . 2–5
2.4 – Motor Control Circuits . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2.4.1 – Bypass Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2.4.2 – Multiple Motor Starting & Stopping . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.4.3 – External Motor Protection Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.4.4 – Motor Reversing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.4.6 – Wiring Diagram for Motor Reversing . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.5 – Electrical Connections – Terminal Locations . . . . . . . . 2–9
2.5.1 – General Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
2.5.2 – Electronic Control Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–11
(Table of Contents continued next page)
NOTE: SR44 soft starters have been discontinued. Please consider SR55 soft starters as a replacements.
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