Single Phase Soft Starter
7.10 Single Phase Soft Starter
There are times a single phase motor may need to be started using a soft starter. This can be accomplished with any 3 phase starter with
the following modifications to the starter.
• Connect Line power to terminals L1 and L3.
• Remove gate leads from J8 and J9 and tie off so the leads will not touch anything
• Remove gate leads from J6 and reinstall to J8, from J7 and reinstall to J9
• Change Input Phase Sensitivity, (P77/FUN 04) to “SPH” Single Phase.
• Connect motor to terminals T1 and T3.
164
7 - THEORY OF OPERATION
START
Starters
stop
reset
enter
menu
MX2 CARD
BIPC-300055-01
Figure 44: Power Schematic for RB2 Integral Bypass Power Stack for Single Phase Operation
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