Sharp SH-920 Instruction Manual page 23

The procedures for checking the electrical connection.
6.
For safety reason, remove the grinding wheel from spindle.
6.1
Fix power source lead wire to the terminal board R.S.T
6.2
Press push button "SB1" for power source "on"
6.3
Press push button "SA1" for spindle "on" the spindle must be rotated in
6.4
clockwise direction, if not, please change any 2 wires on R.S.T terminals.
Press push button "SA2" for pump motor "on", it must be rotated in
6.5
clockwise direction, if not, please change any 2 wires on U2, V2, W2
terminals.
Turn the selector switch"SA31" to left, and turn the switch "SA3" to the left,
6.6
the saddle must be moved forward to the operator; if not, please change
any 2 wires on U3, V3, W3 terminals.
In case the machine wiring voltage is different from that of power source.
Change the terminal on transformer Tr1, Tr2 to coordinate the machine
6.7
wiring voltage with the power source voltage.
Change wire connection of the following motors: spindle motor, pump
6.8
motor, coolant motor.
Cross feed motor is of constant voltage 220V, so needn't to change its
6.9
wiring connection.
6.10 After changing the connections of the above mentioned transformer and
motors, it requires to test the directions of rotation of all motors following
the same procedure as in 6.1 to 6.6.
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