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Before applying power
• Verify that no conductive material is present on the printed
circuit board.
• Verify that the AC supply is properly balanced.
Drive startup and shutdown
1. Set the reference signal or speed adjust potentiometer to
minimum speed.
2. Apply AC line voltage.
3. Slowly turn the speed adjust potentiometer or increase the
reference voltage until the desired speed is reached.
Warning
Dangerous voltages exist on the drive when it is powered.
BE ALERT. High voltages can cause serious or fatal
injury.
Operation
250-0089r3_readers_spreads.qxd 7/3/01 10:48 AM Page 14