890CS & 890CD Common Bus Units   
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D  Page 4-47 
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Pre-Operation Checks 
Before Applying Power: 
♦  Read the Safety section at the front of the Manual. 
♦  Ensure that all local electric codes are met. 
♦  Check for damage to equipment. 
♦  Check for loose ends, clippings, drilling swarf etc. lodged in the drive and system. 
♦  Check all external wiring circuits of the system - power, control, motor and earth connections. 
♦  Ensure that unexpected rotation of the motor in either direction will not result in damage, bodily harm or 
injury. Disconnect the load from the motor shaft, if possible. 
♦  Check the state of the Motor Thermistor and Brake Resistor connectors. Check external run contacts are 
open. Check external speed setpoints are all at zero.  
♦  Ensure that nobody is working on another part of the system which will be affected by powering up. 
♦  Ensure that other equipment will not be adversely affected by powering up. 
♦  Check motor stator connections are correctly wired for Star or Delta as necessary for drive output 
voltage. 
♦  Ensure that the SSD_Rail has been correctly installed and securely fastened. 
♦  On the 890CS drive, set the line voltage on rotary switch S1.