Rockwell Automation 7703E Medium Voltage SMC OEM Components - 10-15 kV - Manual (Page 45)

Rockwell Automation Publication 7703E-IN001E-EN-P - July 2014 45
Final Test Procedures Chapter 7
11. When each gate driver circuit has been checked, disconnect the power
supply and remove it from the cabinet.
12. Open the switch SW2 on the interface board (see
Figure 21 ) before
returning the unit to service. Ensure the red LED is off.
13. 13.Check that all plugs and connectors are secure. Retrieve all hardware
and tools from the equipment. Replace and secure any barriers removed
during servicing and close all doors before applying power.
1. Apply rated control voltage to the control circuit.
2. Using the control schematic, apply control signals to cause relays and
contactors to energize, to verify operation.
3. Remove any jumpers used in the test and restore all circuits to normal
when finished.
ATTENTION: The gate-drive circuits operate at high voltage when the SMC is
energized. Failure to remove the portable test power supply will result in
equipment damage and may cause severe injury or death.
ATTENTION: If the SW2 switch is not in the open position when the SMC is
energized, the motor will start in an uncontrolled manner and may cause severe
damage.
ATTENTION: Servicing energized industrial control equipment can be
hazardous. Severe injury or death can result from electrical shock, burn, or
unintended actuation of controlled equipment. Recommended practice is to
disconnect and lock out control equipment from power sources, and allow any
stored energy in capacitors to dissipate. The safety related work practices of
NFPA 70E, Electrical Safety Requirements for Employee Workplaces, must be
followed if it is necessary to work in the vicinity of energized equipment.