890CS & 890CD Common Bus Units
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
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Step 4: Checking the System
In this section we are going to apply the 24V DC Control Supply and check the I/O operation of the 890's
by applying just a 24V DC Control Supply. If everything is okay, we'll be ready to receive DC at the
890CD Common Bus Drive via the DC link from the 890CS Common Bus Supply.
Pre-Operation Checks
Before Applying 24V DC:
If you have already wired the 3-phase supply to the 890CS Common Bus Supply,
DISCONNECT IT NOW (remove the supply fuses, or trip the circuit breaker).
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 other equipment will not be adversely affected by powering up.
Prepare to power-up the unit and system:
Fit the keypads to the front of the units, or connect remotely.
