Operation 47
Procedure 9 - Starting up the rectifier ( continued )
Step | Action |
Adjusting the float voltage
14Ensure that the EQL / FLT switch is on the FLT position.
15To adjust the float voltage to the proper level, turn the FLT potentiometer clockwise to increase the voltage or counterclockwise to decrease it.
Adjusting the equalize voltage ( EQL )
16Set the EQL / FLT switch to EQL. Turn the EQL potentiometer clockwise to increase the voltage or counterclockwise to decrease it.
17Put the FLOAT / EQL switch in the FLOAT position.
Adjusting the slope share
18Select the slope share mode by setting the two bottom DIP switches to SLS ( see Figure 10 ). Verify that the rectifier displays the required float value. If required, adjust it with the FLT potentiometer.
19Connect the sense leads by inserting the RC fuse in the controller or by reconnecting the control cable.
20Put the dc breaker located on the front of the rectifier to ON.
21The rectifier is now connected to the system and should carry some current. If it is connected in parallel with other rectifiers, verify that the total system current is shared equally amongst the rectifiers. Put the switch on each rectifier to AMP. Find the mean current of the rectifiers by adding all the currents measured on each rectifier and dividing the total current by the number of rectifiers
IT = I1 + 12 +I3 … + In
n n
Set the current from each rectifier to this mean value. If the current reading of one of the rectifiers is too low, or is 0, slowly increase the current by turning the FLT potentiometer clockwise until proper sharing is achieved. If the current reading is too high or if rectifier is in the current limit mode, turn the FLT potentiometer counterclockwise.
Note : Adjust all the rectifiers in sequence to the mean value of the currents, and readjust more precisely if necessary.
Verifying the current limit
22
Turn OFF some of the other rectifiers to force the rectifier under test to pick up a load current of at least 210 A. When the rectifier reaches about 205 A, the yellow CL LED should light up.
continued
Emerson Energy Systems | Rectifier 200I/48 NT5C05C Installation and User Manual |
