Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 170)

Chapter 6
Start–Up
6-5
Voltage Measurement
1. Before applying power to the Drive ensure that the ECOAST input to
TB3-4 and 5 is locked in the open state. The DC contactor must
remain in the open state while the following measurements are being
made.
2. Apply the main power source to the drive.
3. Record the following AC voltage measurements in Tables 6.E – 6.G.
•
Three-phase source voltages L1 to L2, L2 to L3 and L3 to L1. The
three-phase voltage should be equal to the rated drive AC
input voltage on the drive nameplate +/– 10%.
If the voltage is not within tolerance, verify that the drive rating is
correct for the application. If the drive rating is correct, change the
incoming line voltage so that it complies with the Drive rating.
•
Field AC input voltage measurements are per Table 6.B. The
voltage should be equal to the rated drive AC field voltage input on
the drive nameplate +/– 10%.
If the voltage is not within tolerance, determine whether a field
transformer is required and has been used.
Table 6.B
Field AC Voltage Measurements
Horsepower
400 – 600
700 – 1250
1000 – 2000
Drive Voltage Field AC Input Measurement
230
460
660
TB7 – 1 to 3
TB7 – 1 to 3
TB7 – 1 to 3
•
Single phase control voltage must be measured as shown in Table
6.C. The voltage should be 115VAC +/– 10%.
If not, correct the incoming control voltage so it falls within the
tolerance range.
Table 6.C
115VAC Voltage Measurements
Horsepower
400 – 600
700 – 1250
1000 – 2000
Drive Voltage 115VAC Measurement Points
230VAC
460VAC
660VAC
TB5 – 14 & 15
TB5 – 14 & 15 or 3 & 4
TB5 – 14 & 15
4. Record the following DC voltage measurements in Tables 6.E and 6.D.
If any voltage measurement is incorrect, refer to the Troubleshooting
manual for guidelines.
•
+5 +/– 0.15 VDC measured at TP 51 (+) with respect to TP 52 (–)
on the Main Control Board.
•
+12 +/– 0.48 VDC measured at TP 55 (+) with respect to TP57 (–)
on the Main Control Board.
•
–12 +/– 0.48 VDC measured at TP56 (+) with respect to TP57 (–)
on the Main Control Board.