Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 - Manual (Page 249)

Chapter 8
Start–Up
8-5
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 8.E – 8.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 8.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 8.B
Field AC Voltage Measurements
Horsepower
1 – 30
2 – 60
40 – 100
75 – 200
125 – 300
250 – 600
Drive Voltage Field AC Input Measurement
230
460
230
460
230
460
TB1 – 1 to 2
TB1 – 1 to 2
TB1 – 1 to 5
TB1 – 1 to 5
TB8 – 1 to 3
TB8 – 1 to 3
•
Single phase control voltage must be measured as shown in Table
8.C. The voltage should be 115VAC +/– 10%.
If not, correct the incoming control voltage so it falls within the
tolerance range.
Table 8.C
115VAC Voltage Measurements
Horsepower
1 – 30
2 – 60
40 – 100
75 – 200
125 – 300
250 – 600
Drive Voltage 115VAC Measurement Points
230VAC
460VAC
230VAC
460VAC
230VAC
460VAC
TB2 – 2 to 3
TB2 – 2 to 3
TB2 – 4 to 5
TB2 – 4 to 5
TB5 – 4 to 5
TB5 – 4 to 5
Important: Refer to Chapter 1, “Publication References” for manuals
describing larger horsepower and current ratings at other line
voltages.