7-2
FlexPak 3000 Enhanced Field Supply Installation Instructions
Important: This value is intended to give you a starting pointing for adjusting the
drive’s field output voltage. Use an external voltmeter to measure actual
field voltage in order to make an accurate adjustment of the field voltage.
Step 3. Check the drive’s field output voltage. If necessary, readjust parameter 500 to
obtain the motor’s rated field voltage.
7.3
Examples for Setting Parameters 306 and 500
A 230 VAC, 60 Hz line is connected to a FlexPak 3000 drive. The drive’s output, in
turn, is applied to a 5 HP DC motor having a nameplate field voltage of 150 volts.
Step 1. Verify that parameter 306 (NOMINAL AC LINE FREQUENCY) has the
correct value, 60 Hz in this example.
Step 2. Calculate the multiplier that determines Enhanced Field Supply board and
Regulator board jumpering. See chapter 6 for more information. Determine
the value for parameter (ENHANCED FLD VOLT ADJ). The equation for this
example is:
Step 3. Refer to table 6.1 for the calculated multiplier. In this example, the calculated
multiplier of 0.6522 falls between 0.45 and 0.9, so the correct jumpering for
the Enhanced Field Supply board and Regulator board jumper J21 is B-C.
Step 4. Determine the value for parameter 500.
a. Refer to table 7.1, which supplies the multipliers for the B-C jumper setting.
b. Find the row and column containing the multiplier closest to 0.6522.
The closest multiplier is 0.6517. It is located in row 080, column 4.
c. To find the value for parameter 500, add the column number to the row
number. In this case it is:
080 + 4 = 84
d. Access parameter 500 from the OIM’s FIELD menu and set the value to
84.
FIELD
VOLTAGE
AC INPUT VOLTAGE
MULTIPLIER
=
=
=
150
230
0 6522
.
