Field current configuration, Set dip switch s14 to the correct value – Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 60
60
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
Chapter 1
Installation and Wiring
Field Current Configuration
DIP switch S14 on the drive’s control circuit board is factory set to the minimum
field current rating based on the drive size (see DIP Switch and Jumper Settings
on page
for S14 location). The configuration of this switch must be changed
to be greater than or equal to the rated field current specified on the motor
nameplate (unless a permanent magnet motor is being used) or possible motor
damage may result. In addition, the value selected with switch S14 must be
entered in parameter
[Drv Fld Brdg Cur] in the control software when the
drive is commissioned (see Drive Start Up on page
Set DIP Switch S14 to the Correct Value
Complete the following steps to set switch S14 to the correct field current value.
1.
Locate and record the frame size and field supply amp rating listed on the
drive data nameplate (see Drive Nameplate Data on page
for location).
2.
Locate and record the rated field current value listed on the motor data
nameplate.
3.
For frame A, B, and C drives:
•
Use
on page
to set switch S14 to be the equivalent or next
higher value as compared to the motor’s rated field current.
For frame D drives:
•
Use
to set switch S14 to be the
equivalent or next higher value as compared to motor’s rated field
current.
Figure 34 - Example DIP Switch S14 Configuration
Note
: The configuration of switch S14 is not required if the motor’s field control
is provided via an external source (for example, a permanent magnet motor),
however, it is recommended that the switch settings be completed as described
above.
ATTENTION: DIP switch S14 must be set to a value that is greater than or equal
to the rated field current specified on the motor nameplate or possible motor
damage may result.
1
ON
2
3
4
5
6
7
8
DIP
Note: This illustration is an example configuration
for a drive with a field supply amp rating of 20 A
and a motor with a rated field current less than or
equal to 17 A.