
Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
361
Motor Control Feature Support
Appendix D
rating. The higher the TorqueProveCurrent value the more current the drive
delivers to the motor to verify that the motor phase wiring is available and
capable of that current level. High current levels conversely causes more
thermal stress and (potentially) can cause more torque to be driven against the
motor brake during the test. If the TorqueProveCurrent level selected is too
small, the drive cannot distinguish the proving current from noise, and in this
case the drive posts an INHIBIT M04 torque-proving configuration fault
code. The minimum amount of torque proving current depends on catalog
number of the drive.
Phase Loss Detection Current Example
In this example, a 2198-D020-ERS3 dual-axis inverter is paired with a
VPL-B1003T-C motor with 6.77 A rms rated current. Use the phase-loss
detection equation and table to calculate the initial minimum torque-proving
current as a percentage of motor rated current. Depending on the unique
characteristics of your application, the required torque-proving current value
can be larger than the initial recommended value.
Figure 184 - Phase-loss Detection Equation
Table 164 - Recommended Phase-loss Detection Current
Rating From Table
x 100% =
Motor Rated Current
0.5746 A
6.77 A
x 100% =
8.49%
Drive Cat. No.
Phase-loss Detection Current, min
A, rms
2198-S086-ERS
x
7.183
2198-S130-ERS
x
9.337
2198-S160-ERS
x
12.21
2198-D006-ERS
x
0.1796
2198-D012-ERS
x
0.3591
2198-D020-ERS
x
0.5746
2198-D032-ERS
x
0.9337
2198-D057-ERS
x
1.6520