Drive and Safety module Mismatch (7A.4).This error may also signify a rotation direction mismatch setting.You may see this error if you have parameters PSA18 and PSA19 configured incorrectly (Pr.Motor direction or parameter combination errors (7A.3).If the motor and the drive were changed, you may see a 7A.3 as well as a 7A.4.

When power is re-applied, you will see an error (or errors) on the drive that was swapped. Once the physical swap has been completed, review the wiring connections and then remove any lock-out-tag-out (LOTO) devices following your company’s procedures. Carefully check and be sure all the connections have been made and the MR-D30 module has been successfully mounted to the side of the servo drive. Once the drive has been removed, go through the proper mounting procedures for mounting the new/replacement drive. Be sure any purchased cables will cross over to the replacement drive as well. If the connections are different, refer to any schematics for the system/machine for the proper connection points. At this point, if you are using a similar drive, you will just be able to re-use the connectors and reconnect them to the same locations on the new drive. Once removed, you will then disconnect any other cables and connectors and remove the drive. After a safe amount of time and be sure the machine is locked out and tagged, continue to remove the MR-D30 safety module from the side of the servo drive to be replaced. Be sure to follow manual guidelines if necessary.

The first step would be to power down the system and wait the typical 15-30 seconds before attempting to disconnect any wires. The assumption is also being made that the safety parameter file is already set up and has been verified to work previously on either this module or another in a matching process. Note that these instructions are specifically for changing a J4 Servo Drive in the instance of a failure, or if a change in system design is made that affects the motor size specifications. In today's article I'll walk you through how to change out a Mitsubishi J4 Drive which an MR-D30 Safety Module Attached.

Gx works 2 parameter