Troubleshooting: Control Operations from Communication Network

@writer: (confirmed 12/11/24) topic shared in Masterpact MTZ1 User Guide (DOCA0100), Masterpact MTZ2/3 User Guide (DOCA0101), and in the appendix in Masterpact MTZ End-user and Manufacturer Maintenance Procedures (DOCA0103 and DOCA0104). Any changes made will be made in all these guides.

Definition

Control operations include commands to open and close the device from the communication network.

For information about control operations from the communication network, refer to the following guides in Related Documents at the beginning of this guide:

DOCA0105•• MasterPacT MTZ Circuit Breakers with MicroLogic X Control Units - Modbus Communication - User Guide
DOCA0162•• MasterPacT MTZ Circuit Breakers with MicroLogic X Control Units - IEC 61850 Communication Guide

Device Cannot be Controlled with a Remote Controller Connected from IFE, EIFE, or IFM Interface

Problem description	Symptom	Probable causes	Solutions
Device cannot be opened or closed.	–	The device control mode is set to Manual.	Change the control mode to Auto.
	–	The device control mode is set to Auto Local.	Change the control mode to Auto Remote.
	–	The remote control commands are disabled by the locking pad on the front of the IFE interface.	Move the locking pad on the front of the IFE interface to the Unlocked position.
	–	The EIFE interface is locked by EcoStruxure Power Commission software.	In EcoStruxure Power Commission software, in the Configure > Communication menu, change the value of the Remote Padlock Position parameter from Locked to Unlocked.
	The opening or closing command is returned with Modbus error code 01.	The password in the opening or closing is incorrect or the user has insufficient access rights.	Send the opening or closing command with a valid password. In the case of insufficient access rights, check the password validity with the system administrator. If the password is lost, refer to DOCA0105•• MasterPacT MTZ Circuit Breakers with MicroLogic X Control Units - Modbus Communication - User Guide in Related Documents at the beginning of this guide.
Device cannot be closed.	–	The close command is inhibited by the IO module.	Enable the close command by using a selector switch wired on a digital input of the IO module (I=1).
Device cannot be closed.	–	The close command is inhibited by a command from the communication network or EcoStruxure Power Commission software.	Use the Set Close Breaker Inhibition command to enable the close order.

Inhibit Closing by IO Module is Not Operational

Problem description	Probable cause	Solution
Device can be closed while selector switch wired on a digital input of the IO module is set to Inhibit (I4=0).	The MicroLogic X setting Breaker closing by digital input is disabled.	In EcoStruxure Power Commission software, in the General menu, in Breaker Closing Inhibition, change the value of the Allow control by a digital input parameter to Enable.

Additional Checks

If the troubleshooting actions described above do not work, the problem might be in the mechanical or electrical operations of the device. Refer to the troubleshooting information for Mechanical Control Operations and Electrical Control Operations.