Troubleshooting: Control Operations from FDM121 Display

@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 FDM121 display.

For information about control operations from the FDM121 display, refer to DOCA0088•• Enerlin'X FDM121 - Front Display Module for One Circuit Breaker - User Guide in Related Documents at the beginning of this guide.

Device Cannot be Controlled from the FDM121 Display

Problem description	Symptom	Probable causes	Solutions
The FDM121 display does not display any data when connected to the MicroLogic X control unit.	The FDM121 display screen blinks continuously, indicating a conflict in the IMU.	The FDM121 firmware version is not compatible with the MicroLogic X control unit.	Remove the MasterPacT device from the IMU in which the FDM121 display is installed. Update the FDM121 firmware to the last firmware version, 004.000.009 or later, by using EcoStruxure Power Commission software. Connect the MasterPacT device in the IMU again. For more information about updating the firmware, see DOCA0150•• Enerlin'X FDM121 - Front Display Module for One Circuit Breaker - Firmware Release Notes in Related Documents at the beginning of this guide.
Device cannot be opened or closed.	–	The device control mode is set to Manual.	Change the control mode to Auto.
Device cannot be opened or closed.	–	The device control mode is set to Auto Remote.	Change the control mode to Auto Local.
Device cannot be closed.	–	The close command is inhibited by the IO module.	Enable the close command by using the 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.	In EcoStruxure Power Commission software, in the Device Check-up > Devices menu, change the value of the Remote Close Breaker Inhibited parameter from Enabled by communication to Disabled.

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.