Control Unit NIII_Z_1: Check Microswitches OF/SDE/PF/CH

Safety Instructions

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, NOM 029-STPS, or local equivalent. This equipment must only be installed and serviced by qualified electrical personnel. Unless specified otherwise in the maintenance procedures, all operations (inspection, test, and preventive maintenance) must be carried out with the device, the chassis, and the auxiliary circuits de-energized. Check that the device and the chassis are de-energized on the upstream and downstream terminals. Always use a properly rated voltage sensing device to confirm that the device, the chassis, and the auxiliary circuits are de-energized. Install safety barriers and display a danger sign. During the tests, it is strictly forbidden for anyone to touch the device, the chassis, or the conductors while voltage is applied. Before turning on power to this equipment, check that all connections are made with the correct tightening torque and the device is open (OFF position). Before turning on power to this equipment, put all devices, doors, and covers back in place. Before turning on power to this equipment, beware of potential hazards and carefully inspect the work area for tools and objects that may have been left inside the equipment. Failure to follow these instructions will result in death or serious injury.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, NOM 029-STPS, or local equivalent.
This equipment must only be installed and serviced by qualified electrical personnel.
Unless specified otherwise in the maintenance procedures, all operations (inspection, test, and preventive maintenance) must be carried out with the device, the chassis, and the auxiliary circuits de-energized.
Check that the device and the chassis are de-energized on the upstream and downstream terminals.
Always use a properly rated voltage sensing device to confirm that the device, the chassis, and the auxiliary circuits are de-energized.
Install safety barriers and display a danger sign.
During the tests, it is strictly forbidden for anyone to touch the device, the chassis, or the conductors while voltage is applied.
Before turning on power to this equipment, check that all connections are made with the correct tightening torque and the device is open (OFF position).
Before turning on power to this equipment, put all devices, doors, and covers back in place.
Before turning on power to this equipment, beware of potential hazards and carefully inspect the work area for tools and objects that may have been left inside the equipment.

Failure to follow these instructions will result in death or serious injury.

Procedure Definition

Procedure characteristics	Description
Action	Check that the microswitches delivering the OF/SDE/PF/CH information to the MicroLogic X control unit operate correctly.
Goal	Verify that the MicroLogic X control unit gets the device status information.
Frequency	Refer to Recommended Frequency for the Intermediate End-User Maintenance Program.
Special indications	–
Necessary tools	A PC running EcoStruxure Power Commission software A USB cable (standard to mini USB port)
Related documents	MasterPacT MTZ1 - IEC Switch-Disconnectors and Circuit Breakers with MicroLogic X Control Unit - User Guide MasterPacT MTZ2/MTZ3 - IEC Switch-Disconnectors and Circuit Breakers with MicroLogic X Control Unit - User Guide MasterPacT MTZ - MicroLogic X Control Unit - User Guide EcoStruxure Power Commission Online Help MasterPacT MTZ1 - Microswitches OF/SDE/PF/CH - Instruction Sheet MasterPacT MTZ2/MTZ3 - Microswitches OF/SDE/PF/CH - Instruction Sheet

Preliminary Conditions

The device must comply with the conditions specified below. Refer to the MasterPacT MTZ User Guides to find instructions for operating the device.

Device installation type	Position of poles	Mechanism	Device position in the chassis
Fixed	Open	Discharged	N/A
Drawout	Open	Discharged	Test

Checking the Microswitches OF/SDE/PF/CH

Check that the microswitches OF/SDE/PF/CH and the control unit are functioning correctly:

Step	Action	Corrective action
1	If the device is equipped with an MN undervoltage release, either connect it to the power supply with its rated voltage or remove the MN undervoltage release.
2	Connect a PC running EcoStruxure Power Commission software to the MicroLogic X control unit. A Cable plug connected to the mini USB port of MicroLogic X control unit B Standard to mini USB port cable C PC running EcoStruxure Power Commission software
3	Launch EcoStruxure Power Commission software.
4	Click Connect Device Directly. Result: A window displays to indicate that the device discovery is in progress. It disappears automatically when the device is discovered.
5	Click NEXT to close the Project Information window.
6	Click SAVE to close the Customer Details window and display the SWITCHBOARD VIEW.
7	Click the Connect to device button.
8	In the Device Check up section, click the Device tab.
9	If no MCH gear motor is installed in the device, charge the device by using the spring charging handle.
10	Check that Device Status data is as follows: Breaker position is Open. Trip Elec fault indicator (SDE) is Off. Spring status indication is Breaker charged. Ready to close is Ready to close.	If a status of the device is not correct: Remove the microswitches (refer to MasterPacT MTZ - Microswitches OF/SDE/PF/CH - Instruction Sheet). Check that the actuators correctly operate: with an ohmmeter, check the contact status. Reinstall the microswitches. Do the procedure again. If the problem persists, replace the microswitches.
11	Manually close the device.
12	Check that Device Status data is as follows: Breaker position is Close. Trip Elec fault indicator (SDE) is Off. Spring status indication is Breaker charged (if MCH gear motor is installed) or Breaker discharged (if there is no MCH gear motor). Ready to close is Not ready to close.	If a status of the device is not correct, see corrective action in step 9.
13	In the Device tab, click the Force Trip button to trip the device.
14	Read carefully the safety message that displays then click I understand.
15	You are prompted to provide the password: Type the Administrator password of the MicroLogic X control unit. Click OK.
16	In the Force Trip Result Table window, click Cancel.
17	Check that Device Status data is as follows: Breaker position is Open. Trip Elec fault indicator (SDE) is Trip. Spring status indication is Breaker charged (if MCH gear motor is installed) or Breaker discharged (if there is no MCH gear motor). Ready to close is Not ready to close.	If a status of the device is not correct, see corrective action in step 9.
18	Reset the device by pressing the blue button.
19	If no MCH gear motor is installed in the device, charge the device by using the spring charging handle.
20	Check that Device Status data is as follows: Breaker position is Open. Trip Elec fault indicator (SDE) is Off. Spring status indication is Breaker charged. Ready to close is Ready to close.	If a status of the device is not correct, see corrective action in step 9.
21	Exit EcoStruxure Power Commission software.