Masterpact MTZ1 Commissioning
Masterpact MTZ Devices Overview
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Failure to follow these instructions will result in death or serious injury.
This chapter details the testing and commissioning procedure for Masterpact MTZ devices that must be done before the device can be accepted as fit for service and connected to a power supply.
The commissioning procedure must be done by an authorized commissioning engineer with appropriate training and experience:
Only qualified electrical personnel with training and experience on low voltage circuits must perform the work described in this chapter.
Personnel must understand the hazards involved in working with or near low-voltage equipment. Such work must be performed only after reading the complete set of instructions.
Some inspections or procedures require that certain parts of the electrical system remain energized at hazardous voltage during the procedure. Observe all safety messages (Danger, Warning, Caution) throughout this chapter and the corresponding instruction notices.
Wear personal protective equipment, recognize potential hazards, and take adequate safety precautions when performing the procedures outlined in this chapter and the corresponding instruction notices.
The commissioning procedure assumes that the following conditions are met at the start of the procedure:
The device is not connected to a power system or a control system.
A drawout device is in the disconnected position.
The device is not connected to a communication network.
The results of all observations, tests, adjustments, together with any relevant comments must be recorded on the appropriate form, if applicable.
Wherever possible, testing must be done without disconnecting or disturbing existing wiring.
Masterpact MTZ Devices Scope
The commissioning procedure applies to the Masterpact MTZ intelligent modular unit (IMU), made up of:
Masterpact MTZ circuit breaker
Micrologic X control unit
Optional ULP modules:
One IFE, EIFE or IFM Modbus SL (RTU)
One or two IO modules
The associated information, which must be read with this procedure, includes specific schematic diagrams, connections, and trip levels for the devices covered by this document.
Masterpact MTZ Devices Equipment
The following equipment is required to do the tests detailed in the commissioning procedure:
Insulation resistance tester
A PC equipped with updated Ecoreach software
A USB to mini USB cable (LV850067SP) to connect the PC to the Micrologic X control unit
Masterpact MTZ1 Devices Test Form
A test form (see Masterpact MTZ1 Test Form) is available to guide you through the commissioning procedure and to record the results of the commissioning tests. Each test is described in detail in the Commissioning chapter.
Do only the tests required, depending on the Masterpact MTZ device type and the functions in use.