MRS Electronic Microplex 7L 1.134 Datasheet

Description

The patented MicroPlex® is the smallest CAN control unit with the highest integration density. Based on the footprint of two Micro 280 relays and a drag-and-drop configuration tool, it enables the simple construction of custom, CAN bus-compatible power distribution systems.

Technical Data

Programming

MRS APPLICS STUDIO

The Applics Studio is MRS's proprietary development and tool platform for our modules. Program your MRS controllers easily and quickly with our standalone software. Your application is the focus.

Output Overview

Pins 2, 8, 9, 10, 11, 12

Pin 7

Performance Tests at Tmax

Test without PWM

Test with PWM

Connection Assignment Power Supply and Interfaces

Connection Assignment Inputs and Outputs

Pin Assignment - View from below

When connecting the module, it is crucial to pay attention to the correct connection assignment and orientation (see notch) of the module. Incorrect connection (e.g., twisting or misalignment) can lead to unforeseen behavior or dangerous situations!

Pin Overview

ECU

Freescale S08DZ60

• Clock frequency: 8 MHz
• Flash: 60 K
• RAM: 4 K
• EEPROM: 2 K

Interfaces

Power Supply

DO_POWER Self holding, even when Pin X101.6 is off

Block Diagram

A block diagram illustrates the interconnection of the ECU (Freescale S08DZ60) with power supply, CAN bus interface (TJA1043 ISO 11898-2), and various outputs (DO_OUTPUT, PWM_OUTPUT). The diagram shows the flow of signals and power, including protection circuits like SMCJ33CA and MIC2951 +5V.

Technical Drawing in mm, Tolerances according to ISO 2768-1 V

Detailed dimensional drawings of the Microplex 7L module are provided, showing top, bottom, and side views with specific measurements and tolerances.

Configuration Variants and Ordering Information

SCIP Number: 58bd17c6-fc7b-4627-947e-b1ff593ffcf8

Accessories

Manufacturer

MRS Electronic GmbH & Co. KG
Klaus-Gutsch-Str. 7
78628 Rottweil

Notes on Wiring and Cable Management

Lowside Outputs

Lowside outputs must only be switched against the supply voltage. A diagram illustrates correct wiring for lowside outputs, showing a fuse, ECU, supply voltage, low side PWM output, and actuator connected to GND. A crossed-out diagram shows an incorrect connection where the output is switched against GND.

PWM Outputs

PWM outputs must not be connected together or bridged. Diagrams show correct and incorrect wiring for PWM outputs, with a crossed-out diagram indicating that PWM outputs should not be connected in parallel.

CAN Bus Communication

CAN bus communication is the primary communication between the control unit and the vehicle. Connect the CAN bus with particular care and check the correct communication with the vehicle to avoid unwanted behavior. Diagrams illustrate correct CAN bus connections with termination resistors (120 Ohm) and proper shielding.

Safety and Installation Instructions

Read these instructions thoroughly and completely before working with the module. Observe and follow the instructions in the operating manual; see www.mrs-electronic.com.

Personnel Qualification

Only appropriately qualified personnel may work on or near this module.

Safety

• WARNING! Danger of malfunctions in the overall system. Unforeseen reactions or malfunctions in the overall system can endanger the safety of people or machines. Ensure that the module is equipped with the correct software, and that the wiring and parameterization of the hardware correspond.
• WARNING! Danger from unprotected moving components. Unforeseen hazards can arise from the overall system during commissioning and maintenance of the module. Switch off the overall system before any work and secure it against unintentional restart. Before starting commissioning, ensure that the overall system and parts of the system are in a safe state. The module must never be connected or disconnected under load or voltage.
• CAUTION! Risk of burns on the housing. The housing of the module may have an elevated temperature. Do not touch the housing and allow all system components to cool down before working on the system.

Intended Use

The module is intended for controlling or switching one or more electrical systems or subsystems in motor vehicles and work machines and may only be used for this purpose. The module may only be operated in the industrial sector.

• WARNING! Danger from non-intended use! The module is only intended for use in motor vehicles and mobile work machines. Use in safety-relevant system parts for personal protection is not permitted. Do not use the module in explosion-proof areas.
• You are acting in accordance with the intended use: if the operation of the module takes place within the specified and approved operating ranges of the respective datasheet. if you strictly adhere to these instructions and do not make any unauthorized modifications that endanger the safety of persons and the functionality of the module.

Obligations of Overall System Manufacturers

System development, installation, and commissioning of electrical systems must only be carried out by trained and experienced personnel who are sufficiently familiar with the handling of the components used and the overall system. It must be ensured that only functional modules are used. The module must be replaced immediately in case of failure or malfunction. It must be ensured that the wiring and programming of the module do not lead to safety-relevant malfunctions of the overall system in case of failure or malfunction. The manufacturer of the overall system is responsible for the correct connection of all peripherals (e.g., cable cross-sections, connectors, crimps, correct selection/connection of sensors/actuators). The module must not be opened. No modifications or repairs may be carried out on the module.

Installation

The installation location must be chosen so that the module is exposed to as little mechanical and thermal stress as possible. The module must not be exposed to any chemical stress. The module must not be used after being dropped and must be returned to MRS for inspection. Mount the module so that the connectors point downwards. This allows condensate to drain if necessary. Sealing of the cables/wires individually must ensure that no water can enter the module.

Commissioning

Commissioning may only be carried out by qualified personnel. Commissioning may only take place if the condition of the overall system complies with the applicable guidelines and regulations.

Troubleshooting and Maintenance

NOTICE: The module is maintenance-free and must not be opened! If the module shows damage to the housing, locking tabs, seals, or flat connectors, the module must be taken out of operation. Troubleshooting and cleaning work may only be carried out when the power is off. Remove the module for troubleshooting and cleaning. Observe the notes in the other technical documents. Check the integrity of the module and all flat connectors, connections, and pins for mechanical damage, damage due to overheating, insulation damage, and corrosion. In case of incorrect switching, check the software, wiring, and parameterization. Do not clean the module with high-pressure cleaners or steam cleaners. Do not use aggressive cleaning agents or scouring agents.