Installation Guide
CONFIDENTIAL
TG-0057_19 TM4 SUMO HD CO300-A1_A2_A2.5 Installation Guide
© Dana TM4 inc., 2013-2020
Page 21 of 42
2020-11-20
4.5 Electrical installation
This section describes the procedures in order to safely undertake the electrical installation of the MCU.
Although the final installation sequence will be decided by the system integrator, there are two suggested
installation sequences given in Section 4.5.2.
Note
: It is imperative that you are aware of the safety risks involved in this type of electrical installation;
before you start, refer to Section 4.5.1 for more detailed information.
4.5.1 Safety instructions related to electrical installation
Carefully read all safety instructions before making any electrical connections in the system.
WARNINGS
This product generates high voltage that can cause an electric discharge or electrocution
resulting in injury or death.
When installing the product, verify that:
•
The traction battery (high-voltage battery) is disconnected.
•
The auxiliary battery (12 V/24 V battery) is disconnected.
Incorrect assembly or an incorrect electrical connection during assembly of this product can
cause electrocution and/or fire.
The assembly and connections must conform to the instructions included in this Guide.
Care must be taken when manipulating electrical equipment.
This product must be installed by qualified and authorized personnel in accordance with applicable
vehicle standards and industry practices. Always use appropriate insulation and protection before
manipulating the product even when the product is disconnected from a high-voltage source.
ESD sensitive – do not touch connector pins or EMI filter.
The internal electronics are sensitive to electrostatic discharges.
Risk of electric shock – do not open the MCU and/or motor.
Beside the MCU high-voltage panel, the electrical installation of the system does not require the MCU
and/or the motor to be opened or disassembled.
Risk of electric shock – capacitor stores hazardous energy.
Wait 10 minutes after disconnecting all sources of supply prior to removing cables and/or servicing to
ensure that internal TM4 CO300HV MCU capacitors are discharged.
This product uses common mode capacitors between the high-voltage DC bus and the chassis.
Some apparatuses can cause dangerous frame current to pass through these capacitors if they
are connected to a high-voltage DC bus.
Always measure the voltage between the high-voltage DC bus and the chassis using appropriate
protection and insulation before manipulating the product.
This product uses differential mode capacitors between the positive high-voltage DC bus (+) and
the negative high-voltage DC bus (-). Even when the product is disconnected from the high-
voltage source, these capacitors can hold a voltage high enough to cause an electric discharge
or death.
Always measure the voltage between the positive high-voltage DC bus (+) and the negative high-voltage
DC bus (-) using appropriate protection and insulation before manipulating the product.
