HV Breakout Module – Safety Instructions
Installation Manual
3
Version 01.20 // 2021
WARNING!
The behavior of the CAN bus can be influenced by connecting a CAN bus
measurement module to an existing CAN bus system.
Improper use of a CAN bus system may cause life-threatening situations
and material damage.
"
Always connect CAN bus measurement modules to a separate CAN bus
system (measurement bus).
"
Make sure that this work is only carried out by qualified and trained
personnel.
Maximum internal temperature
Module version
Hardware revision
max. internal temperature
HV BM 1.1/HV BM 1.2
A
+100 °C
HV BM 1.2
B to D
+100 °C
HV BM 1.1/HV BM 1.2
as of E
+120 °C
HV BM 3.1
as of A
+120 °C
Tab. 2-1: Maximum internal temperature
WARNING!
The internal temperature of the measurement module must not be exceeded
(see Tab. 2-1).
The shunt temperature must not 120 °C. As soon as that value is
exceeded, the module will send the error value "0x8001" instead of a measured
value until the temperature value drops below +115 °C again.
Exceeding the limit impairs the operational safety of the HV measurement
module and entails the risk of life-threatening electrical shocks.
)
Switch off the power supply or interrupt the current flow through the
shunt to prevent further temperature increase of the module.
)
Always monitor the temperature of the shunt and the internal temperature
of the measurement module in order to make sure at any time that they
do not overheat.
→ See chapter 5.2.5 "Temperature monitoring".
WARNING!
The measurement module has to be connected to ground in order to
ensure user safety.
If the ground connection is not established, there is danger to life due to
high voltage.
"
Connect the measurement module to ground (PE).
"
Make sure that this work is only carried out by qualified and trained
personnel.
"
Observe safety instructions.
