
Hyundai Robotics
70
_Maintenance | Controller check and maintenance
Hyundai Robotics
4.3.4.1
Connection and display
The connector layout, usages, and connecting devices used by the RDM are as follows:
Connector
Usage
External connecting device
CNPM3
Connection of 48 V DC power line (for motor)
Power pre-charge module (PPM) CNPM3
CNRDM
Connection of state information signals
Safety control module (SCM) CNPMD
The details of the state display of the RDM are as follows:
LED
Usage
Display details (lamp state)
LED7
Detection of overheating of the regenerative
discharge resistor or overcurrent of the discharge
current
Overheating of the regenerative discharge
resistor (95℃)
or Overcurrent of the discharge current
(15A)
LED8
Detection of disconnection of the regenerative
discharge resistor
The regenerative discharge resistor is
disconnected (displayed even during the
regenerative discharge operation)
LED9
Detection of regenerative discharge operation
Under regenerative discharge operation
LED10
Detection of regenerative discharge overtime
Occurrence of regenerative discharge
operation for 10 ms or longer
4.3.4.2
Information on major components
The regenerative discharge board uses fuses for protecting components against overcurrent, and a regenerative
discharge resistor. The fuses are mounted at upstream of the board and at the upstream of the regenerative
discharge resistor, while the resistor is mounted at the downstream of the board. For the inside composition and
component specifications, see the following figure and table.
Figure 28 Inside view of the RDM (top)
Terminal block (P3) for
regenerative discharge
resistor connection
Fuse and fuse holder (F1)
for input overcurrent
protection
Thermal fuse connection terminals (P1, P2)
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