Power Pre-Charge Module (Ppm) - Hyundai YL005 Maintenance Manual

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4.3.2.6 Information on major components
The safety control module is not allowed to be subjected to maintenance because it is classified as a safety
management item. Specification information on its major components other than the fuses is not provided.
Component
Fuses for preventing overcurrent of the power
F1, F3
to the safety circuit (Channels 1 and 2)
Fuse for preventing overcurrent of the power
F10
4.3.3

Power pre-charge module (PPM)

The PPM pre-charges power for driving the motor of the joint actuator installed for the collaborative robot. It is
composed of relays that open/close the charging system, and a resistor that prevents inrush current.
4.3.3.1 Connection and display
The connector layout, usages, and connecting devices used by the PPM are as follows:
Connector
Output terminal of the 48 V DC output power (for
CNPM3
motor)
Input terminal of the 48 V DC output power (for
CNPM4
motor)
Input terminal of the 48 V DC source power (for
CNEP1
motor)
Control of the power charge function and
CNPR
connection of monitoring signals
The details of the state display of the PPM are as follows:
LED
68
_Maintenance | Controller check and maintenance
Usage
to the external I/O
Figure 25 Power pre-charge module (PPM)
Usage
Usage
Specification
3A (Littelfuse 0453 003)
10A (Littelfuse 0453 005)
External connecting device
Regenerative discharge module (RDM)
CNPM3
Safety control module (SCM) CNPM3
Safety control module (SCM) CNEP1
Safety control module (SCM) TBSYS1
Display details
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