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Appendix B: Frame Ground
Electronic circuits are constantly vulnerable to Electro Static Discharge (ESD), which
becomes worse in a continental climate area. PDS series modules feature a new design for
the frame ground, which provides a path for bypassing ESD, allowing enhanced static
protection (ESD) capability and ensures that the module is more reliable.
It is recommended that the Frame Ground of the PDS series module is corrected to the
earth ground, such as the ground of an AC power supply, to provide better ESD protection
for the module.
The PDS-700, PPDS-700-MTCP, DS-700 module is designed with two Frame Ground
contact points, Frame-Ground-A and Frame-Ground-B, as shown in the figure below.
When mounted to a DIN rail, Frame-Ground-B and the DIN rail are in contact. The Frame
Ground with the PDSM-700, PPDSM-700-MTCP is on the metal case. When mounted to
a DIN rail, metal case and the DIN rail are in contact. The Frame Ground with the PPDS-
700-IP67 is on the pin-1 of the DC plug. Thus, protection can be achieved by also
connecting the DIN rail to earth ground.
Frame
Ground_B
Frame
Ground_A
Frame Ground
Summary of Contents for PDS-700 Series
Page 56: ...PDS Series User Manual V1 4 Oct 2009 56 PDSM 782 D PPDSM 782 D Pin Assignments...
Page 58: ...PDS Series User Manual V1 4 Oct 2009 58 PDS 700 IP67...
Page 59: ...PDS Series User Manual V1 4 Oct 2009 59...
Page 60: ...PDS Series User Manual V1 4 Oct 2009 60...
Page 61: ...PDS Series User Manual V1 4 Oct 2009 61 DS 712 PPDS 712 MTCP Pin Assignments E1 10 100 Base TX...
Page 62: ...PDS Series User Manual V1 4 Oct 2009 62 DS 715 PPDS 715 MTCP Pin Assignments E1 10 100 Base TX...
Page 64: ...PDS Series User Manual V1 4 Oct 2009 64 Digital Output...
Page 66: ...PDS Series User Manual V1 4 Oct 2009 66 PDSM 700 PPDSM 700 MTCP...
Page 67: ...PDS Series User Manual V1 4 Oct 2009 67 PPDS 700 IP67...
Page 68: ...PDS Series User Manual V1 4 Oct 2009 68...
Page 69: ...PDS Series User Manual V1 4 Oct 2009 69 Din Rail Mounting Stack Mounting...
Page 91: ...PDS Series User Manual V1 4 Oct 2009 91...
Page 147: ...147 Init Mode Short INIT and GND PDSM 700 D PPDSM 700 D MTCP Run Mode Open INIT...
Page 152: ...PDS Series User Manual V1 4 Oct 2009 152 Example...