PD-01 PROFIBUS-DP Module

Possible LED displays of SP LED:

LED

Indication

Corrective Actions

OFF

No Power Supply

Verify that the power supply of PD-01.

 

 

Check whether the power supply is

 

 

connected and that power is applied to

 

 

the PD-01 through the connector.

Red, blinking

CRC check fault

Check your communication setting in

 

 

AC Drive (9600, <8,N,2>, RTU)

 

 

 

Red ON

Connection failure, or

1. Check whether the connections

 

No connection

between AC Drive and RS485 of

 

 

PD-01 are all correct

 

 

2. Re-wire the connections between AC

 

 

Drive and ensure that the wire

 

 

specification is correct.

Green, blinking

AC Drive returns error code

1. Check the AC Drive type and version.

 

 

Not all Delta VFD series Drive are

 

 

supported.

 

 

2. Check the PLC program, and ensure

 

 

the operating address in PD-01 is

 

 

correct.

Green ON

Normal

 

NOTE:

If both SP LED and NET LED are in steady orange, it indicates that PD-01 has entered into the “test mode”. Please do not set the value of address switch of PD-01 to 0XFF at this time. Be sure to set other value and energize PD-01 again.

Troubleshooting via diagnostic data

PD-01 provides 16 bytes diagnostic data when the alarm occurs and when user parameter setting “LossSPComTreat” is set to “Continue data exchange and report alarm”. It includes 6 bytes standard diagnostic data and 10 bytes device related diagnostic data. The following table shows the meanings of the 16 bytes:

Byte 1-6

Byte 7

Byte 8

Byte 9

Byte 10

 

 

 

 

Byte 16

Standard

Length in bytes

SP communication

Error code

Reserved

diagnostic data

 

status

 

 

Byte 7 indicates the length of device related diagnostic data including itself, so if byte 7 is 10 (0Ahex), it indicate device related to diagnostic data have 10 bytes (including byte 7).

Byte 8 indicates the SP communication status when the alarm occurs, and the valid value should be as follows:

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Delta PD-01 user manual Troubleshooting via diagnostic data