Delta PD-01 user manual Troubleshooting via diagnostic data

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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