Mitsubishi FR-F720-00046-NA Instruction Manual page 261

(2) BACnet reception status monitor (Pr.52)
Set Pr. 52 = "81" to monitor BACnet communication status on the operation panel (FR-DU07) and parameter unit (FR-
PU04/FR-PU07).
Status
Idle
Automatic baud rate
recognition
Not joined the network
Data to own node
Data to other node
Node separated
Error data
(3) % setting reference frequency (Pr. 390)
Setting of a reference frequency to the set frequency is available.
The setting value of Pr. 3
90 % setting reference frequency
converted to the set frequency in the following formula.
• Set frequency = Pr. 3
90 % setting reference frequency
REMARKS
• The % setting reference frequency cannot be set at less than the minimum frequency resolution of the inverter.
• The set frequency is written to RAM.
• The set frequency is applied at the writing of Speed scale. (The set frequency is not applied at the setting of Pr. 390.)
(4) Automatic baud rate recognition (Pr. 726 Auto Baudrate/Max Master)
Automatic changing of baud rate is available with Pr. 726 setting. When Pr. 726 = "128 to 255", turn the power ON from
OFF or reset the inverter to start automatic baud rate recognition.
Pr. 726 setting
Automatic baud rate recognition is invalid
0 to 127
(Using Pr. 332 setting for baud rate)
Inverter monitors the data on the communication bus, and changes the baud rate from Pr. 332
128 to 255
setting. The recognized baud rate is written to Pr. 332.
REMARKS
• After the baud rate recognition, the recognized baud rate is written in EEPROM of Pr. 332 regardless of Pr. 342 Communication
EEPROM write selection setting.
• BACnet status monitor displays "1" during automatic baud rate recognition.
• Communication error count monitor is not performed during automatic baud rate recognition.
CAUTION
• During automatic baud rate recognition, inverter does not transmit data, but only accepts data.
• Automatic baud rate recognition cannot finish if inverter is not connected to the communication bus. (BACnet protocol will not
be established.)
• Automatic baud rate recognition cannot finish if inverter is receiving abnormal data continuously. (BACnet protocol will not be
established.)
Data
0 Never had BACnet communication
During automatic baud rate recognition
1
(Communication error during automatic baud rate recognition is not counted)
2 Waiting for a token to own node
10 Received a token to own node
11 Received a supported request to own node (including broadcasting)
12 Received an unsupported request to own node (including broadcasting)
20 Received a token to other nodes
30 Separated from token passing after joined in it
90 Detected a communication error
Protocol error (LPDU, NPDU, APDU are not following the format
91
regulations.)
is 100% reference. The reference to the frequency command is
× Speed scale (Refer to page 254)
Pr. 390 % setting reference frequency
Set frequency written to the inverter
Set frequency (Speed scale)
Description
Communication operation and setting
Description
0.00Hz
0%
100.00%
LF signal
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
4
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