Feedback from the Drive – EFB
Pre-dened Feedback
Inputs to the controller (drive outputs) have pre-dened meanings established by the protocol. This feedback does not
require drive conguration. The following table lists a sample of feedback data.
Table 58: Pre-dened Feedback Protocol Reference
Drive Parameter
Protocol Reference
Modbus N2 FLN BACnet
0102 SPEED 40102 AI3 5 AV0
0103 FREQ OUTPUT 40103 AI1 2 AV1
0104 CURRENT 40104 AI4 6 AV4
0105 TORQUE 40105 AI5 7 AV5
0106 POWER 40106 AI6 8 AV6
0107 DC BUS VOLT 40107 AI11 13 AV2
0109 OUTPUT VOLTAGE 40109 AI12 14 AV3
0115 KWH COUNTER 40115 AI8 10 AV8
0118 DI1-3 STATUS – bit 1 (DI3) 40118 BI10, BI11, BI12, 70, 71, 72 BI6, BI7, BI8
0122 RO1-3 STATUS 40122 BI4, BI5, BI6 76, 77, 78 BI0, BI1, BI2
0301 FB STATUS WORD – bit 0 (STOP) 40301 bit 0 BI1 23 BV0
0301 FB STATUS WORD – bit 2 (REV) 40301 bit 2 BI2 21 BV1
NOTE: With Modbus, any parameter can be accessed using the format: 4 followed by the parameter number.
Mailbox Read/Write
The ACS320 provides a “Mailbox” function to access parameters that have not been pre-dened by the protocol. Using mailbox,
any drive parameter can be identied and read. Mailbox can also be used to adjust parameter settings by writing a value to any
parameter identied. The following table describes the use of this function.
Table 59: Mailbox Protocol Reference
Name Drive Parameter
Protocol Reference
Modbus
1
N2 FLN BACnet
Mailbox
Parameter
Enter the number of the drive parameter to access.
Does not apply.
AO19 95 AV25
Mailbox
Data
Contains the parameter value after a read, or enter the desired
parameter value for a write.
AO20 96 AV26
Mailbox
Read
A binary value triggers a read – the value of the “Mailbox Parameter”
appears in “Mailbox data”.
BO19 97 BV15
Mailbox
Write
A binary value triggers a write – the drive value for the “Mailbox
Parameter” changes to the value in “Mailbox data”.
BO20 98 BV16
•
1
As noted above, Modbus provides direct access to all parameters using the format: 4 followed by the
• parameter number.
fIeldbus ConTrols
www.DaikinApplied.com 79 OM 1190-1 • MD4 VFD