Feedback from the Drive – EFB
Pre-defined Feedback
Inputs to the controller (drive outputs) have pre-defined meanings established by the protocol. This feedback does not
require drive configuration. The following table lists a sample of feedback data.
Table 58:
Pre-defined 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-defined by the protocol. Using mailbox,
any drive parameter can be identified and read. Mailbox can also be used to adjust parameter settings by writing a value to any
parameter identified. 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 .
f
Ieldbus
C
onTrols
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Summary of Contents for ACS320
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