ACH580 E-Clipse bypass and packaged drive user manual 119
Embedded fieldbus
Feedback from the drive
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.
Mailbox read/write
The E-Clipse bypass 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 drive or bypass parameter identified. The following table describes the
use of this function.
Drive Parameter BACnet
01.01 Motor Speed Used AV0
01.06 Output Frequency AV1
01.07 Motor Current AV4
01.10 Motor Torque AV5
01.14 Output Power AV6
01.11 DC Voltage AV2
01.13 Output Voltage AV3
01.57 Inverter KWH Counter (resettable) AV8
10.02 DI Delayed Status BI6
10.21 RO Status BI0
58.19 EFB Status Word – bit 0 (STOP) BV0
58.19 EFB Status Word – bit 2 (REV) BV1
Name Description
BACnet Access Point
Drive node
objects
Bypass node
objects
Mailbox Parameter Enter the number of the drive group and
parameter number using the format:
(group #) * 256 + parameter #.
Example: drive parameter 28.01 is entered as
(28 * 256) + 1 = 7169
AV25 AV13
Mailbox Data Contains the parameter value after a read, or
enter the desired parameter value for a write.
AV26 AV14
Mailbox Read A binary value triggers a read – the value of the
“Mailbox Parameter” appears in “Mailbox data”.
BV15 BV21
Mailbox Write A binary value triggers a write – the drive value
for the “Mailbox Parameter” changes to the
value in “Mailbox data”.
BV16 BV22
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