94 ACH580 E-Clipse bypass and packaged drive user manual
Embedded fieldbus
Communications fault
When using fieldbus control, specify the bypass’ action if external serial
communication is lost.
Feedback from the ABB E-Clipse Bypass – EFB
Pre-defined feedback
Inputs to the controller (bypass outputs) have pre-defined meanings established by
the protocol. This feedback does not require bypass configuration. The following
table lists a sample of feedback data. For a complete listing, see input word/point/
object listings in the technical data for the appropriate protocol.
Note: As noted above, Modbus provides direct access to all parameters using the
format: 400000 + (group #) * 256 + parameter #.
Example: drive parameter 28.01 is mapped as 40000 + 28 * 256 + 1 = 407169.
Bypass Parameter Value Setting
3004 COMM LOSS 0 (Not Sel)
1 (Fault)
2 (Const Sp7)
3 (Last Speed)
Set for appropriate drive/bypass response. NOTE:
If the system is in bypass mode when
communication is lost, choices 2 and 3 will cause
the bypass contactor to remain in its present state.
3005 COMM FAULT TIME Set time delay before acting on a communication loss.
Bypass Parameter
Protocol Reference
Modbus N2 BACnet
0101 MOTOR CURR 400257 AI1 AV0
Type Name Description N2 BACnet
DI System Ready System is ready to accept start command (either
mode).
BI1 BV7
DI System Enabled System is enabled to start motor (either mode). BI2 BV9
DI System Started System start interlocks are made and start
command has been received (either mode).
Motor runs if run permissive is active.
BI3 BV1
DI System Running Motor is running (either mode). BI4 BV0
DI Fieldbus Local System is under fieldbus local control (either
mode).
BI5 N/A
DI Bypass Fault Bypass is faulted. BI6 BV2
DI Bypass Warning Bypass is alarming. BI7 BV5
DI Comm Control System is configured for control in the comm
channel
BI8 N/A
DI Override Override status BI9 BV13
DI DI1 Status Bypass digital input 1 status BI10 BI5
To Next Page
Loading...
Need help?
General
