ABB ACH550-VCR - Page 499

ACH550 E-Clipse Bypass User’s Manual 2-153
Embedded fieldbus
Activate drive control functions
Controlling the drive
Fieldbus control of various drive functions requires configuration to:
• Tell the drive to accept fieldbus control of the function.
• Define as a fieldbus input, any system data required for control (drive only or
system)
• Define as a fieldbus output, any control data required by the drive.
The following sections describe the configuration required for each control function.
Note: The user should change only the parameters for the functions you wish to
control via BACnet. All other parameters should typically remain at factory default.
Start/stop direction control – drive
Using the fieldbus for start/stop/direction control of the drive requires:
• Drive parameter values set as defined below.
• Fieldbus controller supplied command(s) in the appropriate location.
Note:
2
Ext1 = Ref 1
Ext 2 = Ref 2; Ref 2 normally used for PID setpoint commands.
Input reference select
Using the fieldbus for start/stop/direction control of the drive requires:
• Drive parameter values set as defined below.
• Fieldbus controller supplied command(s) in the appropriate location.
Note:
2
Ext1 = Ref 1
Ext 2 = Ref 2; Ref 2 normally used for PID setpoint commands.
Bypass Parameter Value Description
BACnet
Access Point
1601 START/STOP 2 (COMM) Start/Stop by fieldbus with Ext1 or
Ext2
2
selected
BV10
1625 COMM CTRL 0 (Drive
Only)
1 (System)
1625 = 0 for control signals (Start/
Stop and enables) to go to drive only
1625 = 1 for control signals to go to
the system (drive or bypass,
depending on keypad mode
selection)
N/A
Drive Parameter Value Description
BACnet
Access Point
1102
EXT1/EXT2 SEL
2
COMM (8) Reference set selection by fieldbus. BV13
1103
REF1 SEL COMM (8) Input reference 1 by fieldbus. AV16
1106
REF2 SEL COMM (8) Input reference 2 by fieldbus. AV17