Technical data

50 OM 1191
Embedded Fieldbus
Activate Drive Control Functions – EFB
Controlling the Drive
Fieldbus control of various drive functions requires
congurationto:
• Tellthedrivetoaccepteldbuscontrolofthefunction.
• Deneasaeldbusinput,anydrivedatarequiredfor
control.
• Deneasaeldbusoutput,anycontroldatarequiredby
the drive.
The following sections describe, at a general level, the
congurationrequiredforeachcontrolfunction.Forthe
protocol-specicdetails,seethedocumentsuppliedwiththe
FBA module.
Start/Stop Direction Control
Usingtheeldbusforstart/stop/directioncontrolofthedrive
requires:
• Driveparametervaluessetasdenedbelow.
• Fieldbus controller supplied command(s) in the
appropriatelocation.(Thelocationisdenedbythe
Protocol Reference, which is protocol dependent.)
NOTE: EXT1 = REF1 typically used for follower; EXT2 =
REF2 typically used for PID setpoint.
Table 24: Start/Stop Direction Parameters
Drive
Parameter
Value Description
Protocol Reference
Modbus1
N2 FLN BACnet
Daikin
DRV
DCU PROFILE
1001
EXT1
COMMANDS
10 (COMM) Start/Stop by eldbus with Ext1 selected. 40001 bits 0…3 40031 bits 0, 1 BO 24 BV10
1002
EXT2
COMMANDS
10 (COMM) Start/Stop by eldbus with Ext2 selected. 40001 bits 0…3 40031 bits 0, 1 BO1 24 BV10
1003 DIRECTION 3 (REQUEST) Direction by eldbus. 4002/4003
2
40031 bit 3 BO2 22 BV11
1.
For Modbus, the protocol reference can depend on the profile used, hence two columns in these tables. One column refers to the Daikin Drives profile, selected when parameter 5305 = 0
(
Daikin DRV LIM) or 5305 = 2 (Daikin DRV FULL). The other column refers to the DCU profile selected when parameter 5305 = 1 (DCU PROFILE). See Daikin control profiles technical
data section.
2. The reference provides direction control – a negative reference provides reverse rotation.
Input Reference Select
Usingtheeldbustoprovideinputreferencestothedrive
requires:
• Driveparametervaluessetasdenedbelow.
• Fieldbus controller supplied reference word(s) in the
appropriatelocation.(Thelocationisdenedbythe
Protocol Reference, which is protocol dependent.)
Reference Scaling
Where required, REFERENCES can be scaled. See the
following, as appropriate:
• Modbus Register 40002 in the Modbus protocol
technical data section.
•
ReferencescalingintheDaikincontrolprofiles
technical data section.
• N2 analog output objects in the N2 protocol technical
data section.
• The slope of points 60 and 61 in the FLN protocol
technical data section.
Table 25: Input Reference Parameters
Drive Parameter Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
Daikin
DRV
DCU PROFILE
1102 EXT1/EXT2 SEL 8 (COMM)
Reference set
selection by
eldbus.
40001 bit 11 40031 bit 5 BO5 26 BV13
1103 REF1 SEL 8 (COMM)
Input reference
1 by eldbus.
40002 AO1 60 AV16
1106 REF2 SEL 8 (COMM)
Input reference
2 by eldbus.
40003 AO2 61 AV17