Daikin MD5 - Analog Output Control; PID Control Setpoint Source; Communication Fault

Analog Output Control
Using the eldbus for analog output control 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.)
Table 30: Analog Output Control Parameters
Drive Parameter Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
Daikin DRV DCU PROFILE
1501 AO1 CONTENT SEL
135 (COMM
VALUE 1)
Analog Output
1 controlled
by writing to
parameter 0135.
— — — —
0135 COMM VALUE 1 — 40135 AO14 46 AO0
1507 AO2 CONTENT SEL
136 (COMM
VALUE 2)
Analog Output
2 controlled
by writing to
parameter 0136.
— — — —
0136 COMM VALUE 2 — 40136 AO15 47 AO1
PID Control Setpoint Source
Use the following settings to select the eldbus as the setpoint source for PID loops:
Table 31: PID Control Setpoint Parameters
Drive Parameter Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
Daikin DRV DCU PROFILE
4010
SET POINT SEL
(Set 1)
8 (COMM VALUE 1)
9 (COMM + AI1)
10 (COMM*AI1)
Setpoint is either:
• Input Reference
2 (+/-/* AI1).
Control requires
parameter 1106
value = comm.
• Process PID
setpoint. Control
requires parameter
1106 value = pid1
out and parameter
4010 value =
comm.
40003 AO2 61 AV174110
SET POINT SEL
(Set 2)
4210
SET POINT SEL
(Ext/Trim)
Communication Fault
When using eldbus control, specify the drive’s action if serial communication is lost.
Table 32: Communication Fault Parameters
Drive Parameter Value Description
3018 COMM FAULT FUNC
0 (NOT SEL)
1 (FAULT)
2 (CONST SP7)
3 (LAST SPEED)
Set for appropriate drive response.
3019 COMM FAULT TIME Set time delay before acting on a communication loss.
eMbedded fieldbUs
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