1-196 ACH550-UH User’s Manual
Embedded fieldbus
Relay output control
Using the fieldbus for relay output control requires:
• Drive parameter values set as defined below.
• Fieldbus controller supplied reference word(s) in the appropriate location. (The
location is defined by the Protocol Reference, which is protocol dependent.)
1. More than 3 relays requires the addition of a relay extension module.
For example: To control relays 1 and 2 using serial communication:
Set parameters 1401
RELAY OUTPUT 1 and 1402 RELAY OUTPUT 1 = 35 (COMM).
Then, for example using N2:
• To turn Relay 1 On: Force object B07 to On.
• To turn Relay 2 On: Force object B08 to On.
• To turn both Relay 1 and 2 On: Force objects B07 and B08 On.
Note: Relay status feedback occurs without configuration as defined below.
Drive Parameter Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
ABB DRV
DCU
PROFILE
1401 RELAY
OUTPUT 1
35
(COMM)
Relay Output 1
controlled by fieldbus.
40134 bit 0 or 00033 BO7 40 BO0
1402 RELAY
OUTPUT 2
35
(COMM)
Relay Output 2
controlled by fieldbus.
40134 bit 1 or 00034 BO8 41 BO1
1403
RELAY
OUTPUT 3
35
(COMM)
Relay Output 3
controlled by fieldbus.
40134 bit 2 or 00035 BO9 42 BO2
1410
1
RELAY
OUTPUT 4
35
(COMM)
Relay Output 4
controlled by fieldbus.
40134 bit 3 or 00036 BO10 43 BO3
1411
1
RELAY
OUTPUT 5
35
(COMM)
Relay Output 5
controlled by fieldbus.
40134 bit 4 or 00037 BO11 44 BO4
1412
1
RELAY
OUTPUT 6
35
(COMM)
Relay Output 6
controlled by fieldbus.
40134 bit 5 or 00038 BO12 45 BO5
Drive
Parameter
Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
ABB DRV DCU PROFILE
0122 RO 1-3
STATUS
Relay 1…3
status.
40122 0122 BI4…
BI6
76…
78
BI0…
BI2
0123
RO 4-6
STATUS
Relay 4…6
status.
40123 0123 BI7…
BI9
79…
81
BI3…
BI5
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