ABB ACS320 series, User Manual

Page: 295 / 442

Fieldbus control 295

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 1 relay 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 2 = 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
1
RELAY
OUTPUT
2
35
(COMM)
Relay Output 2
controlled by fieldbus.
40134 bit 2 or
00034
BO8 41 BO1
1403
1
RELAY
OUTPUT
3
35
(COMM)
Relay Output 3
controlled by fieldbus.
40134 bit 3 or
00035
BO9 42 BO2
1410
1
RELAY
OUTPUT
4
35
(COMM)
Relay Output 4
controlled by fieldbus.
40134 bit 4 or
00036
BO10 43 BO3
Drive
Parameter
Value Setting
Protocol Reference
Modbus
N2 FLN BACnet
abb drv dcu profile
0162 RO
STATUS
Relay status. 40122 0122 BI4…
BI6
76…
78
BI0…
BI2
0173 RO 2-4
STATUS
Relay 2-4
status.
40123 0123 BI7 79 BI3