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ACH550-UH User’s Manual
Serial Communication – EFB
1. More than 3 relays requires the addition of a relay extension module.
2. Applies only for Modbus using ABB Drive profile.
3. BACnet not defined at time of publication.
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.
1. Applies only for Modbus using ABB Drive profile.
2. BACnet not defined at time of publication.
Analog Output Control
Using the fieldbus for analog output control (e.g. PID setpoint) requires:
•
Drive parameter values set as defined below.
•
Fieldbus controller supplied analog value(s) in the appropriate location. (The
location is defined by the Protocol Reference, which is protocol dependent.)
1. Applies only for Modbus using ABB Drive profile.
2. BACnet not defined at time of publication.
PID Control Setpoint Source
Using the fieldbus for the PID control setpoint requires:
•
Drive parameter values set as defined below.
Drive Parameter
Setting
Protocol Reference
Modbus
1
N2
FLN
BACnet
2
0122
RO
1-3
STATUS
Relay 1…3 status.
40122
BI4…BI6
76…78
0123
RO
4-6
STATUS
Relay 4…6 status.
40123
BI7…BI9
79…81
Drive Parameter
Value
Setting
Protocol Reference
Modbus
1
N2
FLN
BACnet
2
1501
AO
1
CONTENT
SEL
135 (
COMM
VALUE
1)
Analog Output 1
controlled by
writing to
parameter 0135.
–
–
–
–
0135
COMM
VALUE
1
–
40135
AO14
46
1507
AO
2
CONTENT
SEL
136 (
COMM
VALUE
2)
Analog Output 2
controlled by
writing to
parameter 0136.
–
–
–
–
0136
COMM
VALUE
2
–
40136
AO15
47