ABB ACH550-UH User Manual page 448

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Bypass relay output control
Using the fieldbus for relay output control requires:
• Bypass 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.)
Parameter
1401
1404
1407
1410
1413
For example: To control relays 1 and 2 using serial communication:
From the bypass keypad, set parameters 1401
OUTPUT
Then, for example using N2:
• To turn Relay 1 On: Force object BO5 to On.
• To turn Relay 2 On: Force object BO6 to On.
• To turn both Relay 1 and 2 On: Force objects BO5 and BO6 On.
Note: Relay status feedback occurs without configuration as defined below.
Bypass
Parameter
0122
0123
Embedded fieldbus
Bypass
Value
16 Relay Output 1
RELAY
1 ( controlled by fieldbus.
OUTPUT COMM
)
CTRL
16 Relay Output 2
RELAY
2 ( controlled by fieldbus.
OUTPUT COMM
)
CTRL
16 Relay Output 3
RELAY
3 ( controlled by fieldbus.
OUTPUT COMM
)
CTRL
16 Relay Output 4
RELAY
4 ( controlled by fieldbus.
OUTPUT COMM
)
CTRL
16 Relay Output 5
RELAY
5 ( controlled by fieldbus.
OUTPUT COMM
)
CTRL
2 = 16 (
COMM CTRL
Value
1-3 Relay 1...3
RO
status.
STATUS
4-5 Relay 4...5
RO
status.
STATUS
ACH550 E-Clipse Bypass User's Manual
Setting
40107 bit 0 or
00033
40107 bit 1 or
00034
40107 bit 2 or
00035
40107 bit 3 or
00036
40107 bit 4 or
00037
RELAY OUTPUT
).
Setting
Modbus
N/A 40104 bit 0...2 or
00033...35
N/A 40104 bit 3...4 or
00036...37
Protocol Reference
Modbus N2 FLN BACnet
BO5 40
BO6 41
BO7 42
BO8 43
BO9 44
1 and 1402
Protocol Reference
N2 FLN
BI6... 76...
BI8 78
BI9... 79...
B20 80
BO0
BO1
BO2
BO3
BO4
RELAY
BACnet
BI0...
BI2
BI3...
BI4