33 12 16.26 - 001-A - Butterfly Valves - Garney Construction

PF
Profibus Remote
Auxiliary Input
53
Rules
1. Function bit set to ‘‘0’’
Any function bit set to ‘‘0’’ indicates that the particular aux input is to be treated as
a digital signal for field status reporting, e.g. a level switch or motor running status.
If the corresponding invert bit is set to a ‘‘0’’, an open contact is reported as a logic
‘‘1’’ and a closed contact is reported as a logic "0" (i.e. this will invert the input).
If the corresponding invert bit is set to a ‘‘1’’, an open contact is reported as a logic
‘‘0’’ and a closed contact is reported as a logic ‘‘1’’ (i.e. this gives a noninverting
input).
2. Function bit set to ‘‘1’’
Any function bit set to ‘‘1’’ indicates that the particular aux input is to be treated as
a digital command to operate the actuator.
When the corresponding invert bit is set to a ‘‘0’’ this represents an N.C. contact as
being the command source, i.e. a closing contact de-energises the input and an
opening contact energises the input.
When the corresponding invert bit is set to a ‘‘1’’, this represents an N.O. contact as
being the command source, i.e. a closing contact energises the input and an
opening contact de-energises the input.
3. ESD Control
When using ESD (aux input 4), the ESD contact mode setting [A2] should be set to
the default value of [nO]. The [A1]–ESD direction setting should be set to either
open or close the valve (refer to page 34).
5. Remote Source Setting [Od]
Ensure that the correct [Od] setting is selected (refer to page 42).
For Profibus this is [OP].
The factory default for [PF] is [OF]
Examples
1. The full range of remote controls is needed. Open and Close are NO and ESD
and Stop/maintain is NC.
Aux I/P 4 3 2 1
Function 1 1 1 1 = F
Invert 0 0 1 1 = 3 i.e. set [PF] to [F3]
2. Open and close control is required along with 2 inverted digital signal inputs.
(Note that with this setting the open and close commands will be maintained.)
Aux I/P 4 3 2 1
Function 0 0 1 1 = 3
Invert 0 0 1 1 = 3 i.e. set [PF] to [33]
3. Only an ESD input is needed. The requirement is for push to run control with a
NO contact input.
Aux I/P 4 3 2 1
Function 1 1 0 0 = C
Invert 1 0 0 0 = 8 i.e. set [PF] to [C8]
4. Stop/Maintain Control
When energised this will make the Aux input Open/Close control push to run When
de-energised, the Aux input Open/Close control will be maintained. ESD is always
push to run (non maintained).