Emerson Mentor MP Advanced User's Manual page 102

Parameter
Menu 7
structure
7.24 Analog output 2 mode
Bit SP
Coding
Range 0 to 3
Default 0
Update rate Background read
The following modes are available for the analog outputs.
Parameter value Parameter string
0
1
2
3
In voltage mode the output range is -10V to 10V. If the scaling parameter is 1.000 then -10V and 10V are produced when the source parameter is at -
maximum and maximum respectively. Different scaling can be applied with Pr 7.23. If the result of the scaling produces an output of more than +/-
100% the output is clamped within the +/-10V range.
In current modes with a scaling parameter of 1.000 the minimum and maximum current are produced when the source parameter is at 0 and
maximum respectively. Therefore in 4 - 20mA mode the output is 4mA when the source parameter is zero. Different scaling can be applied with
Pr 7.23. If the result of the scaling produces an output of more than 100% the output is clamped at 20mA.
If high speed update mode is selected and the source for the output is one of the parameters designated for high speed analog output operation (see
start of this section) the output is updated at a higher rate with special scaling. If the parameter selected is not designated for this mode the output is
updated at the normal rate. If speed feedback is selected for high speed mode for both analog output 1 and analog output 2 the setting is ignored for
analog output 2. If the high speed mode is selected the output is always a voltage signal.
7.28
Analog input current loop loss
7.29
Bit SP
Coding
1
Update rate Background write
If an analog input is used with 4-20mA or 20-4mA current loop modes the respective bit (Pr 7.28 - analog input 2 and Pr 7.29 -analog input 3) is set to
one if the current falls below 3mA. If the current is above 3mA with these modes or another mode is selected the respective bit is set to zero.
7.30 Analog input 1 offset
Bit SP
Coding
Range ±100.00 %
Default 0.00
Update rate Background read
7.31
Analog input 2 offset
7.32
Bit SP FI
Coding
Range ±100.0 %
Default 0.0
Update rate Background read
An offset can be added to each analog input with a range from -100% to 100%. If the sum of the input and the offset exceeds ±100% the results is
limited to ±100%.
102
Keypad and
Parameter x.00
display
FI DE Txt VM DP ND
1
Mode
VOLt Voltage mode
0-20 0 - 20mA
4-20 4 - 20mA
H.Spd High speed up date mode
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
2
DE Txt VM DP ND
1
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Parameter description Advanced parameter
format
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
Serial comms
descriptions protocol
PS
1
PS
PS
PS
Mentor MP Advanced User Guide
Performance
Issue Number: 1