Omron VARISPEED F7 User Manual page 285

PID Input Methods
PID Target Value Input Sources
Normally, the frequency reference source selected in b1-01 is the PID target value source. If frequency refer-
ence + PID output is selected as PID mode (b5-01=3/4), the PID target value can be set as shown in the fol-
lowing table. Only one input can be selected as PID target input. A duplicate allocation of the PID target
function results in an OPE alarm.
PID Target Input Method
Multi-Function Analog Terminal A2
Input
MEMOBUS register 0006H
Pulse train input
Parameter setting
INFO
PID Feedback Input Methods
Select one of the following PID control feedback input methods. Only one input can be selected as PID feed-
back input. A duplicate allocation of the PID feedback function results in an OPE error.
6
Input Method
Multi-function analog input
Pulse train input
Monitor Parameter
INFO
102
6-
Set H3-09 to C (PID target value). Either the pulse train input or the analog input A1 can be selected as PID feed-
back value.
Set MEMOBUS bit 1 in register address 000FH to 1 (enable/disable PID target value from communications) to be
able to use register number 0006H as the PID target value.
Set H6-01 to 2 (PID target value).
If b5-18 is set to 1 the value in b5-19 becomes the PID target value.
If the PID function is used, the frequency reference value becomes the target value, which is set and
shown in Hz on the operator. Nevertheless, internally the PID target value is used in percent. I.e. the
following formula is used:
frequency reference [Hz]
PID target value [%] =
max. output frequency [Hz]
Set H3-09 (Multi-function Analog Input Terminal A2 Selection) to B (PID feedback).
Set H6-01 to 1 (PID feedback).
Set the number of the monitor parameter U1-
Adjust PID target value and PID feedback value using the following items.
• Analog input: Adjust using the analog input terminal gain and bias.
• Pulse train input: Adjust using pulse train scaling, pulse train input gain, and pulse train input bias.
Setting Conditions
• 100%
Setting Conditions
, which shall be the PID feedback, in parameter b5-31