Continued
B. Setpoint Reference Selection
n002 : Operation Mode Selection
(Oper Mode Sel)
n043 : Analog Input Selection
(AnalogInput Sel)
n024thru n030 : Multi-step Frequency Presets Factory settings: n030 = 6.0
(Reference 1-6, Jog Frequency) all others = 0.0
Range (ea): 0.0 to 9999
Select the PID control Setpoint Reference from either the external terminal FV (for 0-10
VDC), or from multi-step speed parameters, n024 thru n030 .
• External terminal FV: Set n002 to "SEQ=OPR REF=TRM" (" 2 ") or
"SEQ=TRM REF=TRM" (" 3 ").
• Multi-step speed parameters: Set n002 to "SEQ=OPR REF=OPR" (" 0 ") or
"SEQ=TRM REF=OPR" (" 1 "). (See Operation Mode Selection, page A1-1,
and Multi-step Speed Setting, paragraph 5.19B.)
C. Feedback Signal Selection
n044 : Terminal FI Signal Level Selection Factory setting: 1
(Terminal FI Sel)
Range: 0 or 1
Select the PID control Feedback Signal from external terminal FI for either a current signal
(4-20mA DC) or a voltage (0-10 VDC).
• Current signal: Set n044 to "4-20 mA" (" 1 ").
• Voltage signal: Set n044 to "0-10 VDC" (" 0 ").
( Must also cut jumper J1 on Control PCB. )
D. Inverse PID
NOTE: The following applies only when n084 = "Enable Rev Fdbk" (" 3 ").
If using inverse PID control, the following adjustments need to be made:
• If a 0-10 VDC reference is used to determine the setpoint, exchange the
values in n048 and n049.
EXAMPLE: If the Frequency Reference Gain (n048) = " 100 " % and the
Frequency Reference Bias (n049 ) = " 0 " %, these parameters will now
need to be set as follows:
n048 = " 0 " % n049 = " 100 " %
5-46
5.22 PID CONTROL
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