Yaskawa F7 Drive Enhanced PID for Air Compressor - Manual (Page 7)

Date: 08/01/05, Rev: 05-08 Page 7 of 17 TM.F7SW.096
4.1 Parameters (continued)
Parameter
Number
Modbus Address
Parameter Name
Digital Operator
Display
Description
Range Default
Change During
Run
Access Level For All
Control Modes *1
P2-02 60BH
PID Output Gain 2
Output Gain 2
This parameter sets the gain at the
output of the PID. Functions the same
as PID Output Gain (B5-10), but with
finer resolution (0.01 versus 0.1). The
total output gain is determined by B5-
10 x P2-02.
0.00
~
25.00
1.00 No A
P2-03 60CH
PID Setpoint Offset
Setpoint Offset
This parameter sums with the PID
setpoint (analog input, pulse input,
network communication, or parameter)
to provide an offset. -100.0
~
+100.0
%
0.0 No A
P2-04 60DH
PID Trim Mode
Selection
PID Trm Mode Sel
This parameter selects how the PID
output will trim the frequency reference.
Active only when b5-01 = 3 or 4.
0: Constant
The PID output trim is independent
of the frequency reference.
1: Freq Ref Prop
The PID output trim is proportional
to the frequency reference.
0 ~ 1 0 No A
P2-05 60EH
Frequency
Reference
Proportional Trim
Lower Limit
FrefProp Low Lim
This parameter sets the lower limit of
the PID output trim of the frequency
reference when P2-01 = 1 (trim is
proportional to the frequency
reference). Active only when b5-01 = 3
or 4 and P2-04 = 1.
0.00
~
100.00
%
10.00 Yes A
P2-06
60FH
Wake-Up Delay
Timer
Wake Up Delay
This parameter determines the time
delay after the frequency reference
exceeds the sleep level, that the drive
will resume running. 0.0
~
600.0
sec
1.0 No A
P2-07
610H
Minimum Off-Time
during sleep
operation
Min Off Time
This parameter determines the
minimum amount of time the drive will
be off during sleep mode to allow the
pressure in the sump to dissipate. 0.0
~
6000.0
sec
30.0 No A
P2-08
611H
Blowdown Valve
Delay Time
Blowdown Delay
This parameter determines (after the
drive is started or re-started after a
sleep cycle) how long the drive has to
run for before closing the multi-function
digital output “blowdown valve”.
0.0
~
120.0
sec
3.0 No A
*1: Access Level (A1-01): Q = “Quick Start”, A = “Advanced”, F = “Factory”.