WEG CFW701 Quick Setup Manual page 14

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PROG DEF
Control connections
P0222 1
P0231 5
P0233 0
DIP SWITCH
S1.2 = ON
A|1
Process variable - engineering unit
P0510 24
P0511 1
Setpoint
P1011 1) 0
PID controller
P1017 0
P1020 2) 1
2)
P1021 0.430
P1022 2) 0
Examples of applications:
Pump
J
Direct: increase the pressure, increase the pump speed
J
Cooling tower
J
Reverse: increase temperature, decrease fan speed
J
Process variable
Direct
Reverse
Sensor scale
1)
P1027 0
1) 1000
P1028
Notes: Δ Setting depends on application.
1) According to the selection of the engineering unit (P0510 and P0511
parameter).
2) Only change these parameters if it is necessary to improve the system
response.
Important: CFW701 offers two (AI2 and AI3) external PID Controllers for use to control
independent process variables (it might be for the control of external process not
related to what the main PID loop is handling). This discards the use of an additional
PID controller. Refer to CFW701 programming manual chapter 19.9 and 19.10 for
further information.
CFW700 HVAC-R Drives
14
User Description
7 Remote reference = AI1
5 AI1 signal function = main PID
1 AI1 = 4 - 20 mA
21 = °F; 22 = bar; 24 = psi; 36 = gal/s; 37 = gal/min;
Δ
40 = l/min; 50 = m³/h
1 Decimal point of engineering unit = wyw.z
Δ Setpoint by HMI
0 = disable PID / 1 = Direct / 2 = Reverse
PID proportional gain
Δ
PID integral gain
PID derivative gain
VFD speed
Sensor minimum level (%)
Δ
Sensor maximum level (%)