Firmware Manual

9000X AF Drives
MN04004001E
For more information visit: www.eaton.com
8-5
August 2010
Description of Parameters
Table 8-2: Preset Speeds 3 to 7
Speed
Multi-step speed
select 1 (DIN4)
Multi-step speed
select 2 (DIN5)
Multi-step speed
select 3 (DIN6)
Multi-step speed
select 4 (DIN3)
Basic speed 0000
P1.1.17 (3) 1 1 0 0
P1.1.18 (4) 0 0 1 0
P1.1.19 (5) 1 0 1 0
P1.1.20 (6) 0 1 1 0
P1.1.21 (7) 1 1 1 0
132 PID controller D-time 57 (P1.1.14)
ID132 defines the derivative time of the PID controller. If this parameter is set to 1.00
second a change of 10% in the error value during 1.00 s causes the controller output to
change by 10.00%. If the parameter value is set to 0.00 s the PID controller will operate
as PI controller. See examples below.
Example 1:
In order to reduce the error value to zero, with the given values, the frequency
converter output behaves as follows:
Given values
:
P1.1.12, P = 0%
P1.1.13, I-time = 1.00 s
P1.1.14, D-time = 0.00 s Min freq. = 0 Hz
Error value (setpoint – process value) = 10.00% Max freq. = 60 Hz
In this example, the PID controller operates practically as an I-controller only.
According to the given value of P1.1.13 (I-time), the PID output increases by 5 Hz
(10% of the difference between the maximum and minimum frequency) every
second until the error value is 0.