WEG CFW-09 User Manual page 226

[Factory Setting]
Parameter
P535
Wake Up Band
P536 (1)
Automatic Set of
P525
P537
Hysteresis for the
Set Point =
Process Variable
P538
Hysteresis VPx/VPy
Range
Unit Description / Notes
0 to 100 The value of this parameter is used along with P212 (Condition to Leave
[ 0 ] Zero Speed Disable), providing additional condition to leave zero speed
1 % disable, that is, error of PID > P535. Refer to P211 to P213.
When the setpoint of the PID regulator is by HMI (P221/P222 = 0) and
P536 is zero (active) by commutating from manual to automatic, the
0 or 1
process variable value will be loaded at P525. In this way you prevent
[ 0 ]
PID oscillations during the commutation from "Manual" to "Automatic".
-
When the Set Point value is equal to the Process Variable and it is
0 to 100
within the range defined by the hysteresis value (set at parameter P537),
[ 1 ]
the digital or relay output set to the option Set Point = Process Variable
1 %
(SP = PV) is activated and remains in this condition until the process
variable reaches a value outside of the hysteresis range (refer to figure
6.39 v)).
NOTE!
This function is enabled only in the automatic mode and when
P203 = 1.
It is used in functions of the digital and relay outputs:
0.0 to 50.0
[ 1.0 ]
Process Variable > VPx and Process Variable < VPy
0.1 %
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
P536
0
1
Table 6.69 - Automatic set of P525
Action Type
Active
Inactive
227