Toshiba TOSVERT VF-AS3 Instruction Manual page 48

2) Set parameters to switch PID1 and PID2 control.
4
[A300] = "0":
[A300] = "1":
4
[A300] = "2":
4
[A300] = "3":
7
[A300] = "4":
9
3) Set PID1 control with reference to 2.1 to 2.4.
4) Set PID2 control with reference to chapter 8.
5) Set the following parameters if necessary.?
Set the operation at start-up for the case
[F369: PID control start wait time] is set
• During the PID control start wait time, no switch occurs between the PID1 and PID2 controls even when
[A300] is set to "1" or "2".
• There is no difference in output in switching to PID1/PID2 control. For example, when a switch from the
PID1 to PID2 control is made, the output at the start of PID2 control matches the output at the end of
PID1 control.
7. PID2 control
Title Parameter name
A300 PID1,2 switching target
A301 PID1,2 switching level
A302 PID1,2 switching hysteresis
A303 PID1 to PID2 switching time
A304 PID2 to PID1 switching time
Only PID1 control
When the PID1 control feedback value reaches ([A301] + [A302])% or more of the set
value, a switch to the PID2 control. The PID1 control is enabled when the feedback
value of it is ([A301] - [A302])% or less of the set value.
The PID2 control is enabled when the feedback value of it is ([A301] + [A302])% or
more of the set value. When the PID2 control feedback value reaches ([A301] -
[A302])% or less of the set value, a switch to the PID1 control.
When the input terminal with [116: PID 1, 2 switching] assigned is ON, the PID2 control
is enabled. When it is OFF, the PID1 control is enabled.
When the time of [A303] elapse from the start of the PID1 control, a switch to the PID2
control. When [A303] = "0: Disabled", this function is disabled.
When the time of [A304] elapse from the start of the PID2 control, a switch to the PID1
control. When [A304] = "0: Disabled", this function is disabled.
Note that the times of [A303] and [A304] do not include the PID control start wait time.
Item
Adjustment range
0: Disabled
1: PID1 feedback
2: PID2 feedback
3: Terminal input
4: Time
5: -
6: -
0 - 200 (%)
0 - 200 (%)
0: Disabled
1 - 2400 (s)
0: Disabled
1 - 2400 (s)
Title
A308 Operation during PID control start wait
time
0: PID control disabled
1: PID1 enabled
2: PID2 enabled
7-2
E6582112
Function
VF-AS3