Close-Loop Control (F5) - Emerson EV1000-2S0004G User Manual

32 Chapter 5 Parameters
2: Start from the frequency where it stops
When the drive stops caused by Stop command or fault, it
can record both the time it has undergone in the current
stage and the very frequency when the drive stops. It will
pick up the recorded frequency and run for the remaining
time of the stage. See Figure 5-26.
f
Output freq. Hz
1
a
1
...
Operating
Stage 1
time of
stage 2
a
: Acc time of stage 1
1
a
: Acc time of stage 3
3
f
: Freq. of stage 1
1
f
: Freq. of stage 3
3
Figure 5-26 PLC Start Mode 2
Note
The difference between PLC start mode 1 and mode 2 is that in
mode 2, the drive can record the operating frequency when the
drive stops and continue to operate at the recorded frequency after
restart.
Hundred's place of F4.00: Save PLC state after poweroff
0: not save
The PLC state will not be saved when poweroff, and the
drive will start from the first stage after powerup.
1: save
The PLC state, including the stage, frequency, run time will
be saved when poweroff, and the drive will start according to
the setting of ten's place of F4.00 after powerup.
Thousand's place: Selection of time unit
0: Second
1: Minute
This unit is only valid for defining the PLC operating time.
The unit of Acc/Dec time in PLC operation is determined by
F9.09.
Note
1. A stage is ineffective if its run time is set to 0.
2. You can use terminals to pause and disable PLC operation, and
clear the memorized parameters. See F7 parameters.
Range: 000~323 【000】
F4.01 Stage 1 setting
Range: 0~6500s (min) 【 20.0s 】
F4.02 Stage 1 run time
Range: 000~323 【 000 】
F4.03 Stage 2 setting
Range: 0~6500s (min) 【 20.0s 】
F4.04 Stage 2 run time
Range: 000~323 【000】
F4.05 Stage 3 setting
Range: 0~6500s (min) 【 20.0s 】
F4.06 Stage 3 run time
Range: 000~323 【 000 】
F4.07 Stage 4 setting
Range: 0~6500s (min) 【 20.0s 】
F4.08 Stage 4 run time
Range: 000~323 【 000 】
F4.09 Stage 5 setting
Range: 0~6500s (min) 【 20.0s 】
F4.10 Stage 5 run time
Stopping signal
d
2
d
a
2 a
2 f
3
2
Remnant time of
stage 2
a
: Acc time of stage 2
2
a
: Dec time of stage 2
2
f
: Freq. of stage 2
2
EV1000 Series General Purpose Variable Speed Drive User Manual
F4.11 Stage 6 setting
F4.12 Stage 6 run time
F4.13 Stage 7 setting
F4.14 Stage 7 run time
F4.01, F4.03, F4.05, F4.07, F4.09, F4.11 and F4.13 are to
set frequency, direction, Acc/Dec time of PLC stages. See
Figure 5-27:
T
f
3
...
Time
Figure 5-27 PLC Stage i setting (i=1~7)
One's place:
0: select MS frequency i, e.g. i=3, means the frequency for
stage 3 is MS frequency 3, see F3.23~F3.29.
1: the frequency is determined by F0.00
2: MS close loop setting I, e.g. i=2, the frequency of stage 2
is MS close loop setting 2. See F5.20~F5.26.
3: Determined by F5.01.
PLC can realize close-loop operation in a certain stage.
Close-loop reference selectors can be preset close-loop
reference I or determined by parameter F5.01; and the
feedback is determined by F5.02. When the setting method
is determined by F5.01, the terminals can be selected via
close-loop input. See F7.00~F7.07 and F5.20~F5.26 for
details
Note
When the PLC operating direction is determined by operating
commands, the motor's operating direction can be changed by
external command. For example, Running forward can be ordered
by terminal FWD-COM. The direction is decided by running
command and if it cannot be determined, the drive will runs in the
direction of last operating stage.

5.6 Close-loop Control (F5)

Usually, the close loop control can be divided into two types:
analog close loop and pulse close loop according to
feedback. Figure 5-28 and Figure 5-29 are analog and pulse
close loop control wiring diagram.
Range: 000~323 【000】
Range: 0~6500s (min) 【 20.0s 】
Range: 000~323 【000】
Range: 0~6500s (min) 【 20.0s 】
H
Ten One
Frequency setting
0: Preset frequency i
1: Determined by F0.00
2: Preset close-loop reference i
3: Determined by F5.01
Running direction selection
0: Forward
1: Reverse
2: Determined by running
command
Acc/Dec time selection
0: Acc/Dec 1
1: Acc/Dec 2
2: Acc/Dec 3
3: Acc/Dec 4
Reserved