Start/Brake Parameter (F2) - Emerson EV1000-2S0004G User Manual

⑥F1.09=50.00Hz; reference frequency corresponds to min.
input.
⑦F1.10=20÷20 × 100%=100.0%, to set the ratio of max.
input of curve 2 (1kHz) to F1.03 (20kHz)
⑧F1.11=5.00Hz, to set the reference frequency
corresponding to max. input.
Output freq.
F1.09=50
F1.11=5
F1.08=5
F0.00=5, F1.00=100, F1.03=20, F7.03=45
Figure 5-10 Frequency Set By Pulse Signal

5.3 Start/Brake Parameter (F2)

F2.00 Start mode
F2.00=0: start at start frequency (F2.01)
The drive is started at start frequency and in preset time
F2.02.
F2.00=1: brake first and then start at start frequency
DC brake first, (refer to F2.03 and F2.04) , and then start in
the manner of F2.00=0.
Note
1. Start mode 1 applies to small-inertia motor when the drive stops,
the motor is still rotating. For large-inertia load, do not restart
until the motor stops.
2. When driving synchronized motor, it is recommended to use
start mode 0.
F2.01 Start frequency
F2.02 Start frequency hold
time
Start frequency refers the frequency at which the drive starts,
as shown in Figure 5-11 as f
refers the time within which the drive runs at start frequency
during startup, as shown in Figure 5-11 as t
Freq. (Hz)
f
max
f
s
t
1
Figure 5-11 Relation of Start Freq. and Start Time
Pulse input
F1.10=100
Range: 0, 1 【 0 】
Range: 0.20~60.00Hz 【 0.50Hz 】
Range: 0.0~10.0s 【 0.0s 】
; start frequency hold time
S
:
1
Time
EV1000 Series General Purpose Variable Speed Drive User Manual
Note
The start frequency is not limited by lower limit of the frequency.
F2.03 DC brake current at
startup
F2.04 DC brake time at
startup
F2.03 and F2.04 are valid only when you set F2.00=1, that is,
braking before starting. See Figure 5-12.
DC brake current at startup is determined by drive model, for
G type: 0~150% of drive's rated current (max. current among
the 3 phases) , P type: 0~130% of drive's rated current (max.
current among the 3 phases) .
If the brake time at startup is set at 0.0s, no brake process.
Output
frequency
Output Braking
energy
voltage
（effective
value）
DC injection
braking time
Running
command
Figure 5-12 Start Mode 1
F2.05 Acc/Dec mode
F2.05=0: linear Acc/Dec
The output frequency increase or decrease according to a
fixed slope, see Figure 5-13.
F2.05=1: S curve Acc/Dec
The output frequency increase or decrease according to S
curve, see Figure 5-14.
F2.05=2: automatic Acc/Dec
The output current of the drive is limited below the current
limiting level according to the load, see FL.07. The Acc/Dec
is done smoothly.
Frequency
f
max
t
1
Figure 5-13 Linear Acc/Dec Curve
Chapter 5 Parameters
Range: depending on model 【 0.0% 】
Range: depending on model 【 0.0s 】
Time
Time
Range: 0, 1, 2 【 0 】
Time
t
2
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