Auxiliary Operating Parameters (F3) - Emerson EV1000-2S0004G User Manual

28 Chapter 5 Parameters
Frequency
f
max
3
2
1
t
1
Figure 5-14 Acc/Dec S Curve
f
Acceleration
Figure 5-15 Auto Acc/Dec
Note
In auto Acc/Dec mode, the Acc/Dec time (F0.10, F0.11,
F3.17~F3.22) becomes invalid.
F2.06 S curve start time
F2.07 S curve rising time
F2.06 and F2.07 are valid only when F2.05=1 (S curve mode)
and F2.06+F2.07 ≤ 90%.
S curve start time is illustrated in Figure 5-14 as ①, the
change rate of output frequency is increasing from 0.
S curve rising time is illustrated in Figure 5-14 as ②, the
change rate remains the same.
S curve end time is illustrated in Figure 5-14 as ③. The
change rate decreases to 0.
S curve Acc/Dec is suitable to the start and stop of elevetor,
conveyer, etc.
F2.08 Stop mode
0: decelerate to stop
When the drive receives Stop command, it will reduce output
frequency to zero and stop within preset deceleration time.
1. Coast to stop
When the drive receives Stop command, it will stop
outputting frequency and stop gradually relying on load
inertia.
2: Deceleration+DC braking
When the drive receives Stop command, it will reduce output
frequency within preset Dec time. When it arrives at the
frequency threshold of DC braking, the DC braking begins.
Please refer to F2.09~F2.12.
F2.09 Frequency threshold of
DC brake
F2.10 DC brake delay time
F2.11 DC brake current
3
2
1
Time
t
2
t
Deceleration
Range: 10~50% 【 20.0% 】
Range: 10~80% 【 60.0% 】
Range: 0, 1, 2 【 0 】
Range: 0.00~60.00Hz 【 0.00Hz 】
Range: 0.00~10.00s 【 0.00s 】
Range: Depending on model
EV1000 Series General Purpose Variable Speed Drive User Manual
F2.12 DC brake time at stop
DC braking delay time is the period from arriving at
frequency threshold (F2.09) to starting braking.
During the period, there is no output from the drive. This
function can prevent current overshoot of high power motor
at startup.
The braking current is different depending on drive's model,
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 stop is set at 0.0s, there is no braking
process.
Output Freq.
Output
volt
（RMS value）
Operating
command
Figure 5-15 Deceleration +DC braking Process
F2.13 Dynamic braking
0: disabled
1: enabled
Note
Please set this parameter properly according to your needs,
otherwise, the control performance will be suffered.
F2.14 Ration of braking time
to total operating time
The max. continuous dynamic braking time is calculated with
100s as a cycle.
Note
The resistance and power of the braking resistor should be
considered.
5.4 Auxiliary Operating Parameters
(F3)
F3.00 Anti-reverse setting
0: reverse allowed
1: reverse not allowed
【 0.0% 】
Range: Depending on model 【 0.0s 】
Initial Freq.of braking
Waiting time
Braking
Energy
Braking time
Range: 0, 1 【 0 】
Range: 0.0~100.0% 【 2.0% 】
Range: 0, 1 【 0 】