Chapter 5 Parameter Introductions
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to be used and V/F curve should be adjusted according to the motor parameters.
P0.20 Cut-off point used for manual
torque boost
Range: 0.00
～
50.00Hz
【
16.67 Hz
】
Note:
P0.20 defines the cut-off frequency used for manual torque boost to the basic frequency
(defined by P0.19), as shown in Fig. 5-0-4. This cut-off frequency is valid for any V/F
curve defined by P0.12.
P0.21 Acc time1
Range: 0.1
～
3600s
【
6.0s/20.0s
】
P0.22 Dec time1
Range: 0.1
～
3600s
【
6.0s/20.0s
】
Note:
◆
Acc time: Acc time is the time taken for the ac drive to accelerate from 0Hz to the
maximum frequency. Dec time is the time taken for the motor to decelerate from
maximum frequency.
◆
This series ac drive has defined 4 kinds of Acc/Dec time. Here, only Acc/Dec time 1 is
defined, and Acc/Dec time 2~4 can be defined in P2.18
～
P2.23. You can select
different Acc/Dec time by external terminal according to your demand. In addition,
you can select different Acc/Dec time in PLC operation.
5.2 Start/Stop Control (Group P1)
P1.00 Start mode
Range: 0
～
2
【
0
】
0: Start directly
1: Brake First and then start at start frequency
2: Speed tracking restart (It is only effective for the motor of 35R5GB/37R5PB or
above)
Note:
◆
Start directly: Speeds up from zero-speed and accelerate to the preset frequency
within the preset Acc time.
◆
Brake first and then start: Ac drive adds some DC injection braking power to load first,
and then startup. As shown in Fig. 5-1-1. Starting mode 1 is suitable for small inertia
load which is running forward or reverse while the ac drive is in stop state, such as fan
load.DC injection braking parameters refer to P1.03 and P1.04.
