Alpha 6000S series User Manual page 96

upper limit frequency, and not less than the lower limit frequency. This function is commonly used to ensure
that the motor operates at the allowable frequency in order to avoid misoperation or accidents of mechanical
system or inverter caused by unintended causes. It is particularly applicable to occasions preventing
low-speed or overspeed running (see P2.04).

Upper limit frequency offset: When the upper limit frequency source is an analog set point, the parameter is
used as the analog offset. Its benchmark is P0.12. Bias frequency is applied to the analog frequency set point
as the set point of the final upper limit frequency. When the upper limit frequency source is the digital set
point, offset plus upper limit set frequency is the set point of the final upper limit frequency.

The maximum output voltage is the corresponding voltage when the inverter outputs fundamental frequency,
it is usually the rated input voltage specified on the motor nameplate.
P0.17 Step length of digital
encoder regulation
Notes:
This parameter is only active for the online adjustment of the set frequency and the set speed in monitoring state;

When the function code is set to 0, and the keypad knob is integral regulation mode, which means rotating the
knob continuously and keeping the rotation speed can increase the adjustment step width gradually from 1 to
10, from 10 to 100, and up to 100 (maximum);

When the function code is not set to 0, it is the Cut-to-length regulation mode. The set value is the
corresponding variation of the set frequency/speed when rotating the knob for one position, which means the
adjustment amount of set frequency / speed when rotating the knob for one position is (P0.17 × 30) ×
(0.01Hz/1rpm).

When the adjustment object is the set frequency, the unit of P0.17 is 0.01Hz; when the adjustment object is
the set speed, in general operating mode, the unit of P0.17 is (6 ÷ (5 × motor poles)) rpm, in digital PID
mode, the unit of P0.17 is 1rpm;
Example:
In general operating mode, in the adjustable range of the frequency, when P0.17 = 100, when rotating the knob on
the keypad for one circle, the set frequency increases or decreases 30.00Hz, the speed increases or decreases 900rpm;
when P0.17 = 10, then the set frequency and the speed increase or decrease 3.00Hz and 90rpm respectively. In
digital PID operation mode, when P0.17 = 10, the speed increases or decreases 300rpm while rotating the knob on
the keypad for a circle;
P0.18 Acc time1
P0.19 Dec time1
Notes:

Acceleration time: The time that the inverter speed rises from null speed up to the maximum frequency.
Deceleration time: The time that the inverter speed decelerates from the maximum frequency to null speed.

This series of inverter defines four groups acceleration and deceleration time (the others see P2.28 ~ P2.33),
user can select different acceleration and deceleration time through external terminals according to the needs,
or can select different acceleration and deceleration time during the program timing run.

the default units of acceleration and deceleration time is s, the acceleration and deceleration time can be
reduced or enlarged to 10 times by modifying P2.35 acceleration and deceleration time multiplying factor.
5.2 Start/Stop Control (Group P1)
P1.00 Start mode
0: Start directly:
2: Rotating speed tracking
Notes:
 Start directly: Speeds up from zero-speed and accelerate to the preset frequency within the preset Acc time.
95
Setting range:0~250×(0.01Hz/1rpm) [50]
Setting range: 0.1~3600s [6.0s/20.0s]
Setting range: 0.1~3600s [6.0s/20.0s]
Setting range:: 0~2 [0]
1: Brake first and then start
Chapter 5 Detailed Function Introductions