Yaskawa iQpump Micro Manuel d'utilisateur télécharger pdf (Page 128)

b5-03: Integral Time Setting (I)

Sets the time constant used to calculate the integral of the PID input. The shorter the integral time set to b5-03, the faster the

offset will be eliminated. If the integral time is set too short, however, overshoot or oscillation may occur. To turn off the

integral time, set b5-03 to 0.00.

No. Name Setting Range Default

b5-03 Integral Time Setting (I) 0.0 to 360.0 s 1.0 s

b5-09: PID Output Level Selection

Reverses the sign of the PID controller output signal. Normally a positive PID input (feedback smaller than setpoint) leads to

positive PID output.

No. Parameter Name Setting Range Default

b5-09 PID Output Level Selection 0, 1 0

Setting 0: Direct Acting

A positive PID input causes an increase in the PID output (direct acting).

Setting 1: Inverse Acting

A positive PID input causes a decrease in the PID output (reverse acting).

b5-39: PID System Units Display Digits

Determines the number of digits for the user-defined display for the PID setpoint (Q1-oo) and PID feedback monitors (U5-01,

U5-04). The setting value is equal to the number of decimal places.

No. Name Setting Range Default

b5-39 PID System Units Display Digits 0 to 3 1

Setting 0: No Decimal Places

Setting 1: One Decimal Place

Setting 2: Two Decimal Places

Setting 3: Three Decimal Places

C1-01 to C1-04: Accel, Decel Times 1 and 2

Two different sets of acceleration and deceleration times can be set in the drive by digital inputs, motor selection, or switched

automatically.

Acceleration time parameters always set the time to accelerate from 0 Hz to the maximum output frequency (E1-04).

Deceleration time parameters always set the time to decelerate from maximum output frequency to 0 Hz. C1-01 and C1-02

are the default active accel/decel settings.

No. Parameter Name Setting Range Default

C1-01 Acceleration Time 1

0.0 to 6000.0 s

<1>

20.0 s

C1-02 Deceleration Time 1

10.0 sC1-03 Acceleration Time 2

C1-04 Deceleration Time 2

<1> The setting range for the acceleration and deceleration times is determined by the accel/decel time setting units in C1-10. For example, if the time

is set in units of 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.

Switching Acceleration Times by Digital Input

Accel/decel time 1 is active by default if no input is set. Activate accel/decel times 2, 3, and 4 by digital inputs

(H1-oo = 7 and 1A) as explained in Table 4.18.

Table 4.18 Accel/Decel Time Selection by Digital Input

Accel/Decel Time Sel. 1

H1-oo = 7

Accel/Decel Time Sel. 2

H1-oo = 1A

Active Times

Acceleration Deceleration

0 0 C1-01 C1-02

1 0 C1-03 C1-04

4.8 Detailed iQpump Parameter Descriptions

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