Скачать или смотреть VFD Analog input Yaskawa v1000 අමතක නොවෙන්නම

Wiring the Potentiometer and Control Switch

According to user guidance:

Use a 2 kΩ potentiometer (values from about 2 k to 20 kΩ are acceptable)
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Wire as follows:

+V terminal of the drive → one end of the potentiometer (CW).

AC (common or 0 V) → the other end (CCW).

A1 → potentiometer wiper.

For direction control (Forward/Reverse):

Use an SPDT switch: SC to common (center); S1 for forward/run; S2 for reverse/run
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This gives you analog speed control via the pot, and digital Run commands via the switch inputs.

Configuring Drive Parameters

Once wired correctly, adjust V1000 drive parameters to enable external control:

Set this parameters

b1-01 = 1 (control method analog input)
b1-02 = 1 (run method digital input)
c1-01 = 10s (acceleration time)
c1-02 = 10s (deceleration time)

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Prime gain and bias settings to ensure the full pot range maps correctly:

Parameters H3‑03 (gain) and H3‑04 (bias) adjust how the analog input scale maps to frequency.

For example, setting bias to 25% will make the pot's full CCW correspond to 25% of max frequency, with gain scaling from there

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Common Tips from Practitioners

Ensure the potentiometer is linear taper, not audio (logarithmic). Log taper can make full-range control feel cramped into a small rotation
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Use shielded cable, with the shield grounded only at the drive side, to reduce interference
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Double-check wiring: wiper to A1; ends to +V and AC; reversing ends swaps pot direction
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Pot values much higher than recommended may lead to noisy or improper readings; the drive may specify a max impedance (e.g., 5 kΩ)
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If using the VFD's front-panel pot, ensure no jumper (like J1) is still bridging internal pot sources that conflict with your external wiring
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Summary Table
Task What to Do / Check

Wiring

+V → Pot end
AC → Pot end
A1 → Wiper
SC → Com
S1 → for run digital input
S2 → rev run digital input

Parameter Settings
H3‑03 = gain
H3‑04 = bias

Pot Type Use linear taper, recommended 2 kΩ–20 kΩ
Shielding Use shielded cables; ground shield only at drive side
Internal Conflicts Remove front-pot jumper if using external pot
Example Setup Steps

Wire your pot and direction switch as described.

Set B1-01 = 01 to specify analog speed reference mode.

Tune H3‑03 (gain) and H3‑04 (bias) to align the pot’s full sweep with the desired speed range.

Test operation; adjust parameters if the motor starts before full pot rotation or doesn’t hit full speed.

Verify pot type and wiring if control feels “off” (too sensitive or reversed).

Shield and ground properly to avoid noise; remove internal pot jumper if one exists.



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