Zelmer vacuum cleaner, commutator motor - soft start connection

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#1 16770251 21 Oct 2017 18:19

Anonymous Anonymous

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Post #1
16770251 21 Oct 2017 18:19

Zelmer vacuum cleaner how to connect the soft start?
Vacuum Cleaner Model: missing - sticker torn off
Color of the vacuum cleaner: red
Engine model : S-690
Vacuum Cleaner Power: 1000W
Year of production: January 2006 (date stamped on the engine)

Sketch of the vacuum cleaner scheme:

Soft start cube:

In front of the anti-interference capacitor or behind?

Please help.
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#2 16770277 21 Oct 2017 18:34

Pedros050 Pedros050

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Post #2
16770277 21 Oct 2017 18:34

Hello. Ie. soft start of the engine very simply, connect the black one to the engine power cord
red for the switch together with the 2nd power cord for the motor with the switch and blue also for the power switch. And we plug in the capacitor together with the red and blue ones.
#3 16770310 21 Oct 2017 18:51

Anonymous Anonymous

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Post #3
16770310 21 Oct 2017 18:51

So I have to connect a soft start before or after the anti-interference capacitor?

I think so:

or yes:
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#4 16770328 21 Oct 2017 18:58

Pedros050 Pedros050

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Post #4
16770328 21 Oct 2017 18:58

Connect upstream of the anti-interference suppression capacitor.
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#5 16770371 21 Oct 2017 19:22

Anonymous Anonymous

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Post #5
16770371 21 Oct 2017 19:22

[quote = "Mati22Q"]
PITERRR wrote:
Connect upstream of the anti-interference suppression capacitor.

so I should understand this:

EDIT:

Thank you for your help.

Added after 14 [minutes]:

And why did the mixer manufacturer connect like this ?:

mixer:

I stole the photo from this topic: https://www.elektroda.pl/rtvforum/topic997208.html
Photo author: phanick (https://www.elektroda.pl/rtvforum/uzytkownik477757.html)

schematic sketch:

after all, soft start is also made on a triac.
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#6 16770382 21 Oct 2017 19:27

Pedros050 Pedros050

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Post #6
16770382 21 Oct 2017 19:27

Here in this photo you have a speed controller so the manufacturer installed it.
#7 16770385 21 Oct 2017 19:30

Anonymous Anonymous

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Post #7
16770385 21 Oct 2017 19:30

PITERRR wrote:
Here in this photo you have a speed controller so the manufacturer installed it.

but this regulator also sows interference?
#8 16770392 21 Oct 2017 19:33

Pedros050 Pedros050

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Post #8
16770392 21 Oct 2017 19:33

Interference suppression capacitors
In systems generating disturbances related to fast surges of the consumed current (such as electric motors, magnetos, thyristor control systems), capacitors are filter elements limiting the penetration of disturbances into the power grid (see the quality of electricity) and the formation of radio interference. Interference suppression capacitors usually have low resistance and inductance of the leads as well as high breakdown voltage, they should allow the flow of current of high instantaneous value.
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#9 16770394 21 Oct 2017 19:36

Anonymous Anonymous

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Post #9
16770394 21 Oct 2017 19:36

PITERRR wrote:
Interference suppression capacitors
In systems generating disturbances related to fast surges of the consumed current (such as electric motors, magnetos, thyristor control systems), capacitors are filter elements limiting the penetration of disturbances into the power grid (see the quality of electricity) and the formation of radio interference. Interference suppression capacitors usually have low resistance and inductance of the leads as well as high breakdown voltage, they should allow the flow of current of high instantaneous value.

So in this mixer, the producer made a mistake by installing the regulator behind the filter?
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#10 16770403 21 Oct 2017 19:42

Pedros050 Pedros050

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Post #10
16770403 21 Oct 2017 19:42

There would be no electric saliva, a household appliance mixer creates disturbances in the power grid.
#11 16770436 21 Oct 2017 19:56

Anonymous Anonymous

Anonymous

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Post #11
16770436 21 Oct 2017 19:56

PITERRR wrote:
There would be no electric saliva, a household appliance mixer creates disturbances in the power grid.

we don't understand each other?
I am returning once again to post 5

schematic sketch:

here the manufacturer will connect the anti-interference filter to the regulator

in my opinion, this anti-interference filter in the mixer should be connected before the PWM speed controller

Why so?
#12 16770438 21 Oct 2017 19:57

Pedros050 Pedros050

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Post #12
16770438 21 Oct 2017 19:57

Because the noise is coming from the engine. And that's how it should be.
#13 16770445 21 Oct 2017 20:00

Anonymous Anonymous

Anonymous

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Post #13
16770445 21 Oct 2017 20:00

and the regulator on the triac or the soft start cube does not disturb the network?

So if I would connect a soft star in this way, it would also be good? (I'm asking out of curiosity)

Sory that I ask so many questions but I want to understand.
#14 16770461 21 Oct 2017 20:09

Pedros050 Pedros050

Level 43

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Post #14
16770461 21 Oct 2017 20:09

I think that the anti-interference capacitor will work before or after.
#15 16770476 21 Oct 2017 20:13

Anonymous Anonymous

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Post #15
16770476 21 Oct 2017 20:13

PITERRR wrote:
I think that the anti-interference capacitor will work before or after.

I think? so you are not sure about the advice given?

In that case, I will wait for comments from other users before assembling the vacuum cleaner.
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Topic summary

✨ The discussion revolves around connecting a soft start mechanism to a Zelmer vacuum cleaner with a commutator motor (model S-690, 1000W, produced in January 2006). The user seeks guidance on whether to connect the soft start before or after the anti-interference capacitor. Responses indicate that the soft start should be connected upstream of the capacitor to minimize electrical interference. The conversation also touches on the implications of connecting speed controllers and interference suppression capacitors in relation to motor noise and electrical disturbances.
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FAQ

TL;DR: For a 1000 W S-690 motor, place the soft‑start before the EMI capacitor; "Connect upstream of the anti‑interference suppression capacitor." [Elektroda, Pedros050, post #16770328]

Why it matters: This avoids harsh inrush current while keeping radio‑noise filtering effective in Zelmer-style commutator motors.

Quick facts:

Motor noted in thread: S‑690, 1000 W, built January 2006. [Elektroda, 3027543, post #16770251]
Soft‑start wiring callouts: black→motor lead; red→switch plus motor lead; blue→switch; EMI capacitor joins red and blue. [Elektroda, Pedros050, post #16770277]
Recommended placement: soft‑start upstream of the interference‑suppression capacitor. [Elektroda, Pedros050, post #16770328]
Mixer photo shows a speed controller module, not just a soft‑start. [Elektroda, Pedros050, post #16770382]
EMI capacitors curb disturbances from motors and thyristor/triac controls. [Elektroda, Pedros050, post #16770392]

Quick Facts

Motor noted in thread: S‑690, 1000 W, built January 2006. [Elektroda, 3027543, post #16770251]
Soft‑start wiring callouts: black→motor lead; red→switch plus motor lead; blue→switch; EMI capacitor joins red and blue. [Elektroda, Pedros050, post #16770277]
Recommended placement: soft‑start upstream of the interference‑suppression capacitor. [Elektroda, Pedros050, post #16770328]
Mixer photo shows a speed controller module, not just a soft‑start. [Elektroda, Pedros050, post #16770382]
EMI capacitors curb disturbances from motors and thyristor/triac controls. [Elektroda, Pedros050, post #16770392]

Where should I place the soft-start: before or after the EMI (anti-interference) capacitor?

Place the soft‑start upstream of the EMI capacitor. This puts the filter closer to the mains and keeps the inrush tamed before the filter. It mirrors the guidance given in the thread’s accepted advice. “Connect upstream of the anti‑interference suppression capacitor.” [Elektroda, Pedros050, post #16770328]

How do I wire the soft-start module on a Zelmer S‑690 motor?

Follow the color cues from the thread sketch. Connect black to the motor power lead. Connect red to the switch together with the second motor lead. Connect blue to the switch. Tie the EMI capacitor across the red and blue switch connections. Keep leads short. [Elektroda, Pedros050, post #16770277]

Is there a quick 3‑step procedure I can follow?

Route mains through the switch, then into the soft‑start input.
Connect soft‑start output (black) to the motor lead; return motor lead joins the switch (red).
Install the EMI capacitor across the red and blue switch terminals. Verify insulation and strain relief. [Elektroda, Pedros050, post #16770277]

Why do some mixers put the EMI filter after a speed controller?

Because the noise source is the motor and its controller. Placing the filter adjacent to that source helps shunt high‑frequency disturbances before they reach the mains. “Because the noise is coming from the engine.” [Elektroda, Pedros050, post #16770438]

Does a triac soft-start or speed controller add electrical noise to the mains?

Yes. Thyristor/triac control systems generate fast current changes that create electromagnetic interference. An EMI capacitor or filter helps contain it. Use proper class components and short leads to reduce emissions. [Elektroda, Pedros050, post #16770392]

Can I connect the soft-start after the EMI capacitor instead?

It will still operate and the cleaner will run. However, noise suppression differs with placement. The thread notes the EMI capacitor works before or after, though best practice favors filtering near the noise source. [Elektroda, Pedros050, post #16770461]

What did the mixer photo actually show—soft-start or speed control?

It showed a speed controller module, not only a soft‑start. That explains the wiring choice around the EMI filter in that appliance photo. [Elektroda, Pedros050, post #16770382]

Is a soft-start for this vacuum typically triac-based?

Yes. The discussion confirms the soft‑start is made on a triac, which ramps conduction to soften startup. This matches common appliance modules. [Elektroda, 3027543, post #16770371]

What if my model sticker is missing—how can I still proceed?

Use the motor label and power rating to guide wiring. The thread unit had an S‑690 motor, 1000 W, produced January 2006. Soft‑start placement and wiring notes still apply. [Elektroda, 3027543, post #16770251]

Do I need any special components for the EMI capacitor?

Use interference‑suppression‑rated capacitors suitable for mains. They must tolerate high pulse currents and low inductance. This keeps radio noise down during motor and triac switching. [Elektroda, Pedros050, post #16770392]

Why tie the EMI capacitor across the red and blue switch terminals?

That position places the capacitor across the switched line, damping spikes when the switch and controller operate. It also aligns with the thread’s wiring guidance. [Elektroda, Pedros050, post #16770277]

Where can I see reference sketches for these connections?

The thread includes hand sketches showing soft‑start placement options relative to the capacitor and motor. Use them to visualize the two variants. [Elektroda, 3027543, post #16770310]

Will incorrect placement damage the motor or module?

Edge case: Miswiring the soft‑start across mains or the capacitor directly to the motor brush leads can blow the module at power‑on. Double‑check the upstream placement and switch connections first. [Elektroda, Pedros050, post #16770328]

What’s the practical benefit of soft-start on a 1000 W cleaner?

It reduces inrush and brush sparking at power‑on, easing stress on the switch and brushes. The referenced unit is 1000 W, so the effect is noticeable on lights and breakers. [Elektroda, 3027543, post #16770251]

Does placing the filter nearer the controller help compliance?

Yes. Locating suppression at the disturbance source improves conducted‑emission control from thyristor systems. It aligns with the mixer’s layout explained in the thread. [Elektroda, Pedros050, post #16770438]

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