Predictika · Motion control

An AI sales agent's servo gearmotor, checked before it goes out

An AI sales agent selects a PS.C planetary servo gear unit with a CMP servomotor for a machine builder: the gear unit and ratio, the motor, the peak and continuous torque the axis needs, the emergency stop torque, the output speed, the loads on the output shaft, the backlash the application allows, and the drive mass it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the combination tables and limits in SEW-EURODRIVE's public catalog and returns a verdict, every reason and the figures it computed.

Scope: PS.C servo planetary gear units (sizes 2, 3, 5 and 6, one and two stages) mounted directly to CMP servomotors: published ratios, combination fields, torque, speed, load and backlash limits, and mass. See everything this validator covers

This validator models one PS.C gear unit directly mounted to one CMP servomotor, based on the tables in the public SEW-EURODRIVE catalog Servo Gearmotors (PS.C gear units with DS, CM and CMP motors, edition 02/2009), not just the scenarios shown below.

  • Published ratios and combination fields — the gear unit (PSC221 to PSC622) must offer the chosen ratio, and the CMP motor must be in a gray field of that gear unit and ratio in the catalog's combination table. A white field means the combination is not possible; a light gray field is one the catalog says to confirm with SEW-EURODRIVE, which goes to a person.
  • Torque — the peak output torque the axis needs against what the gear unit and motor give (the table value where the motor limits it, otherwise the gear unit's short-time limit), the continuous torque against the continuous-duty limit, and the emergency stop torque against the gear unit's emergency stop limit.
  • Speed and loads — the input speed that the output speed and ratio require against the maximum permitted input speed, and the continuous and peak overhung loads at the output shaft against the permitted values.
  • Backlash, mass and conditions — the circumferential backlash against what the application allows, the drive mass the quote states against the catalog mass of the gear unit with that motor, and the catalog's ambient temperature range (-20 to +40 degrees Celsius) and altitude limit (1000 m), outside which the catalog says to contact SEW-EURODRIVE.

Any PS.C and CMP selection that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (the catalog has none, so this page shows no price build-up), DS and CM motors, ECH and EPH adapters, motor options such as brakes and encoders, the duty-cycle calculation behind the torque figures, and any product or edition other than the one named.

The AI sales agentSelects the gear unit and motor from the application data and says the selection is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Only the gear unit, ratio and motor combinations the catalog tables mark as possibleOnly with workarounds
The combination tables have a field for every gear unit, ratio and motor, shaded to say preferred, to confirm, or not possible. A rules-based CPQ needs a compatibility table or one rule per field, and an edition change means editing all of them.		Gear unit, ratio and motor arrive in one request and are matched to the table on every call; a light gray field goes to a person.
Torque available from the motor and the gear unit togetherOnly with care
The peak torque is the motor-limited table value in some fields and the gear unit limit in others, and it is then compared with the need, next to the continuous and emergency stop limits for the same ratio.		The available torque, the three torque limits and the comparisons are computed on every call.
Input speed from the output speed and the ratioOnly with care
The input speed is a product of two choices and is compared with a limit that depends on the gear unit size.		The product and the comparison are done on every call, in any order the choices arrive.
Drive mass the quote statesOnly with care
The catalog mass depends on both the gear unit and the motor, so a rule has to look it up and compare it with the stated figure.		The stated mass is a field in the request, compared with the catalog mass on every call.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The catalog tables list no ratio of 12 for this gear unit.
2The catalog tables list no ratio of 3 for this gear unit.
3The catalog marks this gear unit, ratio and CMP motor as not possible together (white field in its combination table).
4The catalog marks this combination as one to confirm with SEW-EURODRIVE (light gray field); a person should do that before the quote goes out.
5The application needs a peak output torque of 27 Nm; this gear unit and motor give at most 26 Nm.
6The application needs a peak output torque of 92 Nm; this gear unit and motor give at most 91 Nm.
7The application needs 75 Nm of continuous output torque; the gear unit allows 74 Nm for continuous duty.
8The emergency stop torque of 137 Nm exceeds the gear unit limit of 136 Nm.
9The required output speed gives an input speed of 6505 rpm; the gear unit allows at most 6500 rpm for short-time duty.
10The continuous overhung load of 2031 N exceeds the permitted 2030 N at the output shaft.
11The peak overhung load of 4001 N exceeds the permitted 4000 N at the output shaft.
12The gear unit has 15 arcmin of circumferential backlash; the application allows at most 14.
13The quote states a drive mass of 7300 g; the catalog mass of the gear unit with this motor is 9200 g.
14The ambient temperature of 41 degrees Celsius is outside the -20 to +40 range the catalog gives; the catalog says to contact SEW-EURODRIVE.
15The ambient temperature of -21 degrees Celsius is outside the -20 to +40 range the catalog gives; the catalog says to contact SEW-EURODRIVE.
16The installation altitude of 1001 m is above the 1000 m the catalog gives; the catalog says to contact SEW-EURODRIVE.
17The application needs a peak output torque of 300 Nm; this gear unit and motor give at most 223 Nm.
18The application needs 200 Nm of continuous output torque; the gear unit allows 181 Nm for continuous duty.
19The emergency stop torque of 400 Nm exceeds the gear unit limit of 334 Nm.
20The required output speed gives an input speed of 7500 rpm; the gear unit allows at most 6000 rpm for short-time duty.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Motor field and peak torque: A PSC221 with a CMP40M for a pick-and-place axis

    
The agent's request. Please quote a PSC221 servo gear unit with ratio 5 and a CMP40M motor for an axis that needs 21 Nm of peak torque, 12 Nm continuously and 40 Nm in an emergency stop, at 200 rpm at the output. The output shaft carries 800 N continuously and 1,200 N at peak, and the application allows 10 arcmin of backlash. The installation is at 0 m above sea level and 25 degrees Celsius. The quote states a drive mass of 3,200 g. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Peak torque above what the drive can deliver. The application needs a peak output torque of 21 Nm; this gear unit and motor give at most 19 Nm.
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  • Combination to confirm with SEW-EURODRIVE. The catalog marks this combination as one to confirm with SEW-EURODRIVE (light gray field); a person should do that before the quote goes out.
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2. Motor field and peak torque: The agent resubmits after fixing the errors

    
The agent's request. Please quote a PSC221 servo gear unit with ratio 5 and a CMP50S motor for an axis that needs 21 Nm of peak torque, 12 Nm continuously and 40 Nm in an emergency stop, at 200 rpm at the output. The output shaft carries 800 N continuously and 1,200 N at peak, and the application allows 10 arcmin of backlash. The installation is at 0 m above sea level and 25 degrees Celsius. The quote states a drive mass of 4,000 g. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Drive summary. The gear unit with this motor weighs 4000 g in total, has 10 arcmin of backlash, gives 26 Nm of peak output torque and allows 34 Nm continuously.
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3. Ratio and motor combination: A PSC321 at ratio 10 with a CMP63M for a packaging infeed

    
The agent's request. Please quote a PSC321 servo gear unit with ratio 10 and a CMP63M motor for an axis that needs 60 Nm of peak torque, 40 Nm continuously and 100 Nm in an emergency stop, at 300 rpm at the output. The output shaft carries 1,500 N continuously and 3,000 N at peak, and the application allows 10 arcmin of backlash. The installation is at 0 m above sea level and 25 degrees Celsius. The quote states a drive mass of not stated g. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Motor does not combine with this gear unit and ratio. The catalog marks this gear unit, ratio and CMP motor as not possible together (white field in its combination table).
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4. Ratio and motor combination: The agent resubmits after fixing the errors

    
The agent's request. Please quote a PSC321 servo gear unit with ratio 10 and a CMP63S motor for an axis that needs 60 Nm of peak torque, 40 Nm continuously and 100 Nm in an emergency stop, at 300 rpm at the output. The output shaft carries 1,500 N continuously and 3,000 N at peak, and the application allows 10 arcmin of backlash. The installation is at 0 m above sea level and 25 degrees Celsius. The quote states a drive mass of 7,800 g. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Drive summary. The gear unit with this motor weighs 7800 g in total, has 10 arcmin of backlash, gives 81 Nm of peak output torque and allows 66 Nm continuously.
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5. Speed, shaft loads and site altitude: A PSC522 at ratio 25 for a heavy conveyor at 1200 m

    
The agent's request. Please quote a PSC522 servo gear unit with ratio 25 and a CMP63M motor for an axis that needs 150 Nm of peak torque, 100 Nm continuously and 250 Nm in an emergency stop, at 300 rpm at the output. The output shaft carries 5,500 N continuously and 7,000 N at peak, and the application allows 15 arcmin of backlash. The installation is at 1,200 m above sea level and 25 degrees Celsius. The quote states a drive mass of 16,000 g. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Input speed above the permitted maximum. The required output speed gives an input speed of 7500 rpm; the gear unit allows at most 6000 rpm for short-time duty.
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  • Overhung load above the short-time limit. The peak overhung load of 7000 N exceeds the permitted 6750 N at the output shaft.
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  • Altitude above 1000 m. The installation altitude of 1200 m is above the 1000 m the catalog gives; the catalog says to contact SEW-EURODRIVE.
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6. Speed, shaft loads and site altitude: The agent resubmits after fixing the errors

    
The agent's request. Please quote a PSC522 servo gear unit with ratio 15 and a CMP63M motor for an axis that needs 150 Nm of peak torque, 100 Nm continuously and 250 Nm in an emergency stop, at 300 rpm at the output. The output shaft carries 4,900 N continuously and 6,500 N at peak, and the application allows 15 arcmin of backlash. The installation is at 1,200 m above sea level and 25 degrees Celsius. The quote states a drive mass of 16,000 g. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Altitude above 1000 m. The installation altitude of 1200 m is above the 1000 m the catalog gives; the catalog says to contact SEW-EURODRIVE.
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  • Drive summary. The gear unit with this motor weighs 16,000 g in total, has 15 arcmin of backlash, gives 203 Nm of peak output torque and allows 147 Nm continuously.
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7. Speed, shaft loads and site altitude: The agent resubmits after fixing the errors

    
The agent's request. Please quote a PSC522 servo gear unit with ratio 15 and a CMP63M motor for an axis that needs 150 Nm of peak torque, 100 Nm continuously and 250 Nm in an emergency stop, at 300 rpm at the output. The output shaft carries 4,900 N continuously and 6,500 N at peak, and the application allows 15 arcmin of backlash. The installation is at 950 m above sea level and 25 degrees Celsius. The quote states a drive mass of 16,000 g. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Drive summary. The gear unit with this motor weighs 16,000 g in total, has 15 arcmin of backlash, gives 203 Nm of peak output torque and allows 147 Nm continuously.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent selects a PS.C planetary servo gear unit with a CMP servomotor for a machine builder: the gear unit and ratio, the motor, the peak and continuous torque the axis needs, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the combination tables and limits in SEW-EURODRIVE's public catalog and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote a PSC522 servo gear unit. The output shaft carries 5,500 N continuously and 7,000 N at peak, and the application allows 15 arcmin of backlash. The rest of the request is on screen. The quote states a drive mass of 16,000 g.
    4. 
      
  4. Before it goes out, the agent calls the validator.
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  5. Blocked, with two findings and one approval, all in one answer. The required output speed gives an input speed of 7500 rpm; the gear unit allows at most 6000 rpm for short-time duty. The peak overhung load of 7000 N exceeds the permitted 6750 N at the output shaft.
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  6. The validator returned two blocking findings and one approval in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for input speed from the output speed and the ratio, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the ratio to 15, the continuous overhung load to 4,900 N and the peak overhung load to 6,500 N.
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  10. It calls the validator again.
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  11. Not blocked, but held for a person.
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  12. The two blocking findings are cleared; one approval remains for a person: altitude above 1000 m.
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  13. The agent resubmits once more.
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  14. The revised request. It changes the altitude to 950 m.
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  15. It calls the validator once more.
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  16. This time the validator clears it.
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  17. The earlier finding is cleared.
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  18. Three problems caught in one call, fixed in two passes, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    19.