Forum >Torque and stall current for Micro DC Geared Motor with Back Shaft (SKU:FIT00016
Torque and stall current for Micro DC Geared Motor with Back Shaft (SKU:FIT00016
rcouineau 2014-04-01 12:21:12 7449 Views3 Replies Hi:
What is the torque and stall current for Micro DC Geared Motor with Back Shaft (SKU:FIT00016)? Do I need a 1A or 3A per channel motor controller?
[url=http://www.dfrobot.com/wiki/index.php/Micro_DC_Geared_Motor_with_Back_Shaft_(SKU:FIT00016)]http://www.dfrobot.com/wiki/index.php/Micro_DC_Geared_Motor_with_Back_Shaft_(SKU:FIT00016)[/url] mentions:
Max. Output Torque: 0.8 kgf.cm
Max. Stall Current: 2.8 A
[url=http://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100#.UzA4yfldV8E]http://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100#.UzA4yfldV8E[/url] mentions:
Stall current(3V):260mA
Stall current(6V):470mA
Torgue (3V): 1.2Kgcm
Torque (6V): 1.92Kgcm
Thanks
What is the torque and stall current for Micro DC Geared Motor with Back Shaft (SKU:FIT00016)? Do I need a 1A or 3A per channel motor controller?
[url=http://www.dfrobot.com/wiki/index.php/Micro_DC_Geared_Motor_with_Back_Shaft_(SKU:FIT00016)]http://www.dfrobot.com/wiki/index.php/Micro_DC_Geared_Motor_with_Back_Shaft_(SKU:FIT00016)[/url] mentions:
Max. Output Torque: 0.8 kgf.cm
Max. Stall Current: 2.8 A
[url=http://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100#.UzA4yfldV8E]http://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100#.UzA4yfldV8E[/url] mentions:
Stall current(3V):260mA
Stall current(6V):470mA
Torgue (3V): 1.2Kgcm
Torque (6V): 1.92Kgcm
Thanks
2014-04-02 19:18:49 Hello,
Sorry for the confused again.
I think you are mix product page and the wiki page, what you mentioned about is on the wiki page, not the product page. And I have already corrected the wiki page. They are same now.
Obviously, I forget check other products which are using this gear DC motor.
Don't worry, we will correct them later.
Any way, Romeo V2 has an L298 chip. It is a motor drive chip. Battery provides the current directly. Romeo only need to provide control signal: the direction and the speed. So don't worry for the current issue.
Let us know if you have any suggestion or problem. Grey.CC
Sorry for the confused again.
I think you are mix product page and the wiki page, what you mentioned about is on the wiki page, not the product page. And I have already corrected the wiki page. They are same now.
Obviously, I forget check other products which are using this gear DC motor.
Don't worry, we will correct them later.
Any way, Romeo V2 has an L298 chip. It is a motor drive chip. Battery provides the current directly. Romeo only need to provide control signal: the direction and the speed. So don't worry for the current issue.
Let us know if you have any suggestion or problem.
Grey.CC 2014-04-02 06:21:24 Hi:
The product page for the Micro DC Geared Motor ( [url=https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100]https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100[/url] ) has been changed to read:
Max. Output Torque: 0.8 kgf.cm
Max. Stall Current: 2.8 A
I'm planing on building a 4WD Rover electrically similar to your Pirate-4WD Mobile Platform and control it with a Romeo v2. The product page for the Pirate-4WD Mobile Platform ( [url=https://www.dfrobot.com/index.php?route=product/product&product_id=97]https://www.dfrobot.com/index.php?route=product/product&product_id=97[/url] ) mentions that it contains 4 Units of Micro DC Geared Motor (FIT0016) and that the Motor Specifications include:
? Stall current(3V):260mA
? Stall current(6V):470mA
? Torgue (3V): 1.2Kgcm
? Torque (6V): 1.92Kgcm
The Romeo v2 Controller's specs indicates "Motor driver Continuous Output Current:2A" and "Two way Motor Driver with 2A maximum current". This all seems conflicting specs to me.
My question is fairly simple. If I plug 2 units of Micro DC Geared Motor (FIT0016) in each of the channel of the Romeo v2 Controller just like with the Pirate-4WD Mobile Platform, how much current will flow through each channel of the controller in a stall condition at 6V? 2*0.470=0.94A per channel as indicated in the Pirate product page or 2*2.8=5.6A per channel as suggested in the FIT0016 Motor product page?
If it draws 5.6A per channel, shouldn't the Romeo controller burst up in flames? Assuming that your products are properly designed, the Stall current(6V) for the Micro DC Geared Motor (FIT0016) is most likely 470mA and not 2.8A which would be a good fit for the Romeo v2's 2A Peak Output Current per channel for the L298 in DC Operation.
Am I right in my assumption? I'm no expert in electronics so your confirmation would be much appreciated so I can proceed with my order. If so, the wiki was indeed correct and the product page for the Micro DC Geared Motor ( [url=https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100]https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100[/url] ) is to be changed back to what it was, i.e.:
? Gear Ratio 1:120
? No-load speed(3V):100RPM
? No-load speed(6V):200RPM
? No-load current(3V):60mA
? No-load current(6V):71mA
? Stall current(3V):260mA
? Stall current(6V):470mA
? Torgue (3V): 1.2Kgcm
? Torque (6V): 1.92Kgcm
? Size: 55mm x 48.3mm x 23mm
? Weight:45g
Thanks rcouineau
The product page for the Micro DC Geared Motor ( [url=https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100]https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100[/url] ) has been changed to read:
Max. Output Torque: 0.8 kgf.cm
Max. Stall Current: 2.8 A
I'm planing on building a 4WD Rover electrically similar to your Pirate-4WD Mobile Platform and control it with a Romeo v2. The product page for the Pirate-4WD Mobile Platform ( [url=https://www.dfrobot.com/index.php?route=product/product&product_id=97]https://www.dfrobot.com/index.php?route=product/product&product_id=97[/url] ) mentions that it contains 4 Units of Micro DC Geared Motor (FIT0016) and that the Motor Specifications include:
? Stall current(3V):260mA
? Stall current(6V):470mA
? Torgue (3V): 1.2Kgcm
? Torque (6V): 1.92Kgcm
The Romeo v2 Controller's specs indicates "Motor driver Continuous Output Current:2A" and "Two way Motor Driver with 2A maximum current". This all seems conflicting specs to me.
My question is fairly simple. If I plug 2 units of Micro DC Geared Motor (FIT0016) in each of the channel of the Romeo v2 Controller just like with the Pirate-4WD Mobile Platform, how much current will flow through each channel of the controller in a stall condition at 6V? 2*0.470=0.94A per channel as indicated in the Pirate product page or 2*2.8=5.6A per channel as suggested in the FIT0016 Motor product page?
If it draws 5.6A per channel, shouldn't the Romeo controller burst up in flames? Assuming that your products are properly designed, the Stall current(6V) for the Micro DC Geared Motor (FIT0016) is most likely 470mA and not 2.8A which would be a good fit for the Romeo v2's 2A Peak Output Current per channel for the L298 in DC Operation.
Am I right in my assumption? I'm no expert in electronics so your confirmation would be much appreciated so I can proceed with my order. If so, the wiki was indeed correct and the product page for the Micro DC Geared Motor ( [url=https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100]https://www.dfrobot.com/index.php?route=product/product&path=47_110&product_id=100[/url] ) is to be changed back to what it was, i.e.:
? Gear Ratio 1:120
? No-load speed(3V):100RPM
? No-load speed(6V):200RPM
? No-load current(3V):60mA
? No-load current(6V):71mA
? Stall current(3V):260mA
? Stall current(6V):470mA
? Torgue (3V): 1.2Kgcm
? Torque (6V): 1.92Kgcm
? Size: 55mm x 48.3mm x 23mm
? Weight:45g
Thanks
rcouineau 2014-04-01 18:59:21 Hello,
Welcome to our DFRobot forum.
This is an old version wiki page. The parameter has been changed. So we haven't added the link to the product page. Please follow our product page.
Anyway, sorry for the confused. We will correct the wiki later. Grey.CC
Welcome to our DFRobot forum.
This is an old version wiki page. The parameter has been changed. So we haven't added the link to the product page. Please follow our product page.
Anyway, sorry for the confused. We will correct the wiki later.
Grey.CC 