We have " 9.7:1 Metal Gearmotor 25Dx48L mm HP 6V with 48 CPR Encoder “ model motor. We would like to verify the Matlab Motor Performance diagrams and for this we made few experiments.
We connected the motor directly to the external DC Power Supply which has 0-24 V and 10 A capacity.
First, we measured free run current and we read 560 mA. This value is same as catalog value. However, when we tried to measure stall current, we blocked the shaft rotation and measured 2,8A. According to the catalog value, it should be 5.6 A.
How is this possible ? Are there any wrong steps in our experiment ?