About the 1SU41003
1SU41003 is an SP500 drive that is manufactured by Reliance Electric. The rated horsepower of this drive is 3.0 HP, and this drive is contained in a NEMA 1 or chassis style enclosure. The rated voltage is 380-460 VAC. The enclosure size for this drive is size B. The dimensions of Enclosure B are 301.7 mm (11.88 in) (H) x 160.1 mm (6.3 in) (D) x 222.3 mm (8.75 in) (W). The weight of enclosure B is 5.4 kg (12 lb).
The user can identify drive faults via fault codes on the display. OCd is the code for the overcurrent at deceleration fault. This fault is caused by either an overcurrent condition that occurred while the drive was decelerating, or a too-short deceleration time. In order to correct this fault, increase the deceleration time. OF is the code for the overfrequency fault. This fault is caused by the drive exceeding the maximum allowable output frequency, the regenerating energy is too high, the stability or slip compensation circuit is adding frequency reference, the motor is too small, and/or if H.016 is ON, the searching current is too high. In order to correct this fault, increase deceleration time, check the slip compensation, and/or check the motor size v. the power module size. OH is the code for the drive overtemperature fault. This fault is caused by a cooling fan failure. In order to correct this fault, check the ambient temperature, the cooling fan, and the minimum clearances around the drive.