SC905-034-01
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The SC905-034-01 is a stainless steel sensor clamp featuring a nominal clamp diameter of 34 mm and high corrosion resistance. Manufactured by Pacific Scientific under the SC900 Servo Drives series, it is bolt-on style with a weight of 85 grams. The clamp operates efficiently in temperatures from -40°C to 150°C.
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Product Description:
The SC905-034-01 Servo Controller from Pacific Scientific supports three phase input, delivers fast current response and ensures efficient torque control. It is suitable for controlling large motors with high output current capacity.
The SC905-034-01 servo controller offers a peak output current of 60 A for 5 seconds and continuous output of 30 A under various cooling conditions. At 240 VAC, it achieves 18 kW peak power in 1 second. The power stage efficiency reaches up to 97 %. The shunt regulator peak handling is 20 kW for 300 milliseconds with continuous dissipation up to 200 W at + 25 °C. It supports 20 kHz output current ripple frequency and operates with a control power input range from 90 – 264 VAC or 130 – 370 VDC. The recommended transformer is rated 5 to 10 kVA with a maximum AC line rating of 500 kVA. It operates with 180 – 264 VAC input on a three phase supply. The motor shaft torque is calculated using a pseudo sine waveform based on the back EMF profile. The motor control of this model is precise with a maximum bandwidth of 1.5 kHz and recommended at 1.0 kHz. The bandwidth variation is within ± 10 % for fixed motor inductance and ± 2 % for ± 25 % AC line variation. The system update rate is 62.5 µs that enables fast control loop performance.
The SC905-034-01 servo controller is optimized for motors with electrical frequencies under 400 Hz. The controller supports convection or forced air cooling that offers continuous current capability under both conditions. It delivers 30 A continuously under + 50 °C convection cooling. Its internal regulator is robust that allows rapid power dumping and absorption for high dynamic loads.
Frequently Asked Questions about SC905-034-01:
Q: Can the SC905-034-01 handle high dynamic loads with stability during peak power conditions?
A: Yes, the SC905-034-01 uses a robust internal regulator that supports rapid power dumping and absorption. It manages dynamic loads efficiently with a peak shunt regulator capacity of 20 kW for 300 ms.
Q: How precise is the torque control on the Pacific Scientific SC905-034-01 controller?
A: The SC905-034-01 calculates motor shaft torque using a pseudo sine waveform based on the back EMF profile. This ensures precise torque control, especially at a bandwidth of up to 1.5 kHz.
Q: What cooling configurations support the SC905-034-01's continuous current rating?
A: This servo controller delivers 30 A continuously under convection cooling at +50 °C. It also supports forced air cooling for enhanced thermal performance in high-load environments.
Q: Does the SC905-034-01 servo controller maintain stable performance across varying AC line and motor inductance conditions?
A: Yes, the bandwidth variation stays within ±10% for fixed motor inductance. For ±25% AC line variation, it maintains ±2% variation, ensuring consistent control response.
Q: How fast is the control loop response in the SC905-034-01 from Pacific Scientific?
A: Its system update rate is 62.5 µs, enabling rapid loop updates. This allows the SC905-034-01 to achieve fast current response and high-performance torque control for large motors.
