Hi300-4045A05N7 Servo Drive

It is a standard medium-and-high-power AC servo drive of the Hi300 series manufactured by Ningbo Haitian Drive (Marque: Hilectro). As the flagship model of Haitian Drive for electro-hydraulic servo applications, it is widely compatible with industrial equipment such as injection molding machines and hydraulic presses. It features high reliability, superior energy efficiency and precise pressure/speed control performance. Matched with 45kW permanent magnet servo motors, it adopts forced air cooling design and supports multiple encoder types as well as industrial bus expansion.

Bit-by-bit Model Code Decoding

Per the official naming specification, each segment of the model Hi300-4045A05N7 is defined as follows:

Spécifications techniques de base

Spécifications électriques

Contrôle & Interfaces

Supported Encoders: Résolveur, incremental TTL encoder, sine/cosine encoder; expandable to absolute encoder, Endat encoder

Interfaces standards: CAN bus, RS485 (Modbus protocol supported), high-speed Ethernet debugging port, Port USB (parameter read/write via USB flash drive)

Modes de contrôle: Closed-loop speed control, closed-loop pressure control, closed-loop torque control; compound pressure/flow control for electro-hydraulic servo systems

Expandable Functions: PROFINET bus module, STO Safe Torque Off, WIFI wireless operator panel

Mécanique & Spécifications environnementales

Hi300 Series No.5 Chassis Models (Air-cooled Type)

Note: The suffix represents function version code, replaceable with D (Resolver Encoder Card), P. (PROFINET Card), T (STO Safety Function) and other customized versions.

Scénarios d'application typiques

1. Injection Molding Machine Industry: Energy-saving retrofits of electro-hydraulic servo systems for horizontal/vertical injection molding machines, supporting new machine assembly; achieves precise pressure and flow control with energy saving rate up to 30%~80%.
2. Hydraulic Forming Equipment: Servo power systems for die casting machines, aluminum extrusion presses, hydraulic oil presses and hydraulic punching machines.
3. General Hydraulic Power Units: Energy efficiency upgrade for industrial hydraulic systems, electrification retrofits of construction machinery hydraulic stations.
4. Other Scenarios: Electric drive systems for off-road mobile machinery, large material conveying equipment.

Common Fault Troubleshooting Matrix

1. Complete Terminal Definition (Hi300-4045A05N7 No.5 Air-cooled Model)
2. Main Power Circuit Terminals

Located in the high-power zone at the bottom of the drive, matched for 45kW power class, wiring specifications and functions as follows:

2. Control Terminals of Hi3-S1 Control Board

Located in the front control zone of the drive, including four types of interfaces: E/S, analogique, communication and encoder.

(1) Digital Input Terminals (X1~X6, NPN Common Cathode Type)

(2) Digital Output Terminals (Y1~Y3, Relay Contact Output)

(3) Analog Interfaces (Core Control Ports for Electro-Hydraulic Servo)

(4) Communication & Encoder Interfaces

Interfaces de communication: Standard CAN bus (CAN_H/CAN_L/GND), RS485 (Modbus-RTU supported), RJ45 Ethernet debugging port, USB-A port (parameter backup / firmware upgrade via USB flash drive)

Interface d'encodeur (CN2): Standard resolver interface (Excitation ±, Sine ±, Cosine ±, Shield Ground); expandable to TTL incremental encoder, sine/cosine encoder, absolute encoder card.

3. Wiring Forbidden Rules (Strictly Prohibited Operations)
4. It is strictly forbidden to connect main power terminals R/S/T to motor output terminals U/V/W, which will burn out IGBT power modules instantly.
5. Do not short-circuit P+ and BR terminals; never connect braking resistor directly across positive and negative poles of DC bus, which may cause fire hazards.
6. Do not plug/unplug encoder cables and control terminal blocks under live power, which may damage communication chips of interfaces.
7. PE terminal shall never be connected to grid neutral wire; it must be separately wired to equipment protective earth bar.
8. Do not touch main circuit terminals within 5 minutes après la mise hors tension, as DC bus capacitors store high residual voltage.
9. Quick Commissioning Guide (Electro-Hydraulic Servo / Injection Molding Machine Scenarios)

The following steps apply to hydraulic systems equipped with resolver permanent magnet servo motors and firmware version V6.30 or above.

1. Pre-power-on Safety Inspection
2. Confirm tight wiring of main circuit, control circuit and encoder without short circuit, misconnection or loose contact.
3. Fully loosen the relief valve of hydraulic system to ensure motor operates under no-load condition after startup.
4. Disconnect external enable signal (X1) to prevent automatic drive operation after power-on.
5. Measure grid input voltage with multimeter to verify it falls within the range of 380V±15%.
6. Factory Reset & Permission Unlock
7. Après la mise sous tension, the drive enters standby state with initial interface displayed on panel.
8. Press down key twice consecutively to enter USB120 permission interface, input password 1000 to complete unlock; the interface automatically switches to USB121 after successful unlock.
9. Access quick parameter group SP.02, set value to 2 and press Ent to confirm; the drive executes factory parameter reset.
10. The drive restarts automatically after reset completion; wait until standby interface resumes.
11. Motor Parameter Matching & Loading
12. Check model code on nameplate of matched Haitian servo motor (the drive has built-in parameter library for full series of Haitian motors).
13. Enter parameter SP.01 and input corresponding motor model code (standard code for 45kW injection molding servo motor is subject to motor nameplate).
14. Re-enter SP.02, set value to 20 and press Ent to confirm; the drive automatically loads rated motor parameters.
15. The panel displays Bu002 during loading process, and returns to standby interface automatically upon completion.
16. Encoder Zero Offset Auto-tuning (Étape principale)

> The motor must stay no-load and relief valve fully loosened; otherwise angle calibration will be inaccurate.

1. Enter parameter SP.03, set value to 1212 and press Ent to confirm.
2. Short-circuit servo enable (conduct X1 and COM), press green RUN key on panel.
3. Panel shows Bu001, the motor rotates slowly for approximately one revolution to finish encoder zero offset calibration automatically.
4. Current encoder angle value displays after successful tuning; repeat operation 2~3 times, qualified if angle deviation ≤0.5°.
5. If fault Er068 (Initial Angle Error) occurs: change parameter CS.04 depuis 0 à 1, or swap any two phases of U/V/W after power-off and re-run auto-tuning.
6. No-load Jog Test Run
7. Enter parameter SP.11, set test speed to 20 (Unité: r/min).
8. Keep enable signal conducting and press RUN key to observe motor rotation direction.
9. Direction judgment standard: clockwise rotation is forward when viewing from motor tail towards oil pump; re-run auto-tuning if reverse rotation occurs.
10. Press STOP to halt operation, gradually increase speed to 100r/min and run no-load for 3 minutes, confirm no abnormal noise, vibration or overheating.
11. Closed-loop Pressure & Flow Calibration
12. Flow Calibration: Input full-scale 10V signal to AI1, adjust SP.20 (Flow Gain) to make motor speed reach rated value.
13. Pressure Calibration: Close stop valve at pump outlet, input full-scale 10V signal to AI2, adjust SP.21 (Pressure Gain) to make system pressure reach maximum rated value.
14. Tune SP.22 (Flow Loop Integral Time) and SP.23 (Pressure Loop Integral Time) to optimize response speed and eliminate system oscillation.
15. Test pressure/flow commands at 25%, 50%, 75% et 100% ranges step by step, confirm deviation between feedback and command ≤2%.
16. Parameter Saving & Load Joint Commissioning
17. After all parameters are debugged, enter SP.00 and set value to 1 to permanently save parameters into the drive.
18. Connect to main control system of injection molding machine, conduct cyclic tests in manual, semi-automatic and full-automatic modes sequentially.
19. Real-time monitor operating current, DC bus voltage and heatsink temperature to ensure no alarms or overload conditions.
20. Fine-tune acceleration/deceleration time and pressure loop bandwidth according to process requirements to match equipment production cycle.

Hi308-4045A05N7 is the official upgraded successor model of Hi300-4045A05N7

Both models adopt 45kW 3-phase 380V air-cooled No.5 chassis, with basically compatible core power parameters, mounting dimensions and terminal definitions for direct physical replacement. Cependant, Hi308 achieves comprehensive upgrades in control algorithm, interface expandability, environmental adaptability and functional richness, suitable for more complex mid-to-high-end electro-hydraulic servo applications.

Core Comparison Table (Same 45kW No.5 Air-cooled Chassis Models)

Supplementary Explanations

1. Compatibilité de remplacement

The two models share identical cabinet mounting hole positions, main circuit terminals and control terminal definitions. Hi308 can physically replace Hi300 directly without cabinet hole modification or main circuit wiring changes. Core parameters can be migrated directly; only minor tuning of optimized PID parameters is needed for normal operation.

2. Model Selection Suggestions

For maintenance of existing equipment and cost-sensitive ordinary retrofit projects, Hi300 meets basic operating requirements.

For new machine assembly, high-precision process demands, multi-pump systems and high-temperature operating environments, the upgraded Hi308 is preferred for superior long-term stability and performance margin.