175Z7284

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The 175Z7284 is a high-performance HVAC drive manufactured by Danfoss. Part of the VLT 6000 HVAC Drives series, it supports an input voltage of 380-460 VAC and a rated power of 5 HP. This drive operates within a frequency range of 0-1000 Hz. It features full galvanic isolation (PELV).

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Wake Industrial Warranty

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Product Description:

The 175Z7284 drive is designed for precise motor control in demanding HVAC applications. The model refers to the VLT6006GT4CN1STR3DLF00A00C0 product that provides reliable performance with strong protection features. It ensures accurate programming through Quick Menu setup functions and adjustable motor parameters.

The 175Z7284 drive is manufactured by Danfoss . Its frequency is commonly set to 50 or 60 Hz. The current limit function protects the motor from excessive torque. Relay one is Form C rated for 240 VAC and 2 A. Relay two is Form A, rated at 30 VAC and 1 A. For 0 to 10 V analog inputs, control wiring includes terminals 53 and 54. Terminal 60 allows for 0 to 20 mA or 4 to 20 mA analog input. Terminals 01–03 support 240 VAC relay output. Terminals 04 and 05 offer 30 VAC relay outputs. The drive support RS-485 communication. Control wiring torque is specified at 4.5 in-lb or 0.5 Nm. Recommended wire size is 18 to 24 AWG shielded twisted pair. A built-in +24 VDC power supply supports external sensors with up to 200 mA. Alarms and defects include overcurrent, undervoltage, thermal overload, communication faults, and EEPROM errors. The drive guarantees that HVAC fans, pumps, and compressors function properly.

The Danfoss 175Z7284 provides Class 20 motor overload protection through an electronic thermal relay. The heat conditions of the motor and drive are continuously monitored, and excursions are initiated when thresholds are exceeded. Ground fault, overvoltage, undervoltage, and short-circuit detection are all included as integrated protections. Safety interlocks are available with either hard-wired or FLN command input. The external interlock will trip the drive and cause alarm 60 external problem. Monitoring capabilities include motor frequency, current, voltage, power, kilowatt-hour consumption, and runtime hours. Danfoss VLT 6000 HVAC Drives provide efficient motor control, superior protection and programming freedom.

Ambient Temperature Max (operation)
45°C
Ambient Temperature Min (operation)
0°C
Built-in Power Supply
+24 VDC for powering external sensors (200 mA max)
Enclosure Type
Chassis, NEMA 1, NEMA 12
Frequency Range
0-1000 Hz
Galvanic Isolation
Full (PELV)
Input Voltage
380-460 VAC
Max Motor Cable Length (shielded)
500 feet
Maximum Altitude
3300 feet
Nominal Input Frequency
50/60 Hz
Output Current
9.1 A
Rated Power
5 HP
Speed Control Range (open Loop)
1:100 of sync speed
Torque Specs (control wiring)
4.5 in-lb / 0.5 Nm

Frequently Asked Questions about 175Z7284:

Q: How does the Electronic Thermal Relay improve protection in the 175Z7284 VLT Drive?

A: The relay ensures Class 20 overload protection by monitoring heating levels. It prevents damage by tripping the drive when load conditions exceed safety limits.

Q: Why is RS-485 communication used in the Danfoss VLT 6000 HVAC Drives?

A: RS-485 provides reliable data transfer in noisy industrial environments. It allows integration with building automation systems for better monitoring.

Q: How does programmable acceleration and deceleration time benefit HVAC systems?

A: It allows smoother motor starts and stops, reducing mechanical stress. Adjustable timing improves efficiency in fan and pump operations.

Q: What role does the built-in +24 VDC power supply play in the 175Z7284 VLT Drive?

A: It powers external control sensors without needing a separate supply. This ensures consistent signal input for monitoring and automation.

Q: How does the current limit function protect the 175Z7284 VLT Drive?

A: The drive restricts motor current to a safe programmed value. This prevents torque overloads and protects system components.


Internal Product Review

  • ‘‘The 175Z7284 VLT Drive from Danfoss is a programmable HVAC drive. It offers motor overload protection, configurable frequency range, and RS-485 communication. According to industry use, this model is widely applied in large building ventilation, chilled water pumps, and commercial HVAC installations.’’

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