178B2538
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6006GT6CN1STR0DLF00A00C0
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The 178B2538 drive features a supply voltage range of 3 x 525/550/575/600 V ±10%, a power factor of 0.90/1.0 at rated load, a maximum short-circuit current of 100,000 amps, and an output frequency up to 1000 Hz. From the VLT 6000 HVAC Drives series by Danfoss, it supports a maximum ambient temperature of 45°C.
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Product Description:
The 178B2538 frequency converter refers to the model VLT6006GT6CN1STR0DLF00A00C0. This unit is manufactured by Danfoss. It is engineered for precise HVAC control and ensures reliable motor operation across demanding conditions. The converter offers advanced protection features and clear monitoring capability.
The Danfoss 178B2538 operates three-phase induction motors in fans, pumps and compressors. It connects via the AC line input and requires proper grounding. The built-in RS-485 communication with the FLN protocol provides half-duplex data transfer at 4800 or 9600 baud. Optical isolation improves fault tolerance while reducing noise. Terminals 53 and 54 take 0-10 VDC analog inputs and terminal 60 accepts 0-20 mA or 4-20 mA signals. Analog outputs give 0-20 mA or 4-20 mA signals that can be programmed for frequency, torque, or current. There are two relay outputs: one Form C rated 240 VAC 2A and one Form A rated 30 VAC 1A. The local control panel provides immediate access to the Start, Stop, Hand, Auto, Reset, Quick Menu and Extended Menu operations. Quick Menu parameters control motor power, voltage, current, frequency, nominal speed, ramp-up and ramp-down timings and relay configuration. It has low pass filtering to provide feedback stability. Sleep mode conserves energy when demand is low and immediately restarts when demand increases. Hand and Auto modes alternate between local and bus control. Supported techniques include hardwired PID, full FLN control, integrated monitoring and FLN feedback with VLT PID. Control wire requires 18-24 AWG shielded twisted pairs. The torque specification for wiring is 0.5 Nm.
The 178B2538 delivers Class 20 electronic thermal relay protection and active motor monitoring. Fault detection includes phase loss, ground faults, short circuits, overvoltage, undervoltage, and high heatsink temperatures. The safety interlock functions include hardwired and FLN control stops. If communication fails, freeze mode keeps the operating frequency constant while the coast function ensures a freewheeling halt. The network termination is configured via DIP switches. The converter ensures strong protection, advanced networking and reliable HVAC performance.
Frequently Asked Questions about 178B2538:
Q: How does the freeze mode in product code 178B2538 improve reliability?
A: Freeze mode holds the operating frequency during communication loss. It ensures uninterrupted motor performance until signals are restored.
Q: Why is optical isolation included in the VLT6006GT6CN1STR0DLF00A00C0?
A: It reduces electrical noise interference in control signals. This improves system stability in demanding industrial environments.
Q: How do DIP switches for RS-485 termination support the 178B2538 module?
A: They allow proper network matching for communication lines. This minimizes data reflection and improves signal accuracy.
Q: How does the coast function in VLT6006GT6CN1STR0DLF00A00C0 enhance safety?
A: It lets the motor freewheel safely when triggered. This prevents mechanical stress during sudden stops.
Q: Why does the 178B2538 support both Form A and Form C relays?
A: Different relay types allow versatile external control options. They cover wider application needs for alarms or control circuits.
