Delta Electronics IFD8500 - Isolated Converter Instruction Manual

Warnings

• IFD8500 is an OPEN-TYPE device. It should be installed in a control cabinet free of airborne dust, humidity, electric shock and vibration. To prevent non-maintenance staff from operating IFD8500, or to prevent an accident from damaging IFD8500, the control cabinet in which IFD8500 is installed should be equipped with a safeguard. For example, the control cabinet in which IFD8500 is installed can be unlocked with a special tool or key.
• DO NOT connect AC power to any of I/O terminals, otherwise serious damage may occur. Please check all wiring again before IFD8500 is powered up. After IFD8500 is disconnected, Do NOT touch any terminals in a minute. Make sure that the ground terminal on IFD8500 is correctly grounded in order to prevent electromagnetic interference.

Introduction

IFD8500 converts RS-232 signals to RS-485/RS422 differential voltage lines for data transmission.
IFD8500 allows you to easily connect a RS-232 device to another RS-485/RS-422 equipment without changing any hardware or software.

Appearance

Specifications

Installation

Data Format

Set up baud rate and data format to control the data flow.

Notes: ** default setting

Calculation of length of data frame:
Length = Start bit + data length + parity bit + stop bit
Example: Data Length = 8 bits, None parity, stop bit = 1 bit, Length = 1 + 8 + 0 + 1 = 10

Termination Resistor

To terminate the cable is system dependent and is affected by the choice of the maximum cable length and signal rate. The length of RS-485 network cable can be extended to 4,000 ft or 1.2km. It is necessary to match the line impedance of network to avoid signal distortion by adding to termination resisters on both ends of RS-485/RS-422 network cable.

Hints for using termination resistor:

1. The longer the transmission cable, the worse the signal quality.
2. Two transmission resistors are recommended to install on both ends of the main cable on the RS-485/RS-422 network. It is not necessary to add termination resistors on each node in the same network.
   
3. If the transmission wire of RS-485 uses 1.2km AWG#24 twisted pair cable, we recommend you use 120Ω resistor.

Wiring

1. RS-232 (D-SUB 9PIN)
   
   PIN 1-4-6 and 7-8 is short-circuited on the PCB.
2. Power and RS-485/RS-422 (10PIN terminal)
   

Notes:

1. IFD8500 provides 60VDC reverse power protection.
2. To reduce interference, using twisted pair cable is recommended.

Mounting Method

IFD8500 is enclosed with mounting panel*1.

1. DIN Rail
   
2. Panel Mount
   
3. Piggyback
   

Operation

1. LED display:
   1. Green LED On: Power on but no data transmission.
   2. Red LED flashing: Data is being transmitted from RS-485/RS-422 to RS-232 port.
   3. Green LED flashing: Data is being transmitted from RS-232 to RS-485/RS-422 port.
2. Notes for data transmission on RS-485:
   The RS-485 allows for multiple drivers and receivers on single line, facilitating half duplex communication. Before sending data to RS-485 bus line, make sure that there is no data transmission on the bus; otherwise you will lose the data.

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Delta Electronics IFD8500 - Isolated Converter Instruction Manual