ABB DX581-S 1SAP284100R0001  4 pulse outputs

The first two banks on the IOM-1964, banks 0 and 1, have high current output drive capability. The IOM-1964 is shipped with banks 0 and 1 configured as outputs. Each output can drive up to 500mA of continuous current. Configuring a bank of I/O as outputs is done by inserting the optical isolator NEC2505 IC’s into the Ux1 and Ux2 sockets. The digital input IC’s Ux3 and Ux4 are removed. The resistor packs RPx2 and RPx3 are inserted, and the input resistor pack RPx4 is removed. Each bank of eight outputs shares one I/OC connection, which is connected to a DC power supply between 4 and 28 VDC. A 10k ohm resistor pack should be used for RPx3. Here is a circuit diagram:The load is connected between the power output and output common. The I/O connection is for test purposes, and would not normally be connected. An external power supply is connected to the I/OC and OUTC terminals, which isolates the circuitry of the DMC-1748 controller/DB-14064 daughter board from the output circuit.

Standard Digital Outputs 

The I/O banks 2-7 can be configured as optically isolated digital outputs, however these banks do not have the high power capacity as in banks 0-1. In order to configure a bank as outputs, the optical isolator chips Ux1 and Ux2 are inserted, and the digital input isolator chips Ux3 and Ux4 are removed. The resistor packs RPx2 and RPx3 are inserted, and the input resistor pack RPx4 is removed. Each bank of eight outputs shares one I/OC connection, which is connected to a DC power supply between 4 and 28 VDC. The resistor pack RPx3 is optional, used either as a pull up resistor from the output transistor’s collector to the external supply connected to I/OC or the RPx3 is removed resulting in an open collector output.

The resistor pack RPx3 limits

 the amount of current available to source, as well as affecting the low level voltage at the I/O output. The maximum sink current is 2mA regardless of RPx3 or I/OC voltage, determined by the NEC2505 optical isolator IC. The maximum source current is determined by dividing the external power supply voltage by the resistor value of RPx3. The high level voltage at the I/O output is equal to the external supply voltage at I/OC. However, when the output transistor is on and conducting current, the low level output voltage is determined by three factors. The external supply voltage, the resistor pack RPx3 value, and the current sinking limit of the NEC2505 all determine the low level voltage.

Common problem

We have this product in stock, and we can deliver it to you at any time when you need it badly.

*The warranty period of all products is 1 year, which has passed the professional test certification.

*If you need to order more than one product, please contact us, and we can offer you a discount.

*We only use HDL  UPS  and other express delivery methods to deliver spare parts.

*If you find that other suppliers offer lower prices for the same products, we are also willing to offer you further discounts based on their prices.

If you have any other questions, please feel free to contact us via email.

*Please let us know if you need any spare parts, we can give you further assistance, and we are waiting for your inquiry.