At a Glance
The BMX DDI 1602 module is fitted with a removable 20-pin terminal block for the connection of sixteen input channels.
Input Circuit Diagram
The following diagram shows the circuit of a direct current input (positive logic).
Module Connection
| DANGER | |
|---|---|
HAZARD OF ELECTRICAL SHOCK, EXPLOSION OR ARC FLASH Switch off the sensor and pre-actuator voltages before
connecting or disconnecting the module. Failure to follow these instructions will result in death or serious injury. | |
| CAUTION | |
|---|---|
LOSS OF INPUT FUNCTION Install the correct rating and type of fuse. Failure to follow these instructions can result in injury or equipment damage. | |
The following diagram shows the connection of the module to the sensors.
power supply: 24 VDC
fuse: fast blow fuse of 0.5A
Sensor Power Outage
After a power sensor outage, if the check box is not selected in the module configuration screen then the digital input can stay active.
| WARNING | |
|---|---|
DIGITAL INPUT STATE INACTIVE AFTER A SENSOR POWER OUTAGE Do not click to clear the check box in the module configuration
screen to guarantee the digital input state inactive after sensor
power outage. Failure to follow these instructions can result in death, serious injury, or equipment damage. | |
To access the check box, refer to chapter How to Modify the External Power Supply Error Monitoring Parameter.
After the sensor power outage, the I/O (red) LED of the module switches on and the last recorded position of the sensor is displayed by the input channel status LED's.
| WARNING | |
|---|---|
CHANNEL LED INFORMATION NOT MATCHING SENSORS POSITION After a sensor power outage:
Failure to follow these instructions can result in death, serious injury, or equipment damage. | |