中文版
Description
The Allen-Bradley 1771-OAD module is a 12 to120 Volts AC output module. This module uses zero-crossing
technology, which allows it to turn on when the output voltage is less than the specified voltage, usually at 40 to
50 Volts AC. It also greatly reduces pressure on contacts and other devices which may be sensitive to the current
surge. The 1771-OAD module is compatible with some Allen-Bradley chassis, excluding the 1771-A1, 1771-A2,
and the 1771-A4. The output range of this module is from 10 to 138 Volts AC at a frequency of 47 to 63 Hertz, and
its output current rating is 2 Amps. The minimum load current of this module is 5 mA, the maximum OFF state leakage
current is 3.0 mA at 138 Volts AC. The power dissipation of this module is 13 Watts maximum and 1.5 Watts minimum.
Its thermal dissipation is 48.0 BTU/hour at maximum and 5.13 BTU/hour at minimum.
1771-OAD
When using the Allen-Bradley 1771-OAD module with a device that includes a single diode that is in
a series with the load, place the shunt resistor (39 KOhm, 1 Watt) throughout the charge. This resistor
enables proper output operation. The shunt resistor can cause the LED indicator to light up when the
output is switched off. If this happens, use an incandescent lamp in place of the LED. The 1771-OAD
module receives power that is supplied through an Allen-Bradley 1771 I/O chassis backplane from the
chassis power supply. It requires 295 mA of this supply output current. Add this to the requirements of all the
other modules on the I/O chassis to prevent overloading the backplane chassis and/or the power supply casing.
Please contact Sunny sales@xiongbagk.cn for the best price.
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