The PLC is equipped with a switching power supply for internal circuits. Compared with ordinary power supply, PLC power supply has good stability and strong anti-interference ability. The stability of power supply provided by the power grid is not required, and the power supply voltage is generally allowed to fluctuate within ± 15% of its rated value. Many PLCs also provide DC 24V regulated power supply for external sensors.
Other external equipment
In addition to the components and equipment described above, PLC also has many external devices, such as EPROM writer, external memory, human/computer interface device, etc.
EPROM writer is a PLC external device used to solidify user programs into EPROM memory. In order to ensure that the user program is not easily lost after debugging, the EPROM writer is often used to save the RAM in the PLC to the EPROM.
The semiconductor memory inside PLC is called internal memory. Sometimes external tapes, disks and storage boxes made of semiconductor memories can be used to store PLC user programs. These memory devices are called external memories. External memory generally transfers user programs with internal memory through interfaces provided by programmers or other intelligent modules.
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Product Description
The IC697PWR748 is a 90W 48 VDC Power Supply Module by GE Fanuc for the 90-70 Series. It has three output voltages (+5 VDC output up to 18 amps, +12 VDC output up to 1.5 amps, and -12 VDC output up to 1 amp) totaling 90 watts. The module features slide-in rack mount construction and two rack operation from a single power supply. This power supply is equipped with electronic short circuit overcurrent protection provided on a 5 volt bus.
This particular unit plugs into a 48-pin backplane-mounted connector (see leftmost slot in the rack). It delivers +5 volt, +12 volt, and -12 volt power. Logic level sequencing signals to the backplane. The IC697PWR748 power supply module can be used in a single rack application or, if the user prefers, it can provide power to a second rack. If the latter is chosen, it is important that the total load is within the supply rating.
Interconnection to the second rack is by way of a prewired cable (IC697CBL700). The power supply output will ride through a 10 ms total loss of input power at full load. Protection is delivered for overcurrent and overvoltage fault conditions. The power supply comes standard with an electronic overvoltage protection circuit which will clamp the output if the 5 V bus exceeds 6.7 volts. External overvoltage on the output will not cause the power supply fuse to open, but if an internal fault in the power supply caused the overvoltage condition, it is possible for the fuse to open. If the fuse needs replacement, a 5 amp, 250 volt 5×20 mm fuse should be used.
IC687BEM713
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Our products are guaranteed for 1 year, with new and original production stopped and imported spare parts.
All prices listed on the official website are subject to confirmation by contact: Wu Jiedong (manager).
Our product: brand new original packaging
Our warranty: All new or repaired parts have a 12 month warranty period beginning
Our payment: 100% telegraphic transfer of inventory items before shipment, conditions can be proposed!
If you have any downtime spare parts that you cannot find, please feel free to call or use email to contact me. If there are issues that the product cannot solve, please contact me. Product prices can be negotiated. Please do not consider contacting me!