
Model |
KV-X520 |
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General specifications |
Power voltage |
System configuration using a KV-5000/3000 Series expansion unit: 24 VDC (±10%) |
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Operating ambient temperature |
System configuration using a KV-5000/3000 Series expansion unit: 0 to +50°C 32°F to +122°F (No freezing) |
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Operating ambient humidity |
System configuration using a KV-5000/3000 Series expansion unit: Up to 95% RH (No condensation) |
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Storage ambient temperature |
System configuration using a KV-5000/3000 Series expansion unit: −20 to +70°C −4°F to +158°F |
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Storage relative humidity |
System configuration using a KV-5000/3000 Series expansion unit: Up to 95% RH (No condensation) |
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Operating environment |
No dust or corrosive gas |
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Operating altitude |
2,000 m 6561.7' or less |
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Noise immunity |
IEC standard-compliant (IEC 61000-4-2/3/4/6) |
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Withstand voltage |
1500 VAC, 1 minute (between the power supply terminal and the I/O terminals and between the external terminals and the case) |
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Insulation resistance |
50 MΩ or more (between the power terminals and the I/O terminals and between the external terminals and the case, with 500 VDC megohmmeter) |
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Vibration resistance |
Intermittent vibration |
Frequency 5 to 9 Hz |
Half amplitude: 3.5 mm 0.14" *1 |
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Frequency 9 to 150 Hz |
Acceleration: 9.8 m/s2 32.2 ft/s2 *1 |
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Continuous vibration |
Frequency 5 to 9 Hz |
Half amplitude: 1.75 mm 0.07" *1 |
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Frequency 9 to 150 Hz |
Acceleration: 4.9 m/s2 16.1 ft/s2 *1 |
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Internal current consumption |
No more than 600 mA *2 |
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Shock resistance |
Acceleration: 150 m/s2 492.1 ft/s2, Application time: 11 ms, 2 times in each of the X, Y, and Z directions |
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Pollution degree |
2 |
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Weight |
Approx. 420 g 14.83 oz |
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Performance specifications |
Processing speed |
Contact I/O |
Min. 0.50 ns |
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Double-precision floating point calculation |
Min. 1.0 ns |
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Program |
Size |
128 MB |
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Max. count |
4000 |
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Material quantity |
100000 |
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Supported languages |
Ladder, structured text, mnemonic |
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CPU memory capacity (project capacity + user memory capacity) |
128 MB |
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Variables |
Capacity |
Overall |
124 MB |
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Retained |
3.5 MB |
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Max. count |
Overall |
200000 |
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Retained |
100000 |
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Data type |
BOOL, UINT, INT, UDINT, DINT, REAL, LREAL, TIME, STRING, ARRAY, structure, union, function block |
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Array |
Maximum number of elements per dimension |
1040187392 |
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Maximum number of dimensions |
8 |
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Maximum occupiable data size per array |
65011712 words |
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Specifiable data types |
BOOL, UINT, INT, UDINT, DINT, REAL, LREAL, TIME, STRING, structure, union, function block |
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Specifiable subscripts |
Devices, constants, variables, calculations *3 *4 |
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Subscript-compatible data types |
UINT, INT, UDINT, DINT |
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Structure/Union |
Maximum number of definitions |
8000 |
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Maximum number of members per definition |
2048 |
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Maximum number of nested steps |
8 *5 |
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Specifiable data types |
BOOL, UINT, INT, UDINT, DINT, REAL, LREAL, TIME, STRING, array, structure, union |
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Devices |
Capacity |
1.5 MB |
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Types |
Input relay R |
Total: 32,000 points, 1 bit (R00000 to R199915) |
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Output relay R | ||||
Internal auxiliary relay R | ||||
Link relay B |
32,768 points, 1 bit (B0000 to B7FFF) |
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Internal auxiliary relay MR |
64,000 points, 1 bit (MR000000 to MR399915) |
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Latch relay LR |
16,000 points, 1 bit (LR00000 to LR99915) |
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Timer T |
4,000 points, 32 bits (T0000 to T3999) |
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Counter C |
4,000 points, 32 bits (C0000 to C3999) |
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Control memory CR |
1,280 points, 1 bit (CR0000 to CR7915) |
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Data memory DM |
65,535 points, 16 bits (DM00000 to DM65534) |
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Expansion data memory EM |
65,535 points, 16 bits (EM00000 to EM65534) |
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File register FM |
32,768 points, 16 bits (FM00000 to FM32767) |
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File register (dial mode) ZF |
524,288 points, 16 bits (ZF000000 to ZF524287) |
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Link register W |
32,768 points, 16 bits (W0000 to W7FFF) |
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Temporary memory TM |
512 points, 16 bits (TM000 to TM511) |
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Index register Z |
10 points, 32 bits (Z1 to Z10) |
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Control memory CM |
7,600 points, 16 bits (CM0000 to CM7599) |
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Scan time setting |
Fixed scan time operation |
0.10 to 200.00 ms (units of 0.01 ms) |
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Fixed-period module |
0.05 to 6000.00 ms (units of 0.01 ms), or 0.01 to 60.00 s (units of 0.01 s) |
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System |
Maximum number of installable units |
16 units (KV-8000/7000 Series expansion unit only)/48 units (KV-8000/7000 Series expansion unit, KV-5000/3000 Series expansion unit (when KV-EB1 is used)) |
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CPU unit I/O points |
― |
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Maximum number of I/O points |
3072 points (64-point unit × 48) |
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Power failure hold function |
Program memory |
Flash ROM can be written 10000 times |
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Variables/Devices |
Non-volatile RAM |
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Calendar timer |
Backup capacitor lasts approx. 15 days (at 25°C 77°F) and approx. 5 years with KV-B1 (battery) (at 25°C 77°F) |
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Self-diagnosis function |
CPU error, RAM error, and other problems |
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*1 Compliant with JIS B 3502 and IEC 61131-2, No. of sweeps: 10 times in each of the X, Y, and Z directions (for 100 minutes) | ||||
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
Regardless of where the product is shipping from, PLC Direct covers all duties for US-based shipping destinations. For non-US-based shipping destinations, customers are responsible for duties as appropriate.
PLC Direct's focus is on balancing price with lead time. Some but not all products can be expedited. If you have questions about delivery ETAs, please contact our team.

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