Mitsubishi FX3UC Series User Manual

390
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
12 Test Operation, Adjustment, Maintenance and Troubleshooting
12.4 Maintenance
2) FX Series terminal blocks
→ For the applicable models, refer to Subsection 1.4.9.
The standard life of contacts used for Inductive loads, such as contactors and solenoid valves, is 500,000
operations at 35VA.
The following table shows the approximate life of a relay based on the results of an operation life test.
Test condition: 1 sec. ON/1 sec. OFF
The product life of relay contacts becomes considerably shorter than the above conditions when the rush
overcurrent is shut down.
Please refer to the following measures regarding the inductive load.
→ For precautions on the main unit, Input/output
extension block, refer to Subsection 6.3.4-2.
→ For precautions on inductive loads for the terminal block, refer to
Subsection 8.8.4-2.
Some types of inductive loads generate rush current 5 to 15 times the stationary current at activation.
Make sure that the rush current does not exceed the current corresponding to the maximum specified
resistance load.
2. Lamp load
Lamp loads generally generate rush current 10 to 15 times the stationary current. Make sure that the rush
current does not exceed the current corresponding to the maximum specified resistance load.
3. Capacitive load
Capacitive loads can generate rush current 20 to 40 times the stationary current. Make sure that the rush
current does not exceed the current corresponding to the maximum specified resistance load. Capacitive
loads such as capacitors may be present in electronic circuit loads including inverters.
* About the maximum load specifications of the resistance load, refer to the specification for each model.
→ For specifications on the input/output extension blocks, refer to Subsection 6.3.1.
→ For specifications on the terminal block, refer to Subsection 8.8.1.
Load capacity Contact life
35VA
0.35A/100V AC
3,000,000 times
0.17A/200V AC
80VA
0.8A/100V AC
1,000,000 times
0.4A/200V AC
120VA
1.2A/100V AC
200,000 times
0.6A/200V AC

Mitsubishi FX3UC Series Specifications

General

Brand	Mitsubishi
Model	FX3UC Series
Category	Controller
Language	English