OMRON Power Supply Other Measurement & Monitoring Relay K8AB Series Safety Precautions for the K8AB Series

Safety Precautions for the K8AB Series

CSM_K8AB_series_CN_E_2_1

Precautions for Safe Use About Installation Make sure to follow the instructions below to ensure safety. 1. When wiring, use only recommended crimp terminals. 2. Do not block areas around the product for proper dissipation of

1. Do not use or keep this product in the following environments.

heat. (If you do not secure space for heat dissipation, life cycle of

Outdoors, or places subject to direct sunlight or wearing

the product will be compromised.)

weather.

3. To avoid electrical shocks, make sure that power is not supplied to

Places where dust, iron powder, or corrosive gases (in the product while wiring. particular, sulfuric or ammonia gas) exist.

4. To avoid electrical shocks, make sure that power is not supplied to Places subject to static electricity or inductive noise. the product when performing DIP switch settings.

Places where water or oil come in contact with the product.

Noise Countermeasures

2. Make sure to install this product in the correct direction. 3. There is a remote risk of electric shock. Do not touch terminals 1. Do not install the product near devices generating strong high while electricity is being supplied. frequency waves or surges. 4. Make sure to thoroughly understand all instructions in the 2. When using a noise filter, check the voltage and current and Instructions Manual before handling this product. install it as close to the product as possible. 5. Make sure to confirm terminal makings and polarity for correct 3. In order to prevent inductive noise, wire the lines connected to the wiring. product separately from power lines carrying high voltages or

6. Tighten terminal screws firmly using the following torque. currents. Do not wire in parallel with or on the same cable as Recommended tightening torque: 0.49 N·m power lines. Maximum tightening torque: 0.54 N·m max. Other measures for reducing noise include running lines along separate ducts and using shield lines.

7. Operating ambient temperature and humidity for this product must be within the indicated rating when using this product.

8. There is a remote risk of explosion. Do not use this product where To avoid faulty operations,

flammable or explosive gas exists.

malfunctions, or failure, observe the

9. Make sure that no weight rests on the product after installation. 10.To enable an operator to turn off this product easily, install following operating instructions. switches or circuit breakers that conform to relevant requirements

of IEC60947-1 and IEC60947-3, and label them appropriately. 1. When turning on the power, make sure to realize rated voltage within 1 second from the time of first supply of electricity. 2. Make sure to use power supply for operations, inputs, and

Precautions for Correct Use

transformer with the appropriate capacity and rated burden. 3. Maintenance and handling of this product may only be performed For Proper Use by qualified personnel. 4. Distortion ratio of input wave forms must be 30% or less. Use of

1. Do not use the product in the following locations. this product with circuits that have large distortion in wave forms

Places subject to radiant heat from heat generating devices. may result in unwanted operations. 5. Error will be large if the K8AB-AS, K8AB-VS or K8AB-VW is used

Places subject to vibrations or physical shocks.

for thyristor or inverter control.

2. Make sure to use setting values appropriate for the controlled The K8AB-PH, K8AB-PM, K8AB-PA, and K8AB-PW cannot be object. Failure to do so can cause unintended operation, and may used for thyristor or inverter control. result in accident or corruption of the product.

6. When setting the adjustment knobs, adjust them from the

3. Do not use thinner or similar solvent for cleaning. Use commercial

minimum value to the maximum value.

alcohol.

7. The K8AB-PM and K8AB-PA detect phase loss when the motor

4. When discarding, properly dispose of the product as industrial power supply is turned ON. Phase loss cannot be detected during waste. motor operation. 5. Only use this product within a board whose structure allows no 8. Phase loss can be detected only from the input contact to the possibility for fire to escape. power supply side by the K8AB-PH, K8AB-PM, and K8AB-PA.

Phase loss cannot be detected from the input contact to the load side.

In the interest of product improvement, specifications are subject to change without notice.