SAFETY GUIDE
3
Precautions when using a driver
NOTICES ON DESIGN
BE SURE TO READ THE MANUAL FOR DESIGNING.
Always use drivers under followings conditions:
The driver generates heat. Take extra caution for radiation and use it under the
following conditions.
- Mount in a vertical position keeping sufficient distance.
- 0 to 50℃, 95% RH or below (Non condensation)
- No vibration or shocks
- No metal powder, dust, oil mist, corrosive gas, or explosive gases
Use sufficient noise suppressing means and safe grounding.
Any noise generated on a signal wire will cause vibration or improper motion.
Be sure to observe the following conditions.
- Keep signal and power leads separated.
- Keep leads as short as possible.
- Ground actuator and driver at one single point, minimum ground resistance
class: D (less than 100 ohms)
- Do not use a power line filter in the motor circuit.
Pay attention to negative torque by inverse load.
- Inverse load may cause damages of direct drive motor.
Please consult our sales office, if you intend to apply products for inverse
load.
Use a fast-response type ground-fault detector designed for
PWM inverters.
When using a fast-response type ground-fault detector, use one that is
designed for PWM inverters. Do not use a time-delay-type ground-fault
detector.
If this product is utilized in any facility in which human life is
at stake or that may incur material losses, install safety
devices so that accidents will not occur even when the
output control is disabled due to damage.
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