Hyundai HI4 - Manual (Page 40)

1. Safety, Operation Panel, Teach Pendant (1) Safety
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1.1.10.6. Monitoring Function
1) Motor Monitoring Function
The motors are protected against overload by means of temperature sensors in the
motor windings.
2) Voltage Monitoring Function
For the protection of power devices such as transistor etc. the servo amp module
automatically triggers off the power switch when the voltage is too low or high.
1.1.11 Safety Related to End Effectors
1.1.11.1 Gripper
(1) When a gripper is used to grip a workpiece, the relevant measure for preventing
from the unexpected dropping of the loaded workpiece due to loose gripper design
must be taken by users.
(2) When any end effectors or devices are installed on robot arm, the followings must
be observed by users.
- Use the required size and quantity of bolt.
- Securely fasten as per the required torque by using torque wrench.
- Do not use the bolt which have rust or dirt.
(3) End effector must be designed and manufactured not to exceed the maximum allowable
load at the wrist of robot. Even though power or air supply stop, the gripped
workpiece must not be dropped from the gripper. In order to remove any risks and
problems which cause personal injury and/or physical damage, the sharp edge and
projection part of end effector must be made dull and smoothly.