1. Acceleration and deceleration times

• - Because Zip Master has a fast lifting speed, inverter control is required and sufficient acceleration and deceleration time must be provided.
  Sudden acceleration or stopping may result in a decrease in stopping accuracy or vibration of the workpiece.
  ​If Zip Master vibrates when starting and stopping due to the installation surface, arm rigidity, or load conditions, please use it with a longer acceleration/deceleration time.
  Also, if you want to reduce the amount of vibration, consider fixing the top of Zip Master.
• ・ Zip Master speed is the maximum speed. When calculating the lifting time, please include the acceleration and deceleration time in the calculation.
• ・If you need to reduce lifting time, operate frequently, perform multi-point positioning, or perform linked operation, we recommend the servo motor version.
  Please contact us as we can accommodate your desired servo motor manufacturer.

2. Inverter control

• - A large regenerative current is generated when descending, so please provide an inverter regenerative resistor with sufficient capacity based on your usage conditions.
  Please consult the inverter manufacturer regarding the capacity of the regenerative resistor.
• ・ We recommend using an inverter with a capacity one frame larger than the motor.
• - Create a sequence that activates the brake when the inverter trips.

3. Fall prevention

• ・ Zip Master uses a motor with a non-excitation actuated brake. If you are providing your own motor as a servo motor, please use the brake-equipped keyway shaft specification.
  In addition, please prepare your own fall prevention mechanism in case of a fall. We can also manufacture special-order fall prevention pins.

4. Servo motor control

• - A large regenerative current is generated when descending, so please provide a regenerative resistor with sufficient capacity based on your usage conditions.
  Please consult with the servo motor manufacturer regarding the capacity of the regenerative resistor.
• - Even in an emergency, do not use the motor's built-in mechanical brake.
  Be sure to use a control logic that activates the mechanical brake after deceleration by the dynamic brake. For details, refer to the motor manufacturer's instruction manual.

Selection Procedure

• 1. Check that the machine, method of use, and environment are suitable for Zip Master.
• 2. Select a model number from the specifications list (here) that has a rated load that satisfies the lifting load.
  *If the lifting load exceeds the rated load, please consider operating multiple units in conjunction.
  Please contact us regarding the selection and control method for multiple linked operation. High load specifications are also available as special orders, so please contact us.
• 3. Check that the lifting speed is satisfactory for the selected model.
  *We can also accommodate specifications with increased lifting speed, so please contact us for details.
• 4. Check the stroke required.
  *If the stroke exceeds 2m, we can handle it as a special order, so please contact us.
• 5. Check below to see if the allowable overhang load for the selected model is met.

Check the allowable overhang load (OHL)

You can easily select Zip Master by checking the lifting load and center of gravity. As shown in the diagram on the right, the intersection of the lifting load and center of gravity is the allowable overhang load value.

Please see the overhang load curve for each model number (here).

Note

• - When a load is applied to the arm, Zip Master will distort in the direction of the load, and it is necessary to anticipate that the tip of the arm will drop below horizontal. The amount of distortion not only increases with the length of Zip Master 's stroke, but also affects the rigidity of the arm and installation surface.
• - If you want to reduce the amount of distortion or vibration when starting and stopping, consider fixing the top of Zip Master.
• - Please contact us separately for details regarding the amount of distortion of Zip Master.

ZMEL1000M
(Workpiece mounting surface reference: see outline drawing)

For ZMEL1000M

Example 1: When the center of gravity is 500 mm, a load of up to 9.80 kN can be lifted.

Example 2: When the center of gravity is 700 mm, a load of up to 6.86 kN can be lifted.