IAI EC-ST15, Instruction Manual

Page: 36 / 210

1.2 Mechanical specifications
1-8
1. Specifications
[Actuator Specifications]
Item Content
Drive system Ball screw φ10mm, rolled C10
Positioning repeatability ±0.15mm
Backlash 0.03mm or less
Range of Stopper Use Max. payload 50kg / max. Transfer speed 40m/min
Allowable Vertical Load 500N
Ambient operating temperature/humidity 0 to 40°C, 85% RH or less (Non-condensing)
[Pressing Force and Current Limit Value]
Caution
The relation of the current value and the pressing force is a guideline at speed of
20mm/s. There is some variance in the actual pressing force. The variance increases
when the current value is low.
The current limit value cannot be set outside the 30 to 70% range.
When the approach speed up to the pressing start position is 20mm/s or less, pressing
operation will take place at approach speed.
When the pressing speed is less than 20mm/s and at 5mm/s or more, it is unlikely to
obtain the pressing force shown in the graph for pressing performance (reference).
Confirm that there is no problem with the pressing force in advance.
When the pressing speed is less than 5mm/s, the pressing force may get unstable,
causing the operation not performed properly. Make sure that the speed is set at 5mm/s
or more even in slow setting.
Correlation of pressing force and current limit value
Pressing force (N)
Current limit value (%)