Specifications
18
4.4
Envelope Of Performance (EOP) Considerations
As earlier described (section
1.3), when operating the driver in the Brake Off mode,
the motor consumes power at all times, even when the control command voltage is
zero, thereby reducing the thermal EOP.
Figure 8 on the next page describes the motor velocity-force curves with the allowed
operation duty cycle and continued operation.
Important
: If a Break Off mode is desired while working in vacuum, the following
operating regime must be maintained: within the specific duty cycle stated in the
chart, once the “maximal continuous operation time” has elapsed, the motor must be
disabled and allowed to cool off for at least 400 seconds.
For example, looking at curve C, in vacuum, with the break off: after 280 seconds of
working at the 45% duty cycle specified, the motor must be disabled for at least 400
seconds to cool off. This is true also if a smaller duty cycle is maintained.
