Manual MSD2
+
MA 2126
–A005 EN
48
11.1.3 Boost Input
If the optocoupler is energised, the MSD2
+
increases the run and stop current by the value
programmed in the ServiceBus.
This allows the motor to switch to boost current during the acceleration or deceleration
phase and thus achieve a higher torque.
As long as the boost input is activated, the higher current always flows.
This also applies if the power stage has switched to stop current.
In the rotary switch mode, the boost function can also be permanently switched on via the
BOOST DIP switch. See also Appendix A2.
In ServiceBus mode, the boost current has the value programmed by the user
(from 0 to 11 A
r.m.s.
).
11.1.4 Deactivation Input
If the input is activated, the motor current is switched off.
This input (pin 4/17) is useful, for instance, during maintenance operations to switch the
power stage off, without having to disconnect it physically from the mains. It is possible
now to rotate the motor by hand slowly.
WARNING!
The Deactivation input is not in conformance with the professional emergency
stop circuit requirements.
The Deactivation input may also be used to avoid the inevitable electrical noise emissions
of the power stage, e.g. if you have to perform sensitive electrical measurements in the
environment of the device.
