Efficient Networks S120 manual Properties, Servo control Torque setpoint limitation

Servo control

3.5 Torque setpoint limitation

		LTOLPLWDWLRQFXWVRIIRYHUVKRRWLQJ
		RIWKHILOWHU
	6HWSRLQWRIWKHWRUTXHJHQHUDWLQJFXUUHQW	\			LTBVHWB
	LTBVHWB
	>@		[		U
		>$@		0
	(IIHFWLYHWRUTXHOLPLWV>1P@	7KHTXDGUDQWV			
	U				
	>@
					)RU
			EDFN
			ZDUGV		ZDUGV
	U		JHQHUDWLQJ		PRWRULQJ
		ದ				Q
	>@
			5HYHUVH		)RUZDUGV
	7RUTXHIDFWRU0LT		PRWRULQJ		JHQHUDWLQJ
	>@				
					ದ
Figure 3-8	Current/torque setpoint limiting

Note

This function is effective immediately without any settings. The user can also define further settings for limiting the torque.

Properties

The connector inputs of the function are initialized with fixed torque limits. If required, the torque limits can also be defined dynamically (during operation).

●A control bit can be used to select the torque limitation mode. The following alternatives are available:

–Upper and lower torque limit

–Motor and regenerative torque limit

●Additional power limitation configurable

–Motor mode power limit

–Regenerative mode power limit

●The following factors are monitored by the current controller and thus always apply in addition to torque limitation:

–Stall power

–Maximum torque-generating current

●Offset of the setting values also possible (see "Example: Torque limits with or without offset").

●The following torque limits are displayed via parameters:

–Lowest of all upper torque limits with and without offset

–Highest of all lower torque limits with and without offset

72	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4