Toshiba H9 operation manual F318 F322

F318			F322
	Synchronized Acceleration Time	Direct Access Number —	F318
	Program ⇒ Protection ⇒ Undervoltage/Ridethrough	Parameter Type — Numerical
	In the event that the Ridethrough function activates in a multiple-motor	Factory Default — 2.0
		Changeable During Run — Yes
	application it will be necessary to manage the accelerating motors
	synchronously as not to damage the product being processed (e.g., wire spools,	Minimum — 0.10
	bobbin winder for textile machines, etc.).	Maximum — 6000
	This parameter is used to minimize the product breakage during a momentary	Units — Seconds
	power outage. This function orchestrates the acceleration of multiple machines
	simultaneously or makes them reach their respective command frequencies
	simultaneously by regulating their acceleration times.
	See parameter F302 for more information on this setting.
	Drooping Gain	Direct Access Number —	F320
	Program ⇒ Feedback ⇒ Drooping Control	Parameter Type — Numerical
	This parameter sets the effective 100% output torque level while operating in	Factory Default — 0.0
		Changeable During Run — Yes
	the Drooping Control mode. This value is the upper torque limit of the motor
	being driven by a given ASD while operating in the Drooping Control mode.	Minimum — 0.00
	Note: The maximum frequency output is not limited by the setting of	Maximum — 100.0
		Units — %
	F011 while operating in the Drooping Control mode.
	Drooping
	Drooping Control, also called Load Share, is used to share the load among
	two or more mechanically coupled motors. Unlike Stall, which reduces the
	output frequency in order to limit the load once the load reaches a preset level,
	Drooping can decrease or increase the V/f setting of a motor to maintain a
	balance between the output torque levels of mechanically coupled motors.
	Because of variances in gearboxes, sheaves, belts, motors, and since the speed
	of the motor is constrained by the mechanical system, one motor may
	experience more load than its counterpart and may become overloaded.
	Drooping Control allows the overloaded motor to slow down, thus shedding
	load and encouraging a lightly-loaded motor to pick up the slack. The goal of
	Drooping Control is to have the same torque ratios for mechanically coupled
	motors.
	Speed at 0% Drooping Gain	Direct Access Number —	F321
	Program ⇒ Feedback ⇒ Drooping Control	Parameter Type — Numerical
	This parameter sets the motor speed when at the 0% output torque gain while	Factory Default — 0.00
		Changeable During Run — Yes
	operating in the Drooping Control mode. This function determines the lowest
	speed that Drooping will be in effect for motors that share the same load.	Minimum — 0.00

Maximum — 320.0

Units — Hz

Speed at F320 Drooping Gain

Program ⇒ Feedback ⇒ Drooping Control

This parameter sets the motor speed when at the 100% output torque gain while operating in the Drooping Control mode. This function determines the speed of the individual motors at the 100% Drooping Gain setting for motors that share the same load.

Direct Access Number — F322

Parameter Type — Numerical

Factory Default — 0.00

Changeable During Run — Yes

Minimum — 0.00

Maximum — 320.0

Units — Hz

H9 ASD Installation and Operation Manual 139