Schneider Electric altivar 58 telemecanique, vw3-a58101 manual No-Yes

GP_ATV58_EN.fm Page 83 Mardi, 2. avril 2002 6:09 18

Drive Menu

Code	Description		Adjustment range	Factory setting
tLI	Trq.Limit	_ %	0 to 200% (1)	200%
	The torque limit is used to limit the maximum motor torque.
CLI	nt. I Lim -	A	0 to 1.36 In (2)	1.36 In
	The current limit is used to limit motor overheating.
AdC	Auto DC Inj.		No-Yes	Yes
	Used to deactivate automatic DC injection braking on stopping.
PCC	Motor P Coef		0.2 to 1	1

Defines the relationship between the speed controller nominal power and a less powerful motor when a logic input has been assigned to the motor switching function.

SFt Sw Freq. Type LF-HF1-HF2 LF

Used to select a low switching frequency (LF) or a high switching frequency (HF1 or HF2). HF1 switching is designed for applications with a low load factor without derating the speed controller. If the thermal state of the speed controller exceeds 95 %, the frequency automatically changes to 2 or 4 kHz depending on the speed controller rating. When the thermal state of the speed controller drops back to 70 %, the selected switching frequency is re-established. HF2 switching is designed for applications with a high load factor with derating of the speed controller by one rating : the drive parameters are scaled automatically (torque limit, thermal current, etc).

Modifying this parameter results in the following parameters returning to factory settings :

•nCr, CLI, Sfr, nrd (Drive menu)

•ItH, IdC, Ibr, Ctd (Adjust menu).

SFr Sw Freq. - kHz 0.5-1-2-4-8-12-16 kHz acc. to controller rating

Used to select the switching frequency. The adjustment range depends on the SFt parameter. If SFt = LF : 0.5 to 2 or 4 kHz acc. to the controller rating

If SFt = HF1 or HF2 : 2 or 4 to 16 kHz acc. to the controller rating

The maximum operating frequency (tFr) is limited according to the switching frequency :

	SFr(kHz)	0.5	1	2	4	8	12	16
	tFr (Hz)	62	125	250	500	500	500	500
nrd Noise Reduct				No-Yes			(3)

This function modulates the switching frequency randomly to reduce motor noise.

SPC Special motor No-Yes No

This function with "yes" extends the adjustment range for the UFr parameter in the adjust menu for adaptation to the special motors mentioned at the start of this section. Can only be accessed in the "Handling" and "General use" macro-configurations.

NO : normal motor

YES : special motor

PSM : small motor

(1)100% corresponds to the nominal torque of a motor with a power rating equal to that associated with the speed controller for "high torque" applications.

(2)In corresponds to the speed controller nominal current indicated in the catalog and on the speed controller identification label for "high torque" applications.

(3)Yes if SFt = LF, No if SFt = HF1 or HF2

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