HP 30 30 EXT-12 Usage of Pulse Input Signal Sub-B, EXT-13 Real Motor Speed Direction, Feed-back

Chapter 6 - Parameter Description [EXT]

Related Functions: DRV-04 [Frequency Mode] I/O-01 ~ I/O-05 [V1 Adjustment]

EXT-12: Usage of Pulse Input Signal – Sub-B

EXT►	F mode		14	0
14	None
Factory Default:		None		0

This function is to select the usage of encoder pulse signal of ‘Sub-B’ board. The pulse signal from encoder can be used as the motor speed feedback or frequency reference. When ‘Sub-B’ board is installed, FU2-40 must be set to ‘V/F’.

[None]

The encoder pulse signal is not used.

[Feed-back]

The encoder pulse signal is used as the motor speed feedback. The inverter can maintain the motor speed constantly, regardless of the load fluctuation, by using the encoder feedback. The encoder pulse related functions must be set correctly for better performance in EXT-15 ~ EXT-24.

Related Functions: EXT-15 [Pulse Input Signal selection] EXT-16 [Encoder Pulse Number] EXT-22 [P-Gain for ‘Sub-B’] EXT-23 [I-Gain for ‘Sub-B’] EXT-24 [Slip Frequency for ‘Sub-B’]

[Reference]

The encoder pulse signal is used as the frequency reference. When this function is selected, the frequency reference selected in DRV-04 is ignored. Reference Frequency versus Pulse Input Curve can be made by four parameters of EXT-18 ~ EXT-20.

Reference Frequency
EXT-21
EXT-19
		Pulse Input
EXT-18	EXT-20	(0 to 10 kHz)

[Reference Frequency vs. Pulse Input]

Related Functions: EXT-15 [Pulse Input Signal selection] EXT-17 [Filtering Time Constant] EXT-18 [Minimum Pulse Frequency] EXT-19 [Minimum Output Frequency] EXT-20 [Maximum Pulse Frequency] EXT-21 [Maximum Output Frequency]

EXT-13: Real Motor Speed Direction

EXT►	RealSpdDir		13	0
13	None
Factory Default:		None		0

If EXT-12 is set to 1 Feed-back with SUB-B mounted, motor rotation direction is displayed in this parameter.

EXT-14: Encoder Feedback Frequency

EXT►	ENC FeedBack		14	0
14	None
Factory Default:		None		0

Read frequency regardless of control mode if SUB-B is installed with EXT-12 set to Feed-back.

EXT-15: Pulse Input Signal Selection – Sub-B

EXT►	F pulse set		15	0
15	A + B
Factory Default:		A + B		0

This code sets the encoder pulse to use. [A+B] uses two encoder signal lines of A and B, and [A] uses one encoder signal line of A or B. –[A+B] is used when encoder and mot or rotation direction is opposite.

6-55