Fuji Bikes 5000G11S/P11S H25 PID control Feedback filter, Setting range 0.0 to 60.0 seconds

-To suppress vibration with a frequency roughly equivalent to the value "H24 D-gain," decrease the value of H24. If there is residual vibration with 0.0, decrease the value of "H22 P-gain."

	Before
	adjustment
Response	After
	adjustment
	Time

H25 PID control (Feedback filter)

‹This filter is for feedback signal input from terminal [12] or [C1]. This filter stabilizes operation of the PID control system. A set value that is too large, however, deteriorates response.

	H	F	B	F	I	L	T	E	R
Setting range: 0.0 to 60.0 seconds
H26		PTC thermistor (Mode select)

‹Set this function active when the motor has a PTC thermistor for overheat protection

H	2	6	P	T	C	M	O	D	E
Set	value		0:	Inactive

1:Active

‹Connect the PTC thermistor as shown in the figure below.

Turn on switch “PTC” on the control PCB.

The trip mode is activated by “OH2:External thermal relay tripped.”

Internal resistance of

PTC thermistor

Rp2

Rp1

AlarmTemperature temperature

The figure in "H26 PTC thermistor (Mode select)," shows that resistor 250Ω and the thermistor (resistance value Rp) are connected in parallel. Hence, voltage Vc1 (Level) at terminal [C1] can be calculated by using the following formula.

		250・Rp
Vc1 =		250 + Rp		⋅10［V］
	1000 +		250・Rp
			250 + Rp

The operation level can be set by bringing Rp in the Vc1 calculation formula into the following range.

Rp1 < Rp < Rp2

To obtain Rp easily, use the following formula.

Rp = Rp1 + Rp［2 Ω］ 2

H28 Droop operation

When two or more motors drive a single machine, a higher load is placed on the motor rotating the fastest. Droop operation achieves a good load balance by applying drooping characteristics to speed against load variations.

Auto tuning(P04: 2) should be done to use this function. This function cannot be used when the motor 2 is selected. The drooping speed at constant torque is set.

13 PTC

ON OFF

1k Ohom

DC10V

Set value : -9.9Hz to 0.0Hz

H 2 8 D R O O P

Characteristics of the motor

PTC thermistor

C1
Resistor	H27
250 Ohom	(Level)

11

0V

Comparator

OH2

When droop operation is active

Torque

Rated torque

(drive)

0

Setting value of H28

When droop operation is inactive

Freq. setting

Speed

H27 PTC thermistor (Level)

‹The voltage input to terminal [C1] is compared to the set voltage (Level). When the input voltage is equal to or greater than the set voltage (Level), "H26 PTC thermistor

Rated torque

(brake)

Setting value of H28

(Mode select)," starts.

H 2 7 P T C L E V E L

Setting range: 0.00 to 5.00V

‹The PTC thermistor has its own alarm temperature. The internal resistance value of the thermistor largely change at the alarm temperature. The operation (voltage) level is set using this change in the resistance value.

		Acc/Dec calculation
Freq.	+	+	Output
setting			freq.
value
	+		+
	H28	Droop freq.	P09 Slip compensation freq.
				Torque calculation
			τ	+ : drive
		Feedback amount		- : brake

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