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Summary of Contents for Daiichi Electronics PFQ-6
- Page 1 PFQ-220-045 INSTRUCTION MANUAL AUTOMATIC 3PHASE POWER-FACTOR REGULATOR PFQ-6 PFQ-3...
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Page 2: Safety Precautions
PFQ-220-045 Thank you for purchasing DAIICHI ELECTRONICS product. Please read this instruction manual carefully before using. Safety precautions Environment conditions Please be sure to use this product in a place that meets the following conditions. In places that do not meet this condition, malfunctions and failures, and performance and product life may be reduced. - Page 3 Aluminum electrolytic capacitors are used in products. Please energize the power supply within one year after purchase. Countermeasures against troubles If trouble occurs within the warranty period, DAIICHI ELECTRONICS will repairs this product. Disposal Please dispose this product as industrial waste (non-combustible).
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Page 4: Table Of Contents
PFQ-220-045 Contents Safety concerns ･･････････････････････････････････････････････････････････････････ 1 1. Product outline 1.1 Usage of product ･･････････････････････････････････････････････････････････ 4 1.2 Features of product ･･･････････････････････････････････････････････････････ 4 1.3 Composition of type ･･･････････････････････････････････････････････････････ 4 2. Handling explanation 2.1 Outline dimension ･････････････････････････････････････････････････････････ 5 2.2 Mounting method ･･･････････････････････････････････････････････････････････ 6 2.3 Connection ････････････････････････････････････････････････････････････････... -
Page 5: Product Outline
1.3 Composition of type PFQ- (1) － (2) (3) (4) Type Specification code (1) Capacitor circuits (2) Model (3) Rated current (4) Control power supply 6：6 circuits B：Model B 1：5A 1：AC85 to 253V 3：3 circuits 2：1A DC80 to 143V PFQ-6 PFQ-3... -
Page 6: Handling Explanation
PFQ-220-045 2. Handling explanation 2.1 Outline dimension Terminal cover Installation tool Panel Cutout 15.5 33-M4screw AUTOMATIC 3PHASE POWER-FACTOR REGULATOR AUTO ％ LEAD kvar TEST LEAD LEAD kvar kvar LIGHT FORCED △LEAD PROPER ▽LAG LOAD BREAK (Dimension of continuous installation) Considering radiation of natural convection of atmosphere, keep space (200mm or more) between each equipment. -
Page 7: Mounting Method
PFQ-220-045 2.2 Mounting method ① Remove the install tool from PFQ. Slide the install tool in the front direction to remove the install tool from the product. Panel ② Install this PFQ in the mounting holes of a panel with a thickness of 6 mm or less. -
Page 8: Connection
PFQ-220-045 2.3 Connection Tighten the terminal screws with a Phillips screwdriver. Tightening torque 1.0 to 1.3N·m 3φ3W unbalanced load PFQ-6 PFQ-3 Externals forced break input Switching control input CE/TE CE/TE Switching control output Switching control output P2 TS/CS COM2... -
Page 9: System Connection Example
PFQ-220-045 ■ Connection diagram when using two units (3φ3W unbalanced load) R S T No.1 No.2 CE/TE CE/TE TS/CS COM2 TS/CS COM2 COM1 COM1 COM3 COM3 LOAD 2.4 System connection example 2.4.1 3-phase 3-wire circuit unbalanced load capacitor 6 circuit example R S T Control power supply ＋... -
Page 10: 3-Phase 3-Wire Circuit Unbalanced Load Capacitor 12 Circuit Example
PFQ-220-045 2.4.2 3-phase 3-wire circuit unbalanced load capacitor 12 circuit example No.1 Control power supply ＋ － ～ ～ CE/TE Auxiliary relay TS/CS COM2 COM1 COM3 No.2 CE/TE Auxiliary relay TS/CS COM2 COM1 COM3 LOAD Capacitor control circuit Capacitor control signal... -
Page 11: Cautions On Connections
・The control output contact (between C1 to C6-COM3 for PFQ-6, C1 to C3-COM3 for PFQ-3) is always exciting output for each capacitor, and it is C1 to C6 (PFQ-6) or C1 to C3 one side of (PFQ-3) is common to COM3 terminal. -
Page 12: Display
PFQ-220-045 3. Display 3.1 Names and functions of each part ① Control state display. AUTO：LED (Green) lights in auto mode and display mode. SET ：LED (Orange) lights in setting mode. TEST：LED (Red) lights in test mode. ② Current value display (Orange LED) Current power factor value / current reactive power value are displayed. -
Page 13: Other Measurement Data Display
PFQ-220-045 3.3 Other measurement data display (Display mode) The measurement data can be displayed by opening the switch cover and performing the following operations. Mode sign display Data display Press for 3 seconds or more at the same time (1) R phase current display (A-1) Press the switches ①... -
Page 14: Setting
PFQ-220-045 4. Setting 4.1 Arrangement of DIP switch and slide switch PFQ-6 ① ② ③ ④ ⑤ ⑥ DIP switch Slide switch PFQ-3 4.2 Slide switch setting (AUTO mode) This switch is a changeover switch for capacitor circuits. Set the "Manual ON", "AUTO", and "Manual OFF" of the capacitor circuit for each capacitor circuit. -
Page 15: Dip Switch Settings
① № ･･････ Switch between NO.1 and NO.2 devices. Normally set to "No. 1". The PFQ-6 controls up to 12 circuits and sets the devices on the C7 to C12 sides to "NO.2". The PFQ-3 controls up to 6 circuits and sets the devices on the C4 to C6 sides to "NO.2". -
Page 16: Key Switch Setting
PFQ-220-045 4.4 Key switch setting （Setting mode） Mode sign display Setting value display Key switch In automatic mode, switch display items. ････････ In setting mode, switch setting items. ････････ Switch between automatic and setting mode. ･･･ Change the setting value in setting mode. Data confirmation switch after setting change. - Page 17 PFQ-220-045 ① VT ratio Ratio of primary rated voltage and secondary rated voltage of VT. (Primary rated voltage / secondary rated voltage) (Example) For 6600/110V, the VT ratio is 60. Please set VT=1, if it inputs direct voltage (AC220V) without using VT. ②...
- Page 18 PFQ-220-045 ⑦ Control system Select the method of closing and breaking the capacitor. Set value 1：Cyclic control (Equal capacity control operation) DIP switch control can be used with "P/F" and "var". Set value 2：Optimal control (Different capacity control operation) DIP switch control can be used with "PF". Set value 3：Priority control (Different capacity control operation) Refer to page DIP switch control can be used with "PF".
- Page 19 PFQ-220-045 Overview of setting operation AUTO AUTO VT ratio code display VT ratio setting DIS- PLAY AUTO CT ratio code display CT ratio setting DIS- PLAY Target power-factor setting AUTO Target power-factor code display Setting is unnecessary when var control is selected.
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Page 20: Special Settings
PFQ-220-045 4.5 Special settings For usage beyond the setting range, use 1/10 of the value actually used. Set value input multiplication factor Item Target power- var control VT ratio CT ratio Conditions factor closing value When the primary voltage 1/10 1/10 is 1/10 1/10... -
Page 21: Key Switch Operation
PFQ-220-045 4.6 Key switch operation Setting mode display Setting value display Mode sign display Operation switch (1) VT ratio setting ① Select SET mode by pressing ① switch ( SET LED is lights). ② The mode sign display shows the VT ratio ( ), and the setting value display shows the current set value (initial value ③... -
Page 22: Control
PFQ-220-045 5. Control 5.1 Power factor control This is a control method that closing and breaking the capacitor in comparison with the set target power factor. From light load to heavy load, it is controlled within the set constant power factor. In other words, it can be controlled with a constant power factor regardless of the load, but depending on the capacitor capacity when the load is light, the power factor may go too far. - Page 23 ＝ -120kvar ･･･ Capacitor breaking by LEAD 120kvar When the secondary current is 0.2A or less, the target power factor is constant at 85%. (PFQ-6, PFQ-3) (Rated current 1A specification is 0.04A or less) Closing control level (LAG kvar) ＝...
- Page 24 PFQ-220-045 (3) Target power factor LEAD 99% or less setting ΔLEAD LED indicate LEAD ΔLEAD detection Breaking control level Proper LED indicate Proper detection Reactive Closing control level power ▽LAG LED indicate ▽LAG detection θ Active power Light load breaking value Target power factor：cosθ...
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Page 25: Reactive Power Control
PFQ-220-045 5.2 Reactive power control This is a control system that closes and breaks the capacitor by comparing it with the set reactive power value. Controls from light load to heavy load within the set reactive power range. Since the closing value and breaking value are set with reactive power, the power factor under light load deteriorates, but hunting can be prevented at light load. -
Page 26: Operation Explanation
(1) Cyclic control is the control system by which the number of times of switching of each capacitor circuit is equalized. (2) Closing sequence starts with C1 at the time of control power closing, and follow below-mentioned sequence. PFQ-6 PFQ-3 C1 → C2 → C3 → C4 → C5 → C6 C1 → C2 → C3 (3) Breaking sequence starts from C1 when the control power is closing, and operates in the same way as the closing sequence. - Page 27 PFQ-220-045 The output action example of power-factor control, target power-factor：LAG 98％, light-load breaking： 200kW, capacitor capacity：100kvar × 6 circuits. ● Closing operation of capacitor (PFQ-6) Reactive power (kvar) Light-load breaking set value 200kW Reactive (Light-load power breaking region) (Capacitor breaking region)
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Page 28: Optimal Control Operation
PFQ-220-045 6.3 Optimal control operation (Control system：2) (1) Optimal control is a control system that selects a capacitor circuit (1 circuit) with the optimum capacity in order to keep the reactive power at that time within the target power factor, and performs closing or breaking control. -
Page 29: Capacitor Replacement Control During Optimal Control Operation
PFQ-220-045 6.4 Capacitor replacement control during optimal control operation Optimal control is suitable for circuits with large load fluctuations. If the load gradually decreases from the state where multiple capacitors are closed, the capacitors with the smallest capacitance are broken in order, and the capacitors with the largest capacitance remain. If the power factor advances in this state and exceeds 95%, the replacement control is performed to break the large capacitor and close the small capacitor. -
Page 30: Priority Control Operation
(2) The closing sequence, starts from C1 when the control power is applied and operates as follows. PFQ-6 PFQ-3 C1 → C2 → C3 → C4 → C5 → C6 C1 →... -
Page 31: Multi Step Control Operation
PFQ-220-045 6.6 Multi step control operation (Control system：4 to 6) (1) Multi-step control is the control system which does closing (or breaking) of the capacitor gradually in the reference capacity unit set by C1. (2) Manual ON or manual OFF capacitors are excluded from multi step control. (This is the control of the capacitor circuit of AUTO control.) (3) There are three types of control systems for multi-step control, and the number of steps can be selected according to the fluctuation range of the load. -
Page 32: Multi Step Control ② (Capacity Ratio 1：2：4：4：4：4)
PFQ-220-045 6.6.2 Multi step control ② (Capacity ratio 1：2：4：4：4：4) Closing Closing order Step number ･･･ C1 (10kvar) ○ ○ ○ ○ ○ ○ C2 (20kvar) ○ ○ ○ ○ ○ C3 (40kvar) ○ ○ ○ ○ ○ ○ ○ Output state of ･･･... -
Page 33: Function
(Excluding capacitors with manual ON setting). Two types of operations are possible depending on the settings. PFQ-6 operation example ① Setting value 1：While the forced breaking input terminals are short-circuited, the capacitors are breaking sequentially every 30 seconds. -
Page 34: Light Load Breaking Operation
PFQ-220-045 7.3 Light load breaking operation To prevent excessive advance power factor at light load, when the active power of the circuit becomes less than the set light load breaking set value, the capacitors that are automatically controlled are breaking in sequence. 1) Cyclic control ････････... - Page 35 Two types of operations are possible depending on the settings. PFQ-6 operation example ① Setting value 1：After the delay time has elapsed, closing or breaking the capacitor. [Operation example with a delay time of 5 minutes]...
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Page 36: Test
PFQ-220-045 7.6 Test When operation check such as capacitor control circuit is performed, DIP switch is set to TEST. When changed to test mode after setting to TEST, capacitor can be closed in following sequence (C1 → C2 → C3 → C4 → C5 → C6) at every delay time (15 seconds) passage and can be breaking in following sequence (C1 →... -
Page 37: Control Operation During Tidal Current
PFQ-220-045 7.10 Control operation during tidal current When the input is ① or ②, the lag power factor and reactive power are measured, and control is performed in the direction of closing the capacitor. When the input is ③ and ④, lead power factor and reactive power are measured and the capacitor is controlled in the direction of breaking. -
Page 38: Inspection And Maintenance
PFQ-220-045 8. Inspection and maintenance 8.1 Error display AUTOMATIC 3PHASE POWER-FACTOR REGULATOR AUTO ％ Error code display LEAD kvar TEST LEAD LEAD kvar kvar Error code Error contents Control state Error recovery conditions Coping process Product failure, Err1 RAM error Control stop －... -
Page 39: Standard Specifications And Performance
PFQ-220-045 9. Standard specifications and performance № Item Standard specifications 3φ3W AC110V, AC220V 50/60Hz Rating 3φ4W AC110/√ 3V 50/60Hz Voltage 3φ3W AC110V：0.25VA, AC220V：0.5VA Consumption VA input 3φ4W AC110/√ 3V：0.15VA Rating AC 5 A 50/60Hz or AC 1 A 50/60Hz Current Consumption VA 0.1VA Non-voltage normally open contact (1a contact) Control switching input... - Page 40 PFQ-220-045 № Item Standard specifications Light load When the active power decreases below the light load breaking value, the breaking value already closing capacitors are breaking in sequence. When the light load Light load (kW) breaking value is set to 0, light load breaking does not work breaking ±0.5％...
- Page 41 PFQ-220-045 № Item Standard specifications 19 Operation state display LEAD (Gain) / LAG (Delay) / PROPER / LIGHT LOAD / FORCED BREAK C1 to C6 or C1 to C3：Control output contact ON：Display is ON. 20 Control output display Control output contact OFF：Display is OFF. 21 Influence of temperature Intrinsic error at 23±10℃...
- Page 42 PFQ-220-045 Tokyo Office : 11-13, Hitotsuya 1-chome, Adachi-ku, Tokyo, 121-8639, JAPAN. TEL：+81-3-3885-2411 , Fax：+81-3-3858-3966 Kyoto Office : 1-19, Ichinobe-Nishikawahara, Jyoyou-shi, Kyoto, 610-0114, JAPAN. TEL：+81-774-55-1391 , Fax：+81-774-54-1353 Revision A, DATE：April 15, 2021...
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