Peripheral Devices Varispeed AC Power Supply Molded-Case Circuit Breaker or Earth Leakage Breaker Magnetic Contactor (MC) Input Noise Filter Option Cards/Peripheral Devices Zero-Phase Reactor MxC Grounding Output Noise Filter Zero-Phase Reactor Motor : Use an earth leakage breaker which has harmonics protection and a minimum current of 30 mA per MxC. Otherwise, the harmonic leakage current may cause a malfunction. If a malfunction occurs in an earth leakage breaker without harmonic protection, lower the carrier frequency of the MxC, replace the earth leakage breaker with one that has harmonic protection, or raise the current of the earth leakage breaker to 200 mA or more per MxC.
(Example) Mitsubishi Electric Corporation NV series (those produced after 1988 ) Fuji Electric FA Components & Systems Co., Ltd. EG, SG series (those produced after 1984) Grounding 21 Purpose Name Model (Code) Descriptions Ref.Page Protects the MxC wiring MCCB or Earth Leakage Breaker NF Always connect a breaker to the power supply line to protect the MxC wiring. P22 Prevents burning of the MxC Magnetic Contactor SC series Install to prevent the MxC from burning out when faults occur at the input terminal side of the MxC. Always attach a surge absorber to the coil. P22 Contains switching surge Surge Suppressor DCR2- Absorbs surge from the magnetic contactor and control relays.
Connect surge suppressors to all magnetic contactors and relays near the MxC. P22 Isolates I/O signals Isolator DGP Isolates the I/O signals of the MxC and is enabled against inductive noise. P28 Reduces the effects of radio and control device noise Input Noise Filter LNFD- FN- Reduces noise coming into the MxC from the power supply line and noise flowing from the MxC into the power supply line. Connect as close to the MxC as possible. P23 Finemet Zero-Phase Reactor to Reduce Radio Noise F6045GB (FIL001098) F11080GB (FIL001097) Reduces noise coming into the MxC from the power supply line and noise flowing from the MxC into the power supply line. Insert as close to the MxC as possible.
Can be used on both the input and output sides. P26 Output Noise Filter LF- Reduces noise generated by the MxC. Connect as close to the MxC as possible. P25 Operates the MxC externally VS Operator (Small Plastic Operator) JVOP-95 (73041-0905X- ) Allows frequency reference settings and ON/OFF operation control to be performed by analog references from a remote location (50 m max). Frequency counter specifications: 60/120 Hz, 90/180Hz − VS Operator (Standard Steel- Plate Operator) JVOP-96 (73041-0906X- ) Allows frequency reference settings and ON/OFF operation control to be performed by analog references from a remote location (50 m max) Frequency counter specifications:
75 Hz, 150 Hz, 220 Hz − Digital Operator Extension Cable 1 m cable: (WV001) 3 m cable: (WV003) Extension cable to use a digital operator remotely. Cable length: 1 m or 3 m P26 Controls the MxC system VS System Module JGSM- A system controller that can be matched to the automatic control system to produce an optimum system configuration. Document No. : TSE-C730-30 − Saves the momentary power loss compensation time of the MxC Back-up Capacitor Unit for Momentary Power Loss P00 0 (73600-P00 0) Safety measure taken to protect against momentary power loss of the control power supply. Document No. :
TOE-C736-50.6 P28 Sets/monitors frequencies sand voltages externally Frequency Meter DCF-6A Devices to set or monitor frequencies externally. P27 Frequency Setting Potentiometer RV30YN20S 2kΩ (RH000739) Frequency Setting Knob CM-3S Output Voltmeter SCF-12NH Devices to measure the output voltage externally. P27 Corrects frequency reference input, frequency meter, ammeter scales Potentiometer for Frequency Reference 2 kΩ (ETX003270) 20 kΩ (ETX003120) Connected to the control circuit terminals to input a frequency reference. P27 Frequency Meter Adjusting Potentiometer RV30YN20S 20 kΩ (RH000850) Calibrates the scale of frequency meters and ammeters. P27