Spec Of Yaskawa Ac Vari Fre Drive

SPECIFICATION OF AC VARIABLE FREQUENCY DRIVE : YASKAWA-F7 SERIES Input supply voltage Input supply frequency Maximum frequency ( Variable) Rated input voltage and frequency Allowable input voltage and frequency Allowable voltage fluctuation Control method

Starting torque Speed control range Speed control accuracy Speed response Torque limit Carrier frequency Frequency control range Frequency accuracy Frequency setting resolution Output freq. resolution Overload capacity

Frequency setting signal Accel / Decel time Braking torque

3-Phase, 380/400/415/440/460/480 V 47 to 53 Hz CT mode : 0 to 150 Hz, VT mode : 400 Hz (selectable) 3-Phase, 380/400/415/440/480 V, 50/60 Hz -15% to +10% +5% Sine wave PWM [Open loop vector, V/f, V/f with PG control (selectable)] 150% at 0.5 Hz (Open loop vector control, CT mode), 120% at 0.5 Hz (Open loop vector control, VT mode) 1:100 (Open loop vector control) 1:1000(flux control mode, encoder reqd.) +0.2%(Open loop vector control at 25oC + 10oC) 5 Hz (Open loop vector control) Can be set by parameter : 4 steps available (in open loop vector control) 1 kHz to 15 kHz CT mode : 0.01 to 150 Hz, VT mode : .01 to 400 Hz Digital reference : +0.01%, -10 to 40oC, Analog reference : +0.1%, 25 +10oC Digital reference : +0.01 Hz, Analog reference : 0.03 Hz / 60 Hz (10-bit, no code) 0.001 Hz CT mode : 150% rated output current for 1 minute (not available when using 220 to 300 kW inverters), VT mode : 110% rated output current for 1 minute 0 to 10 V, 4 to 20 mA, Pulse train 0.01 to 6000 secs. (Accel/Decel time setting independently, 4 steps available) Approx. 20% (Approx. 125% when using braking resistor)

Main control functions

Digital/analog I/O ports

Pulse I/O Communication Protective function

Working ambient temperature

Fault log Humidity Filters

Momentary power loss restart, Speed search, Overtorque detection, Torque limit, 16-step operation (max), Accel/Decel time changeover, S-curve accel/decal, 3-wire sequence, Auto-Tuning (dynamic. Static), DWELL, Cooling fan ON/OFF, Slip compensation, Jump frequency, Frequency upper/lower limit settings, DC injection braking at start/stop, High slip braking, PID control (with sleep function), Energy-saving control, Fault retry, Constant copy, etc. Three Analog input (two programmable) Two Analog output, Eight Digital input(six Programmable), three digital output Qne pulse Input and Output each (30 kHz max.) MEMOBUS/MODBUS communication (RS-485/422 max. 19.2 kbps), RS 232 provided Motor overload protection, Inverter overload, Fuse Protection, Instantaneous overcurrent, Open phase, Undervoltage, Overvoltage, Ground fault, Fin overheat, Stall prevention, etc. -10 to 60 degree C, Drive ratings are for 45 degree C, However drive will able to work at 50 degree C at full load current i.e. 125Amp for 55kw & 92.5 Amp for 55kw motors. Last fault 90% RH or less (non-condensing) Suitable filters to restrict output spikes to maximum of 600V/0.10Sec