Yaskawa G7 Drive User Manual download pdf (Page 419)

9-4

 Common Specifications

The following specifications apply to both 200-240 V and 380-480 V Class Drives.

* 1. Rotational autotuning must be performed to ensure obtaining the specifications given for flux vector control and open-loop vector control 1 and 2.

* 2. When connecting a Braking Resistor or Braking Resistor Unit, set L3-04 (Stall prevention selection during deceleration) to 0 (disabled). Stopping may not be pos-

sible in the specified deceleration time if this function is not disabled.

* 3. The maximum output frequency for open-loop vector control 2 is 60 Hz.

Table 9.3 Common Specifications

Model Number

CIMR-G7U 

Specification

Control method

Sine wave PWM

Flux vector control, open-loop vector control 1 or 2, V/f control without PG, V/f control with PG (switched by parameter setting)

Torque characteristics

150%/0.3 Hz (Open-loop vector control 2), 150%/0 min

−1

(Flux vector control)

Speed control range

1:200 (Open-loop vector control 2), 1:1000 (Flux vector control)

Speed control accuracy ±0.2% (Open-loop vector control, 25°C ± 10°C), ±0.02% (Flux vector control, 25°C ± 10°C)

Speed control response 10 Hz (Open-loop vector control 2), 30 Hz (Flux vector control)

Torque limits Provided for vector control only (4 quadrant steps can be changed by parameter settings.)

Torque accuracy ±5%

Frequency control range

0.01 to 400 Hz

Frequency accuracy (tem-

perature characteristics)

Digital references: ± 0.01% (-10°C to +40°C)

Analog references: ±0.1% (25°C ±10°C)

Frequency setting resolu-

tion

Digital references: 0.01 Hz, Analog references: 0.03 Hz/60 Hz (11 bit with no sign)

Output frequency resolu-

tion

0.001 Hz

Overload capacity and

maximum current

150% of rated output current per minute, 200% for 5 s

Frequency setting signal -10 to 10 V, 0 to 10 V, 4 to 20 mA, pulse train

Acceleration/Decelera-

tion time

0.01 to 6000.0 s (4 selectable combinations of independent acceleration and deceleration settings)

Braking torque

Approximately 20% (Approximately 125% with Braking Resistor option, braking transformer built into 200-240 V and 380-480

V Class Drives for 15 kW or less.)

Main control functions

Restarting for momentary power loss, speed searches, overtorque detection, torque limits, 17-speed control (maximum), accelera-

tion/deceleration time changes, S-curve acceleration/deceleration, 3-wire sequence, autotuning (rotational or stationary), dwell

functions, cooling fan ON/OFF control, slip compensation, torque compensation, jump frequencies, upper and lower limits for

frequency references, DC braking for starting and stopping, high-slip braking, PID control (with sleep function), energy-saving

control, MODBUS communications (RS-485/422, 19.2 kbps maximum), fault reset, function copying, droop control, torque con-

trol, speed/torque control switching, etc.

Motor protection UL recognized protection by electronic thermal overload relay.

Instantaneous overcurrent

protection

Stops at approx. 200% of rated output current.

Fuse blown protection Stops for fuse blown.

Overload protection 150% of rated output current per minute, 200% for 5 s

Overvoltage protection

200-240 Class Drive: Stops when main-circuit DC voltage is above 410 V.

380-480 Class Drive: Stops when main-circuit DC voltage is above 820 V.

Undervoltage protection

200-240 Class Drive: Stops when main-circuit DC voltage is below 190 V.

380-480 Class Drive: Stops when main-circuit DC voltage is below 380 V.

Momentary power loss

ridethrough

Stops for 15ms or more.

By selecting the momentary power loss method, operation can be continued if power is restored within 2 s.

Cooling fin overheating Protection by thermistor.

Stall prevention Stall prevention during acceleration, deceleration, or running.

Grounding protection Protection by electronic circuits.

Charge indicator Lit when the main circuit DC voltage is approx. 50 V or more.

Ambient operating tem-

perature

-10°C to 40°C (Enclosed wall-mounted type)

10°C to 45°C (Open chassis type)

Ambient operating humid-

ity

95% max. (with no condensation)

Storage temperature - 20°C to + 60°C (short-term temperature during transportation)

Application site Indoor (no corrosive gas, dust, etc.)

Altitude 1000 m max.

Vibration

Tolerance for vibration frequency less than 20 Hz, 9.8 m/s

max.; 20 to 50 Hz, 2 m/s

max

Control characteristics

Protective functions

Environment

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Yaskawa G7 Drive User Manual Page 419

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