YASKAWA Varispeed E7 User Manual

9-4


 Common Specifications
The following specifications apply to both 200 V and 400 V Class Inverters.
* 1. Increase the Inverter capacity if loads exceeding these current values are expected.
Table 9.3 Common Specifications
Model Number
CIMR-E7C 
Specification
Control method
Sine wave PWM
V/f control
Speed control range 1:40
Speed control accuracy ±3 – 3% (25°C ± 10°C)
Frequency control range 0.0to 120.0 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: 0.025/50 Hz (11 bits plus sign)
Output frequency resolu-
tion
0.01 Hz
Frequency setting signal 0 to +10V, 4 to 20 mA
Acceleration/Decelera-
tion time
0.01 to 6000.0 s (2 selectable combinations of independent acceleration and deceleration settings)
Braking torque Approximately 20%
Main control functions
Restarting for momentary power loss, speed searches, overtorque detection, 5-speed control (maximum), acceleration/decelera-
tion time changes, S-curve acceleration, 3-wire control, autotuning, cooling fan ON/OFF control, torque compensation, jump fre-
quencies, upper and lower limits for frequency references, DC braking for starting and stopping, high-slip braking,
PI control (with sleep function), energy-saving control, MEMOBUS communications (RS-485/422, 19.2 kbps maximum),
fault reset, and copy function.
Motor protection 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
*1
120% of rated output current for 1 minute
Overvoltage protection
200 Class Inverter: Stops when main-circuit DC voltage is above 410 V.
400 Class Inverter: Stops when main-circuit DC voltage is above 820 V.
Undervoltage protection
200 Class Inverter: Stops when main-circuit DC voltage is below 190 V.
400 Class Inverter: Stops when main-circuit DC voltage is below 380 V.
Momentary power loss
ridethrough
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 Lights up when the main circuit DC voltage is approx. 50 V or more.
Protective structure
Enclosed wall-mounted type (NEMA 1): 18.5 kW or less (same for 200 V and 400 V class Inverters)
Open chassis type (IP00): 22 kW or more (same for 200 V and 400 V class Inverters)
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
10 to 20 Hz, 9.8 m/s
2
max.; 20 to 50 Hz, 2 m/s
2
max
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Environment
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YASKAWA Varispeed E7 Specifications

General

Brand	YASKAWA
Model	Varispeed E7
Category	DC Drives
Language	English