YASKAWA E7 Drive - Page 170

Specifications C - 4
 Common Specifications
The following specifications apply to both 208 - 240Vac and 480Vac Class Drives.
Table C.4 Common E7 Drive Specifications
Model Number
CIMR-E7U
Specification
Control method
Sine wave PWM
V/f control
Speed range 40:1
Speed control accuracy ±2 to 3% (77°F ± 50°F) (25°C ± 10°C)
Frequency accuracy
(temperature characteristics)
Digital references: ± 0.01% (14°F to 104°F) (-10°C to +40°C)
Analog references: ±0.1% (77°F ± 50°F) (25°C ±10°C)
Frequency setting resolution
Digital references: 0.01 Hz
Analog references: 0.025/50 Hz (10 bit with sign)
Overload capacity and
maximum current
110% of rated output current for 60 seconds
Frequency setting signal 0-10 Vdc, 4-20 mA
Acceleration/Deceleration
time
0.0 to 6000.0 s (2 selectable combinations of independent acceleration and deceleration settings)
Main control functions
Restarting for momentary power loss, bi-directional speed search, overtorque detection, 5 preset speeds,
acceleration/deceleration time changes, S-curve acceleration, 3-wire sequence, auto-tuning, cooling fan ON/OFF
control, torque compensation, jump frequencies, upper and lower limits for frequency references, DC braking for
starting and stopping, high-slip braking, PI control (with sleep function), energy-saving control, Modbus communi-
cations (RS-485/422, 19.2 kbps maximum), fault reset, and copy function
Motor protection Protection by electronic thermal overload relay
Fuse blown protection Stops for fuse blown
Overload protection 110% of rated output current for 60 seconds
Overvoltage protection
208-240Vac: Stops when main-circuit DC voltage is above 410 V
480Vac: Stops when main-circuit DC voltage is above 820 V
Undervoltage protection
208-240Vac: Stops when main-circuit DC voltage is below 190 V
480Vac: Stops when main-circuit DC voltage is below 380 V
Momentary power loss
ridethru
Stops for 15 ms 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. (50% of inverter rated current)
Charge indicator Lit when the main circuit DC voltage is approx. 50 Vdc or more
Enclosure Type
Enclosed wall-mounted type (NEMA 1): CIMR-E7U20P4 thru 2018 and 40P4 thru 4018
Open chassis type (IP00): CIMR-E7U2022 thru 2110 and 4030 thru 4300
Ambient operating
temperature
14°F to 104°F (-10°C to 40°C) NEMA 1 type
14°F to 113°F (–10°C to 45°C) Open chassis type
Ambient operating humidity 95% max. (with no condensation)
Storage temperature 68°F to 140°F (- 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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