YASKAWA Varispeed L7, Instruction Manual, Page: 229 / 243

8
-4
‹
Common Specifications
The following specifications apply to both 200 V and 400 V class Inverters.
Table 8.3 Common Specifications
Model Number
CIMR-L7C †
Specification
Control method
Sine wave PWM
Closed Loop Vector control, Open Loop Vector control, V/f control, V/f with PG control
Torque characteristics
Normal Duty : 8 kHz carrier frequency, 150% overload for 30 sec,
higher carrier frequency possible with current derating.
Speed control range
1:40 (V/f control)
1:100 (Open Loop Vector control)
1:1000 (Closed Loop Vector control)
Speed control accuracy
± 3% (V/f control)
± 0.03% (V/f control with PG)
± 0.2% (Open Loop Vector control)
± 0.02% (Closed Loop Vector control)
(25
°
C ± 10
°
C)
Speed control response
5 Hz (control without PG)
30 Hz (contorl with PG)
Torque limits Provided (4 quadrant steps can be changed by constant settings.) (Vector control)
Torque accuracy ± 5%
Frequency range 0.01 to 120 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
Overload capacity and
maximum current
Normal Duty : 150% of rated output current for 30 sec
Frequency setting signal 0 to +10V
Acceleration/Decelera-
tion time
0.01 to 600.00 s (4 selectable combinations of independent acceleration and deceleration time settings)
Braking torque
Approximately 20% (Approximately 125% with Braking Resistor option,
braking transistor built into Inverters of 18.5 kW or less)
Main control functions
Overtorque/undertorque detection, torque limits, 8-speed control (maximum), 4 acceleration and deceleration times, S-curve
acceleration/deceleration, auto-tuning (rotational or stationary), dwell function, cooling fan ON/OFF control, slip compensation,
torque compensation, auto-restart after fault, DC braking for starting and stopping,A fault reset and parameter copy function.
Special lift function and sequence, Brake sequence , shrot floor, hardware baseblock
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 150% of rated output current for 30 sec
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 and running independently.
Grounding protection Protection by electronic circuits.
Charge indicator Glows when the main circuit DC voltage is approx. 10 VDC or more.
Protective structure
Enclosed wall-mounted type (IP20) : All models
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 and IP20 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
C
on
tro
l
ch
ar
ac
te
ri
st
ics
Pr
ot
ect
ive
f
un
ct
ion
s
Envi
ronm
en
t
http://nicontrols.com