YASKAWA Varispeed G7 Series User Manual

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3. Do not use Slip compensation gain (C3-01) during V/f control (A1-02 = 0). (It is not used with the factory setting.)
4. Use the ASR constants (C5-01 to C5-05) in their factory settings when using V/f control with PG (A1-02 = 1). Vibration may occur if these constants
are changed greatly from their factory settings.
5. The torque and speed response of high-resistance (high-slip) motors are insufficient. Use appropriate adjustments to improve them. On the contrary,
low-resistance (low-slip) motors are easily subject to hunting and vibration. Here too, use appropriate adjustments to improve them.
6. The current during startup may increase when C4-02 (Torque compensation primary delay time constant) is increased. Check the current during
startup while adjusting this constant.
 Reducing Shock during Elevating Machine Start, Stop, Acceleration, and
Deceleration
When the riding comfort during start, stop, acceleration, and deceleration is of high importance, as it is for ele-
vators in which people ride, adjust the following constants.
S-curve Characteristics, Acceleration/Deceleration Times
Dwell Function at Start
IMPORTANT
1. The factory setting for C2-04 (S-curve characteristic time at deceleration end) is 0.00 second, while the fac-
tory setting for all other S-curve characteristic times is 0.20 second. Make appropriate settings for the
accel/decel times and S-curve characteristic times at each point. (S-curve characteristic time = Approxi-
mately 0.2 to 1.0 second)
2. The accel/decel rate can be automatically switched during acceleration and deceleration by using C1-11
(Accel/decel time switching frequency). (Factory setting: Disabled)
Output frequency ≥ set frequency: C1-01, C1-02 accel/decel times
Output frequency < set frequency: C1-07, C1-08 accel/decel times
3. If the output frequency during the S-curve characteristic time for deceleration falls below the value set for
E1-09 (Min. output frequency), the S-curve characteristic will be cancelled, and the DC injection braking
(Zero-speed control) will be applied.
4. Do not use the S-curve characteristic for applications where a short run time is desired, such as in cranes
and hoists. (S-curve characteristic time = Approximately 0.0 to 0.2 second)
C2-03
C2-02
(High speed)
Output frequency
C2-03
C2-04
C2-04
C2-01
Acceleration time
Deceleration time
(Low speed)
DC injection braking when stopping
(Zero-speed control for flux vector control)
b6-02
(Dwell time at start)
0.1 to 0.3 sec
(High speed)
ON
OFF
CLOSE
OPEN
t
Output frequency
b6-01 (Dwell frequency at start) 0.1 to 3.0 Hz
Frequency detection
2 or During run 2
Holding brake
operation
TOE-S616-60.1.book 178 ページ ２０１７年８月４日 金曜日 午後３時４１分

YASKAWA Varispeed G7 Series Specifications

General

Brand	YASKAWA
Model	Varispeed G7 Series
Category	Inverter
Language	English