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*1
Select the drive capacity accordingly.
*2
Note these points when you use this function:
• When you can decouple the motor and machine for a test run, use Rotational Auto-Tuning. You must make adjustments to the
control in the range where there is no vibration in the machine after Rotational Auto-Tuning.
• For vector control, use a 1:1 drive to motor ratio. You cannot use vector control when more than one motor is connected to one
drive. Select a drive capacity so that the motor rated current is 50% to 100% of the drive rated current. If the carrier frequency is
too high, the drive rated current is derated.
• Motor loss increases during overexcitation braking and high-slip braking. Use a maximum braking frequency of 5% ED and a
maximum braking time of 90 s. Use overexcitation braking to decelerate over a shorter time at a pre-determined speed.
• Acceleration and deceleration have priority over torque limits in OLV control during acceleration and deceleration (soft start
changes). The drive will not operate until the speed is at the minimum frequency or the reverse direction of motor rotation when
the motor speed decreases because of torque limits during constant speed control. Set L7-07 = 1 [Torque Limit during Accel/Decel
= Proportional & Integral control] to enable torque limits during acceleration/deceleration (for winding applications).
2
Mechanical & Electrical Installation
This chapter explains how to properly mount and install the drive, and to wire the control circuit terminals, motor,
and power supply.
◆
General Safety
DANGER
Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized drive. Before
servicing, disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal
capacitor stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage
decreases below 50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make
sure that the drive is safe. Failure to obey will cause death or serious injury.
WARNING
Electrical Shock Hazard. Do not operate equipment when covers are missing. Some figures in this section
include drives without covers or safety shields to more clearly show the inside of the drive. Replace covers and shields before
operation. Use drives only as specified by the instructions. Failure to obey can cause death or serious injury.Electrical Shock
Hazard. Ground the neutral point on the power supply of drive models 2xxxB/C and 4xxxA/B/C to comply with the EMC
Directive before turning on the EMC filter or if there is high resistance grounding. If the EMC filter is switched ON without the
neutral point being grounded or if there is high resistance grounding, it can cause death or serious injury.Electrical Shock
Hazard. Always use correct equipment for Earth Leakage Circuit Breaker (ELCB). The drive can cause a residual current with a
DC component in the protective earthing conductor. According to IEC/EN 60755, always use a type B ELCB where a residual
current operated protective or monitoring device protects the drive from direct or indirect contact. Failure to obey can cause
death or serious injury.Electrical Shock Hazard. Do not work on the drive or around the drive while wearing loose clothing or
jewelry. Tighten loose clothing and remove all metal objects such as watches or rings. Failure to obey can cause death or
serious injury.Electrical Shock Hazard. Do not remove covers or touch circuit boards while the drive is energized. Failure to
obey can cause death or serious injury.Electrical Shock Hazard. Only let authorized persons install, wire, maintain, examine,
replace parts, and repair the drive. Failure to obey can cause death or serious injury.Electrical Shock Hazard. Do not make
changes to the drive body or drive circuitry. Failure to obey can cause death or serious injury and will void warranty. Yaskawa is
not responsible for changes to the product made by the user.Fire Hazard. Tighten all terminal screws to the correct tightening
torque. Connections that are too loose or too tight can cause incorrect operation and damage to the drive. Incorrect connections
can also cause death or serious injury from fire.Fire Hazard. Tighten screws against the bit at an angle in the specified range
shown in this manual. If you tighten the screws at an angle not in the specified range, you can have loose connections that can
cause damage to the terminal block or start a fire.Fire Hazard. Do not put flammable or combustible materials on top of the drive
and do not install the drive near flammable or combustible materials. Attach the drive to metal or other noncombustible material.
Failure to obey can cause death or serious injury.Fire Hazard. Do not use the main circuit power supply (Overcurrent Category
III) at incorrect voltages. Make sure that the drive rated voltage aligns with the power supply voltage before energizing the drive.
Failure to obey can cause death or serious injury.Fire Hazard. When installing dynamic braking options, wire the components as
specified by the wiring diagrams. Failure to obey can result in fire, death or serious injury. Incorrect wiring can cause damage to
braking components.Fire Hazard. When installing the drive into a closed cabin or cabinet, use a cooling fan or cooler to
decrease the temperature around the drive. Make sure that the intake air temperature to the drive is 50 °C (122 °F) or less for
open chassis type drives, (IP20) and 40 °C (104 °F) or less for enclosed wall-mounted type (UL Type1) drives. Failure to obey
can cause the drive to overheat and cause fire, death or serious injury.Crush Hazard. Only approved personnel can operate a
crane or hoist to move the drive. Failure to obey can cause death or serious injury from falling equipment.Crush Hazard. Use
screws to correctly attach the drive front cover, terminal blocks, and other drive components before hanging the drive vertically.
Failure to obey can cause serious injury or death from falling equipment.Crush Hazard. Prevent more than 1.96 m/s
vibration and impact to a hanging drive. Failure to obey can cause death or serious injury from falling equipment.Crush Hazard.
Do not try to flip over a hanging drive or leave a hanging drive unattended. Failure to obey can cause death or serious injury
from falling equipment.Crush Hazard. Use a lifting mechanism made to move large drives when necessary. Failure to obey can
cause death or serious injury from falling equipment.
CAUTION
Crush Hazard. Do not hold the drive by the front cover or terminal cover. Tighten the screws correctly before
moving the drive. Failure to obey can cause minor to moderate injury.
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
2 Mechanical & Electrical Installation
2
(0.2 G)
23
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