YASKAWA CDBR Series Manuale utente
制動ユニット CDBR-
制動抵抗器ユニット LKEB-
制動ユニット，制動抵抗器ユニット
安川インバータオプション
取扱説明書
BRAKING UNIT CDBR-
BRAKING RESISTOR UNIT LKEB-
Braking unit,
Braking resistor unit
YASKAWA AC Drive Option
Installation Manual
To properly use the product, read this manual thoroughly and retain
for easy reference, inspection, and maintenance. Ensure the end user
receives this manual.
MANUAL NO. TOBP C720600 00F
製品を安全にお使い頂くために，本書を必ずお読みください。
また，本書をお手元に保管していただくとともに，最終的に本製品をご使用になる
ユーザー様のお手元に確実に届けられるよう，お取り計らい願います。
3
PREFACE
Braking resistor unit and braking unit are used to con-sume regenerative
energy from motor in the braking resistor unit at deceleration and to
improve the transis-tor inverter braking ability.
Before using the braking resistor unit and braking unit, a thorough under-
standing of this manual is recom-mended. This instruction manual will be
of great help for daily maintenance, inspection and troubleshoot-ing.
Inverters to which the braking resistor unit and braking unit can be con-
nected are of the following series:
• YASKAWA AC Drive 1000 Series
• Varispeed Series
Wiring sequence should shut off power to the drive when a braking
resistor Overload Relay Trip Contact (Thermal Protector Contact)
output is triggered.
NOTENOTE
4
General Precautions
SSome drawings in this manual are shown with the protective cover or shields
removed, in order to describe with more clarity. Make sure all covers and
shields are replaced before operating this product.
SSince the drawings in this manual are represented examples, some are subject
to differ from delivered products.
SThis manual may be modified when necessary because of improvement of the
product, modification or changes in specifications. Such modifications are
denoted by a revised manual No.
STo order a copy of this manual, if your copy has been damaged or lost, contact
your YASKAWA representative.
SYASKAWA is not responsible for any modification of the product made by the
user since that will void your guarantee.
5
NOTES FOR SAFE OPERATION
Read this instruction manual thoroughly before installation, operation,
maintenance or inspection of the braking unit and the braking resistor unit. In this
manual, NOTES FOR SAFE OPERATION are classified as “WARNING” or
“CAUTION.”
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury to personnel.
Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury to personnel and damage to equipment.
It may also be used to alert against unsafe practices.
Even items described in CAUTION may result in a vital acci-
dent in some situations. In either case, follow these important notes.
: These are steps to be taken to insure proper operation.
WARNING
CAUTION
CAUTION
NOTENOTE
7
WIRING
(Ref. page)
• Only commence wiring after verifying that the power sup-
ply is turned OFF.
Failure to observe this warning can result in an electrical shock
or a fire.
27
• High voltage exists at all terminals of braking unit and
braking resistor unit.
Failure to observe this warning can result in an electrical shock.
27
• Wiring should be performed only by qualified personnel.
Failure to observe this warning can result in an electrical shock
or a fire.
27
• Wiring sequence should shut off power to the drive when
a braking resistor Overload Relay Trip Contact (Thermal
Protector Contact) output is triggered.
Failure to observe this warning can result in a fire.
27
• When wiring the emergency stop circuit, check the wiring
thoroughly before operation.
Failure to observe this warning can result in personal injury.
27
• Make sure to ground the ground terminal.
(Ground resistance
200V class: 100Ω. or less, 400V class: 10Ω. or less)
Failure to observe this warning can result in an electrical shock.
27
• Short Circuit Current Rating (SCCR)
Install adequate branch short circuit protection according to applicable
codes. Failure to comply could result in damage to the drive. The device is
suitable for circuits capable of delivering 31,000 RMS symmet-rical
Amperes, 240 Vac maximum (200V Class), 480 Vac maximum (400V Class)
and 575Vac (600V Class) or the SCCR rating of the drive it is connected to,
which ever is greater.
WARNING
8
CAUTION
(Ref. page)
SVerify that the rated voltage of the braking unit and the braking
resistor unit coincides with the AC power supply voltage.
Failure to observe this caution can result in personal injury or a fire.
27
SDo not perform a withstand voltage test of the braking unit and
braking resistor unit.
It may cause semi−conductor elements to be damaged.
27
SConnect braking resistors, braking resistor units, and braking
units as shown in the I/O wiring examples. Use properly rated
wire in accordance with table 2 on page 31.
Otherwise, a fire can occur.
27
STighten terminal screws to the specified tightening torque.
Failure to observe this caution can result in a fire.
27
SBe sure to connect braking resistors or braking resistor units
to the braking units.
If neither braking resistor nor braking resistor unit is connected to a
braking unit, the fault contact may instantaneously turn ON when
the power is turned ON, resulting in malfunction of the inverter.
27
9
OPERATION
WARNING
(Ref. page)
SOnly turn ON the input power supply after replacing the front
cover. Do not remove the cover while current is flowing.
Failure to observe this warning can result in an electrical shock.
41
CAUTION
(Ref. page)
SNever touch the heatsink or discharging resistor since the
temperature is very high.
Failure to observe this caution can result in harmful burns to the
body.
41
SDo not check signals during operation.
The machine or the inverter may be damaged.
41
SAll the constants ofthe the braking unit andthe braking resistor
unit have been preset at the factory. Do not change the
settings unnecessarily.
41
11
CAUTION
(Ref. page)
SThe control PC board employs CMOS ICs. Do not touch the
CMOS elements.
They are easily damaged by static electricity.
46
SDo not connect or disconnect wires or connectors while power
is applied to the circuit.
Failure to observe this caution can result in personal injury.
46
OTHERS
WARNING
SNever modify the product.
Failure to observe this warning can result in an electrical shock or
personal injury and will invalidate the guarantee.
Questo manuale è adatto per i seguenti modelli
37
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