Servopack - YASKAWA CPCR-MR08C Bulletin

INDICATOR_ r__lL_]ll I _ 3.4 PRECAUTIONS FOR APPLICATION
WINDOW
%-II IL>
3.4.1 Coating (Varnish) Treatment
When used in ambients where oil mist is likely to
Note: If the fuse is blown,
deposit or humidity is high, Servopack internal
the indicatorwindowon the insulating resistance drops due to oil mist or moisture
fuse casing
shows whiteto and malfunction may occur. For use in a severe
indicatea blownfuse.
ambient condition, the type of treatment for severe
(a) Types CPCR-MR01C to -MR07C environment should be applied.
For the severe ambient condition, types having
ELEMENT FUSEHOLDER control board coated with varnish are available.
eLOWN FUSE
D=CAT=ON" 3. 4. 2 Minus Load
b by load;it isimpossible,
The
motor is rotated the
by the use of CPCR-MR[]C, to apply brake
"Whenfuseis blown, t he element (regenerative brake) against this rotation and
indicator c omes out. achieve continuous running,
(b) Types CPCR-MR08C to-MR99C Example: Driving a motor to lower objects (with
Fig. 3.17 Blown Indication of Built-in Fuse
no counterweight)
Since Servopack types CPCR-MR08C to -MR99C
3.3.7 Current Monitor
has the regenerative brake capability of short
time (corresponding to the motor stopping time),
Motor current appears as a voltage signal at terminal for application to a minus load, contact the company.
(_ of Servopack types CPCR-MR08C to -MR99C or For regenerative unit type JUSP-PG used with
protection device type JESP-PT (Table 3.4).. The types CPCR-MR01C to-MR07C, refer to Par. 3.8.2.
signal is used to detect overload of the motor. The
connecting load must have input impedance of
10 kt2 or greater (Normally open). 3.4.3 Type CPCR-MR[-_]CW Application
Types CPCR-MR08CW to -MR55CW are applicable
Table 3.4 Voltage Level of Current
to harmful ambients containing iron powder and
Monitor Terminals
cutting oil, such as in cutting and millingmachines
or car factories. The characteristics are the same
SERVOPACK Type Current Monitor Terminal Voltage
(Protection Device T ype) (With Terminal Q opened) as those of types CPCR-MR08C to -MR55C, but
the construction differs in that cooling air is taken
CPCR-MR01Ct0-MR07C from the outside of the unit and discharged to
+ (JESP-PT) 0.045 V -t- 10 % A
the outside [Fig. 3.18 (a) and (b)].
CPCR-MR08C 0.06V -t- 10% A
CPCR-MR15C 0.05V +_ 10% A PANEL PANEL
/
CPCR-MR22C 0.03V -t- 10% A _
CPCR-MR55C 0.02V -t- 10% A t
I I% COOLING_
AIR
CPCR-MR75C 0.015V -t- 10% A
CPCR-MR99C 0.01V ± 10% A
qp COOLING
AIR
3. 3. 80verspeed Drive (O.S Drive) (a) Cooling System for (b) Cooling System for
Type CPCR-M R[_]C Type CPCR-M R[_]CW
To fully develop the characteristic of Minertia
Motor J series (large torque at low speed), CPCR
-MR _-j CJ and CPCR-MR [-] C-J provides the O.S Fig 3 18 Cooling System
drive function enabling an overspeed drive up
to approxin_ately 1.5 to 2 times the rated speed
within the allowable speed range of the motor. It
is therefore unnecessary to control the current
limit characteristic determined by the motor
(according to the speed, automatic current limit
is applied from the outside).
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