Power On And Off; Speed Reference - YASKAWA CPCR-MR08C Bulletin

3.1.2 SERVOPACK Types CPCR-MR08C (W) to
-MR99C
The main circuit power (R, S, T) and the control Thus, the sequence for power on and off is
power (r, t) must be input either at the same time, reversed.
or the control power first followed by the main
circuit power. In the case of trouble (servo alarm), only the
main circuit power is to be cut off (Fig. 3.5).
They must be cut off either at the same time
(instantaneous power failure included), or the Troubleshooting is described in Par. 3.3.5 (2)
main circuit first followed by the control power.
POWER
POWER ON
OFF _ 1MC THR
1 MC
POWER SUPPLY - ----(J----o_ 1 THR
200/220 VAC _-+10 %, r- -.--_,i6-18-, i x
50/60 Hz
1
o
! F-
o J
I
SERVO AC " OC SERVOMOTOR
TYPES
CPCR-MR08C ]
TO-MR55C
i
Note: The power on and off sequence is 5 CR .,,_.
the same for CPCR-MR75C and -MR99C. I " "
I
5CR
DC TACHOMETER
GENERATOR
Fig. 3.5 Power Sequence Example for
CPCR-MR08C to -MR55C
3.2 SPEED REFERENCE
3.2.1 Speed Reference Circuit
From the Servopack built-in control power (termi- set value. When external power is used to give
nals @, @, @) or the external power, the speed the speed reference voltage to Servopack, use
reference voltage is given to terminals (_) and the range of 0 to _+12 V.
(_)or to terminals (_ and (_. When the Servo-
The method for giving speed reference voltage
pack built-in control power is used, the motor
is described below.
speed fluctuates in the range of + 2% of the speed
1 k_ (_ W OR MORE) 1.8 k_ (_ W OR MORE)
FOR LOW
(i) For Accurate (Inching) Speed Setting:
ITYPER_30YN]TYPER_30YN _32SPEEb !q
_Lo, E 0U,VALEN, i!" SERV0P C
!_ ,2vT _3 04kn t, '_Spe_ I
1.8 k£ (_ W OR MORE) / 2k£1 ,L_. I _ - (OR9)
r-q / _se.voPac, / _1 2 L 500:1
I TYPE 25HP-10B _3 I|
_[_OR EQUIVALENT_ _ 2 i1
12V __ 2k_l I"-_--O_QI (OR 9)
]-, 1_ 1000:1 _2_" -._ .Type RV30YN:cosmos Electric. Carbon-film variable resistor made by Tokyo
• Low-and high-speed relays: Reed relay (PC series) made by
Nippon Electric or equivalent, or low-level relay (GzA-432) made by
• Type 25HP-10B: Multiple-rotation type, wire wound variable OMRON Corporation or equivalent.
resistor (with dial MD10-30B4) made by Sakae Tsushin Inc.
Note: When a carbon resistor is used, a great residual resistance
remains, and so the speed control range becomes approximately
(a) When Multiple-rotation Type, Wire 5oo:1.
Wound Variable Resistor is used
(b) When Carbon Variable Resistor is used
Fig. 3.6 Method for Giving Speed Reference Voltage
(for Accurate Speed Setting) 25