sh030106u.pdf - 第104页

3. SIG NALS A ND WIRI NG 3 - 27 3.5.2 Outp ut devic e (1) Output dev ice pin The foll owing sho ws the ou tput dev ice pins and param eters for a ssigning device s. Connector pin No. Param eter Ini tial devic e I/ O divi…

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3. SIGNALS AND WIRING
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3.5 Signal (device) explanations
For the I/O interfaces (symbols in I/O division column in the table), refer to section 3.8.2.
The pin numbers in the connector pin No. column are those in the initial status.
3.5.1 Input device
Device Symbol
Connector
pin No.
Function and application
I/O
division
Forced stop 2 EM2 CN3-20
Turn off EM2 (open between commons) to decelerate the servo motor to a stop
with commands.
Turn EM2 on (short between commons) in the forced stop state to reset that
state.
Set [Pr. PA04] to "2 1 _ _" to disable EM2.
The following shows the setting of [Pr. PA04].
DI-1
[Pr. PA04]
setting
EM2/EM1
Deceleration method
EM2 or EM1 is off Alarm occurred
0 0 _ _ EM1
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
2 0 _ _ EM2
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.
0 1 _ _
Not using
EM2 and
EM1
MBR (Electromagnetic
brake interlock) turns off
without the forced stop
deceleration.
2 1 _ _
Not using
EM2 and
EM1
MBR (Electromagnetic
brake interlock) turns off
after the forced stop
deceleration.
EM2 and EM1 are mutually exclusive.
EM2 has the same function as EM1 in the torque control mode.
Forced stop 1 EM1 (CN3-20) When using EM1, set [Pr. PA04] to "0 0 _ _" to enable EM1.
When EM1 is turned off (open between commons), the base circuit shuts off,
and the dynamic brake operates to decelerate the servo motor to a stop.
The forced stop will be reset when EM1 is turned on (short between commons).
Set [Pr. PA04] to "0 1 _ _" to disable EM1.
DI-1
DI1 CN3-2
Devices can be assigned for these signals with controller setting. For devices
that can be assigned, refer to the controller instruction manual. The following
devices can be assigned for MR-J4 compatible controller (R_MTCPU,
Q17_DSCPU, RD77MS_ and QD77MS_).
DI-1
DI2 CN3-12 DI-1
DI3 CN3-19 DI-1
3. SIGNALS AND WIRING
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3.5.2 Output device
(1) Output device pin
The following shows the output device pins and parameters for assigning devices.
Connector pin No. Parameter Initial device I/O division
CN3-13 [Pr. PD07] MBR
CN3-9 [Pr. PD08] INP DO-1
CN3-15 [Pr. PD09] ALM
(2) Output device explanations
Device Symbol Function and application
Electromagnetic
brake interlock
MBR When using the device, set operation delay time of the electromagnetic brake in [Pr. PC02].
When a servo-off status or alarm occurs, MBR will turn off.
Malfunction ALM When the protective circuit is activated to shut off the base circuit, ALM will turn off.
When an alarm does not occur, ALM will turn on after 2.5 s to 3.5 s after power-on.
In-position INP
When the number of droop pulses is in the in-position range, INP will turn on. The in-position range
can be changed using [Pr. PA10]. When the in-position range is increased, INP may be on during
low-speed rotation.
The device cannot be used in the speed control mode, torque control mode, and for continuous
operation to torque control mode.
Dynamic brake
interlock
DB When using the signal, enable it by the setting of [Pr. PD07] to [Pr. PD09].
DB turns off when the dynamic brake needs to operate. When using the external dynamic brake on
the servo amplifier of 11 kW or more, this device is required. (Refer to section 11.17.)
For the servo amplifier of 7 kW or less, it is not necessary to use this device.
The external dynamic brake cannot be used with 11 kW or more servo amplifier for compliance
with SEMI-F47 standard. Do not assign DB (Dynamic brake interlock) in [Pr. PD07] to [Pr. PD09].
Failure to do so will cause the servo amplifier to become servo-off when an instantaneous power
failure occurs.
Ready RD Enabling servo-on to make the servo amplifier ready to operate will turn on RD.
Speed reached SA
SA will turn off during servo-off. When the servo motor speed reaches the following range, SA will
turn on. Set speed ± ((Set speed × 0.05) + 20) r/min
When the preset speed is 20 r/min or less, SA always turns on.
The device cannot be used in the position control mode and torque control mode.
Limiting speed VLC
When the speed reaches the speed limit value in the torque control mode, VLC will turn on. When
the servo is off, TLC will be turned off.
The device cannot be used in the position control mode and speed control mode.
Zero speed detection ZSP
ZSP turns on when the servo motor speed is zero speed (50 r/min) or less. Zero speed can be
changed with [Pr. PC07].
OFF
ON
Servo motor
speed
20 r/min
(Hysteresis width)
[Pr. PC07]
20 r/min
(Hysteresis width)
OFF level
-70 r/min
ON level
-50 r/min
ON level
50 r/min
OFF level
70 r/min
0 r/min
[Pr. PC07]
ZSP
(Zero speed
detection)
1)
3)
2)
4)
Forward
rotation
direction
Reverse
rotation
direction
ZSP will turn on when the servo motor is decelerated to 50 r/min (at 1)), and will turn off when the
servo motor is accelerated to 70 r/min again (at 2)).
ZSP will turn on when the servo motor is decelerated again to 50 r/min (at 3)), and will turn off
when the servo motor speed has reached -70 r/min (at 4)).
The range from the point when the servo motor speed has reached on level, and ZSP turns on, to
the point when it is accelerated again and has reached off level is called hysteresis width.
Hysteresis width is 20 r/min for this servo amplifier.
When you use a linear servo motor, [r/min] explained above will be [mm/s].
3. SIGNALS AND WIRING
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Device Symbol Function and application
Limiting torque TLC
When the torque reaches the torque limit value during torque generation, TLC will turn on. When
the servo is off, TLC will be turned off.
This device cannot be used in the torque control mode.
Warning WNG
When warning has occurred, WNG turns on. When a warning is not occurring, WNG will turn off in
2.5 s to 3.5 s after power-on.
Battery warning BWNG
BWNG turns on when [AL. 92 Battery cable disconnection warning] or [AL. 9F Battery warning] has
occurred. When the battery warning is not occurring, BWNG will turn off in 2.5 s to 3.5 s after
power-on.
Variable gain
selection
CDPS CDPS will turn on during variable gain.
Absolute position
undetermined
ABSV ABSV turns on when the absolute position is undetermined.
The device cannot be used in the speed control mode and torque control mode.
During tough drive MTTR
When a tough drive is enabled in [Pr. PA20], activating the instantaneous power failure tough drive
will turn on MTTR.
During fully closed
loop control
CLDS CLDS turns on during fully closed loop control.
3.5.3 Output signal
Signal name Symbol
Connector
pin No.
Function and application
Encoder A-phase
pulse (differential line
driver)
LA
LAR
CN3-6
CN3-16
These devices output pulses of encoder output set in [Pr. PA15] and [Pr. PA16] in the
differential line driver type.
In CCW rotation of the servo motor, the encoder B-phase pulse lags the encoder A-
phase pulse by a phase angle of π/2.
The relation between rotation direction and phase difference of the A-phase and B-
phase pulses can be changed with [Pr. PC03].
Output pulse specification, dividing ratio setting, and electronic gear setting can be
selected.
Depending on the servo motor stop position, the encoder output pulse may turn on and
off repeatedly even if the servo motor is stopped.
Encoder B-phase
pulse (differential line
driver)
LB
LBR
CN3-7
CN3-17
Encoder Z-phase
pulse (differential line
driver)
LZ
LZR
CN3-8
CN3-18
The encoder zero-point signal is output in the differential line driver type. One pulse is
output per servo motor revolution. This turns on when the zero-point position is
reached. (negative logic)
The minimum pulse width is about 400 μs. For home position return using this pulse,
set the creep speed to 100 r/min or less.
Analog monitor 1 MO1 CN3-4
This is used to output the data set in [Pr. PC09] to between MO1 and LG in terms of
voltage.
Resolution: 10 bits or equivalent
Analog monitor 2 MO2 CN3-14
This signal output the data set in [Pr. PC10] to between MO2 and LG in terms of
voltage.
Resolution: 10 bits or equivalent
3.5.4 Power supply
Signal name Symbol
Connector
pin No.
Function and application
Digital I/F power
supply input
DICOM CN3-5
CN3-10
Input 24 V DC (24 V DC ± 10% 300 mA) for I/O interface. The power supply capacity
changes depending on the number of I/O interface points to be used.
For sink interface, connect + of 24 V DC external power supply.
For source interface, connect - of 24 V DC external power supply.
Digital I/F common DOCOM CN3-3
Common terminal of input signal such as EM2 of the servo amplifier. This is separated
from LG.
For sink interface, connect - of 24 V DC external power supply.
For source interface, connect + of 24 V DC external power supply.
Monitor common LG CN3-1
CN3-11
Common terminal of MO1 and MO2.
Pins are connected internally.
Shield SD Plate Connect the external conductor of the shielded wire.