MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第59页
2. Wiring and Connection 2 - 31 (2) Operation sequences of CN23 external emergency stop function If only external emergency stop is input when ex ternal emergency stop valid is set in the parameters (the emergency stop i…
2. Wiring and Connection
2 - 30
2-6-4 Wiring of an external emergency stop
(1) External emergency stop setting
Besides the emergency stop input from the NC or PC to spindle drive unit, double-protection when
an emergency stop occurs can be provided by directly inputting an external emergency stop to the
CN23 connector on the power supply unit. Even if the emergency stop is not input from CNC for
some reason, the contactors will be shut off by the external emergency stop input from CN23
connector on the power supply unit.
[1] Connection
NC
External emergency stop inpu t
MDS-C1-SPA
IN1 to IN1 2
CN4
MDS-C1-CV
CN4
1 EMG1
2 NC
3 EMG2
MC1
Emergency
stop
Alarm
Alarm
C o ntact o r s h ut o ff
command
CN23
MC1
L
21
L
11
FCUA-R000
SH21
Emergency
stop
OUT1 to OUT8
OUT1C to OUT6C
[2] Setting
When using the external emergency stop, the rotary switch on the front of the power supply unit
and the parameter (PTYP) of drive unit that controls the power supply must be set.
• Rotary switch setting: 4
• Parameter setting: Add "0040" to the setting of PTYP (SP041).
Parameter settings
No. Abbrev. Parameter name Descriptions
SP041 PTYP Power supply
type
When external emergency stop is validated, 0040 [hex] is added to PTY P for the drive unit
connected to the power supply unit.
CAUTION
The emergency stop signal input to the CNC side cannot be used as a substitute
for the external emergency stop function (CN23).
2. Wiring and Connection
2 - 31
(2) Operation sequences of CN23 external emergency stop function
If only external emergency stop is input when external emergency stop valid is set in the
parameters (the emergency stop is not input in the spindle drive unit), an "In external emergency
stop" (warning EA) will be detected. At this time, the spindle drive unit does not enter an emergency
stop status. (There will be no deceleration control.)
If an emergency stop is not issued for the spindle drive unit within 30 seconds and the setting time
of SP055 after the external emergency stop is input, the power supply unit outputs contactor shutoff
signal (MC1), and then it shuts off the contactors, and a power supply error (alarm 6F) is detected
simultaneously. If the emergency stop is input within 30 seconds and the setting time of SP055, the
warning EA replaces the "In emergency stop" (warning E7). A normal emergency stop status will
result if the contactor shutoff command is further input.
When the setting value of SP192 is set to "2" or "3", a power supply error (alarm 6F) will occur even
if the emergency stop is input within 30 seconds and the setting time of SP055.
Ready ON is possible even if CN23, an external emergency stop has been input when the
emergency stop is canceled, but a power supply error (alarm 6F) will occur after 30 seconds.
OFF
ON
External emergency stop input
(EMGX)
Servo drive unit status display
Contactor control terminal (MC)
ON
OFF
Motor speed
0
OFF
ON
Main emergency stop input
(EMG)
dx E7EA
Deceleration stop
External emergency stop input sequences
Contactor control command
ON
OFF
Cx
→
dx
Setting time of SP055
30 second or less
(a) When the emergency stop is not input, and the contactor shut-off command is not input
(b) When the emergency stop input is not selected for the general-purpose input of spindle drive unit
OFF
ON
External emergency stop input
(EMGX)
Servo drive unit stat us di spla y
Contactor control terminal (MC)
ON
OFF
Motor speed
0
OFF
ON
Main emergency stop input
(EMG)
dx 6F EA
Coast to stop
Contactor control command
ON
OFF
0 30
2. Wiring and Connection
2 - 32
(3) Example of emergency stop circuit
[1] Outline of function
The power supply unit's external emergency stop can be validated by wiring to the CN23
connector, and setting the parameters and rotary switch. If the emergency stop cannot be
processed and the external contractor cannot be shut off (due to a fault) by the spindle drive unit,
the external contactor can be shut off by the power supply unit instead of the spindle drive unit.
At this time, the spindle motor will coast to stop.
EN60204-1 Category 1 can be basically complied with by inputting the external emergency stop
and installing contactor.
CAUTION
1. The power supply unit external emergency stop function is a function that
assists the NC emergency stop.
2. It will take 30 seconds for the external contactor to function after the
emergency stop is input to CN23. (This time is fixed.)
[2] Outline of function
The emergency stop is a signal used
to stop the machine in an emergency.
This is connected to the NC unit. Wire
to the power supply unit when
necessary.
The servo/spindle unit will be
decelerated and controlled by the
software according to the emergency
stop command issued from the NC
unit. (The deceleration control
depends on a parameter setting.)
The diagram on the right shows an
example of the emergency stop circuit
(EN60204-1 Category 0 stop) in which
an off delay timer (TM1) is installed as
a power shutoff method independent from the NC emergency stop input. The required safety
category may be high depending on the machine and the Safety Standards may not be met. Thus,
always pay special attention when selecting the parts and designing the circuit.
[3] Setting the off delay timer (TM1) tim e
Set the TM1 operation time so that it functions after it has been confirmed that all axes have
stopped. If the set time is too short, the spindle motor will coast to a stop.
tm ≥ All axes stop time
Provide a mechanism that shuts off the power even if the NC system fails.
POINT
Stop Categories in EN60204-1
Category 0: The power is instantly shut off using machine parts.
Category 1: The drive section is stopped with the control (hardware/software
or communication network), and then the power is instantly shut
off using machine parts.
(Caution) Refer to the Standards for details.
Refer to Section 9.2.5.4.2 in EN60204-1: Safety of Machinery
Electrical Equipment of Machines – Part 1.
GND
R
R
GND
External
Emergency
Switch
TM1
RA1
MBR*
EMG
CUP
&
ASIC
SV1/2
CN23
Hardware Emergency
Software Emergency
NC Unit
Power Supply
Unit
Servo/Spindle
Drive Unit
CN1A/B
CUP
&
ASIC
CUP
&
ASIC
MC-OF F*
MC1
L1
L2
L3
L21
L11
CN4
CN4
CN20
MBR*
Motor
Brake
AC Reactor
External
Contactor
MC
L21
L11
P
N