sh030106u.pdf - 第125页

3. SIG NALS A ND WIRI NG 3 - 48 (f) Ready-off command from c ontroller It is the sam e as (1) (f) in th is sec tion. 3.11 Gro unding WARNING Ground t he servo a mplif ier and serv o motor s ecure ly. To prevent an electr…

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3. SIGNALS AND WIRING
3 - 47
(2) When you do not use the forced stop deceleration function
POINT
To disable the function, set "0 _ _ _" in [Pr. PA04].
(a) Servo-on command (from controller) on/off
It is the same as (1) (a) in this section.
(b) Off/on of the forced stop command (from controller) or EM1 (Forced stop 1)
Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
MBR
(Electromagnetic
brake interlock)
Operation delay time
of the electromagnetic
brake
Approx. 210 ms
Approx. 210 ms
Electromagnetic brake
has released.
(Note)
ON
OFF
Base circuit
ON
OFF
Servo motor speed
Forced stop command
(from controller)
or
EM1 (Forced stop 1)
ON (Disabled)
OFF (Enabled)
0 r/min
Approx. 10 ms
Note. ON: Electromagnetic brake is not activated.
OFF: Electroma
g
netic brake is activated.
(c) Alarm occurrence
The operation status during an alarm is the same as section 3.7.2.
(d) Both main and control circuit power supplies off
It is the same as (1) (d) in this section.
(e) Main circuit power supply off during control circuit power supply on
Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
Operation delay time of
the electromagnetic brake
MBR
(Electromagnetic
brake interlock)
(Note 2)
Base circuit
Alarm
[AL. 10 Undervoltage]
No alarm
Alarm
Servo motor speed
Approx. 10 ms
(Note 1)
ON
OFF
ON
OFF
Main circuit
power supply
ON
OFF
0 r/min
Note 1. Variable accordin
g
to the operation status.
2. ON: Electromagnetic brake is not activated.
OFF: Electroma
g
netic brake is activated.
3. SIGNALS AND WIRING
3 - 48
(f) Ready-off command from controller
It is the same as (1) (f) in this section.
3.11 Grounding
WARNING
Ground the servo amplifier and servo motor securely.
To prevent an electric shock, always connect the protective earth (PE) terminal
(marked
) of the servo amplifier to the protective earth (PE) of the cabinet.
The servo amplifier switches the power transistor on-off to supply power to the servo motor. Depending on
the wiring and ground cable routing, the servo amplifier may be affected by the switching noise (due to di/dt
and dv/dt) of the transistor. To prevent such a fault, refer to the following diagram and always ground.
To conform to the EMC Directive, refer to "EMC Installation Guidelines".
Ensure to connect the wire to the
PE terminal of the servo amplifier.
Do not connect the wire directly to
the grounding of the cabinet.
(Note)
Power
supply
V
U
Cabinet
Servo motor
M
U
V
W
W
Encoder
CN2
Servo amplifier
L11
L1
L2
L3
L21
CN1A
Protective earth (PE)
Outer
box
MC
MCCB
EMC filter
Servo system
controller
Do not ground
L11 and L21.
Note. For the power suppl
y
specifications, refer to section 1.3.
4. STARTUP
4 - 1
4. STARTUP
WARNING
When executing a test run, follow the notice and procedures in this instruction
manual. Otherwise, it may cause a malfunction, damage to the machine, or injury.
Do not operate the switches with wet hands. Otherwise, it may cause an electric
shock.
CAUTION
Before starting operation, check the parameters. Improper settings may cause
some machines to operate unexpectedly.
The servo amplifier heat sink, regenerative resistor, servo motor, etc., may be hot
while the power is on and for some time after power-off. Take safety measures
such as providing covers to avoid accidentally touching them by hands and parts
such as cables.
During operation, never touch the rotor of the servo motor. Otherwise, it may
cause injury.
Before wiring, switch operation, etc., eliminate static electricity. Otherwise, it may
cause a malfunction.
POINT
When you use a linear servo motor, replace the following words in the left to the
words in the right.
Load to motor inertia ratio → Load to motor mass ratio
Torque → Thrust
(Servo motor) speed → (Linear servo motor) speed