Timing Chart; Timing Chart Of Operations After Turning Power On - Panasonic Minas-LIQI Series Technical Reference

Ac servo amplifier
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8-2 Timing Chart
8-2-1 Timing Chart of Operations After Turning Power On
Control pow er
OFF
(L1C, L2 C)
Internal contr ol
OFF
pow er
Micro comput er
operati on Reset
Alarm outp ut
(ALM )
Main pow er
(L1,L2,L3 )
Servo rea dy
output(S-RDY )
Servo on inp ut
(SRV-ON )
Dynamic bra ke
*4
Power to t he
mot or
Br ake release
ou tput(BRK-OFF)
Position/veloc it
y/torque comma nd
The above chart shows the timing of actions from the time when the control power is turned on until a com-
mand is entered.
Enter the servo-on signal and the position/velocity/torque commands according to the above chart.
*1. When the internal control power has been established, the protective functions get activated approximately
1.5 s after the start of the micro computer initialization. To design your system, keep in mind that all the
input/output signals connected to the driver should be established before the protective functions start get-
ting activated; use special care for signals that can trigger the protective functions such as positive/negative
overtravel limits and external scale input. Also, this time can be extended using Pr6.18 "Power-up wait
time"
*2. After microcomputer initializing,and no errer,the output of ALM is on.
*3. S-RDY output is turned on only when the two conditions are met: initialization of the microcomputer has been
complete, and the main power has been established.
*4. As SRV-OFF,until initialize ending,dynamic brake action is according to Pr5.07" Sequence at main power
OFF",after main power establish,according to Pr5.06"SRV-OFF sequence".
*5. After the output of SRV-READY is affirmed,please start the input of SRV-ON。
*6. The signal of SRV-ON from on to the fact of position instruction,the waiting time please
set about 100ms at least.Because from SRV-ON to the fact of power to motor need to consume some time,It is
possibility the position command cann't be accepted.
Approx 10 0-300 ms
App rox 1.5s *1
Er ror
Ini tialization
check start
Approx 2s * 2
Output Tr OFF
0s upwards
OFF
Output Tr OFF
Input Couple OFF
Operation
No power
Output Tr OFF
(brake applied)
No command
Established
Normal ope ration
Output T r ON
*3
Approx 100ms upwards
Output T r ON
*5
0s upwar ds
In put Couple ON
(Pr5.07)
(Pr5.06)
Motor Business Unit, Appliances Company, Panasonic Corporation
№SR-ZSV00039 - 73 -
ON
ON
Approx 2ms
Releas ed
Approx 60ms
Power to the motor
Approx 4ms
Out put Tr ON
(brak e released)
Approx 100ms
upwards *6
Th ere is comm and

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