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Chapter 14 Common Functions
[2] Restrictions
(1) The following monitor data cannot be used during amplifier-less operation
mode.
Storage item Storage details
Buffer memory address
QD77MS2
QD77MS4
QD77MS16
[Md.102] Deviation counter value Always "0" during amplifier-less operation mode.
852+100n
853+100n
2452+100n
2453+100n
[Md.106]
Servo amplifier
software No.
Always "0" during amplifier-less operation mode.
864+100n
to
869+100n
2464+100n
to
2469+100n
[Md.107]
Parameter error No. Always "0" during amplifier-less operation mode. 870+100n 2470+100n
[Md.108] Servo status
As follows during amplifier-less operation mode.
• Zero point pass (b0) : Always ON
• Zero speed (b3) : Changed depending on the
command speed
• Speed limit (b4) : Always ON when other than "0"
is set to the command torque at
torque control mode. Otherwise,
always OFF.
• PID control (b8) : Always OFF
876+100n 2476+100n
As follows during amplifier-less operation mode.
• READY ON(b0), Servo ON(b1):
Changed depending on the all axis servo ON
signal[Y1] and "[Cd.100] Servo OFF command".
• Control mode (b2, b3) : Indicates control mode.
• Servo alarm(b7) : Always OFF
• In-position(b12) : Always ON
• Torque limit(b13) : Changed depending on
"[Md.104] Motor current
value".
(Refer to "Restrictions (2)
and (3)" for details.)
• Absolute position lost(b14) : Always OFF
• Servo warning(b15) : Always OFF
877+100n 2477+100n
[Md.109]
Regenerative load ratio/
Optional data monitor
output 1
Always "0" during amplifier-less operation mode. 878+100n 2478+100n
[Md.110]
Effective load torque/
Optional data monitor
output 2
Always "0" during amplifier-less operation mode. 879+100n 2479+100n
[Md.111]
Peak torque ratio/
Optional data monitor
output 3
Always "0" during amplifier-less operation mode. 880+100n 2480+100n
[Md.112]
Optional data monitor
output 4
Always "0" during amplifier-less operation mode. 881+100n 2481+100n
n: Axis No.-1