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9 COMMON FUNCTIONS
9.7 Virtual Servo Amplifier Function
Restrictions
• The following monitor data of virtual servo amplifier differ from the actual servo amplifier.
n: Axis No. - 1
• The operation for external signal selection function of virtual servo amplifier differs from the actual servo amplifier.
• The following monitor data of virtual servo amplifier differ from the actual servo amplifiers. The writing operation is possible
in the virtual servo amplifier.
n: Axis No. - 1
Storage item Storage details Buffer memory address
[Md.102] Deviation counter value Always "0". 2452+100n
2453+100n
[Md.105] Connected device As the following connected devices artificially.
• When "1: SSCNET/H" is set in "[Pr.97] SSCNET setting"
00001000H: MR-J4-_B
• When "0: SSCNET" is set in "[Pr.97] SSCNET setting"
00000100H: MR-J3-_B
58660
58661
[Md.106] Servo amplifier software No. Always "0". 2464+100n
to
2469+100n
[Md.107] Parameter error No. Always "0". 2470+100n
[Md.108] Servo status1 • 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 the 2nd and 3rd bullets of restrictions for
details.)
• Absolute position lost (b14): Always OFF
• Servo warning (b15): Always OFF
2477+100n
[Md.109] Regenerative load ratio/Optional data
monitor output 1
Always "0". 2478+100n
[Md.110] Effective load torque/Optional data
monitor output 2
Always "0". 2479+100n
[Md.111] Peak torque ratio/Optional data monitor
output 3
Always "0". 2480+100n
[Md.112] Optional data monitor output 4 Always "0". 2481+100n
[Md.119] Servo status2 • Zero point pass (b0): Always ON
• Zero speed (b3): Changed depending on the command speed
• Speed limit (b4): Always ON when the value other than "0" is set
to the command torque at torque control mode. Otherwise,
always OFF.
• PID control (b8): Always OFF
2476+100n
Function Operation
External signal selection function When "1: Servo amplifier" is set in "[Pr.116] FLS signal selection", "[Pr.117] RLS signal selection", and "[Pr.118] DOG
signal selection", the external signal status immediately after the power supply ON is shown below.
• Upper/lower limit signal (FLS, RLS): ON
• Near-point dog signal (DOG): OFF
Change the signal status in "[Md.30] External input signal". (Refer to the 3rd bullet of restrictions for details.)
Torque limit function Turns ON/OFF torque limit ("[Md.108] Servo status1": b13) depending on "[Md.104] Motor current value". (Refer to the
3rd bullet of restrictions for details.)
Storage item Storage details Buffer memory address
[Md.30] External input signal When "1: Servo amplifier" is set in "[Pr.116] FLS signal selection", "[Pr.117] RLS signal
selection", and "[Pr.118] DOG signal selection", the external input signal status can be
operated by turning ON/OFF the following signals.
• b0: Lower limit signal
• b1: Upper limit signal
• b6: Near-point dog signal
2416+100n
[Md.104] Motor current value "0" is set after immediately power supply ON.
The motor current value can be emulated by changing this monitor data in user side.
2456+100n
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