Mitsubishi Electric QD77MS User Manual page 827

Function
External signal selection function
Torque limit function
Storage item
[Md.30] External input signal
[Md.104] Motor current value
(2) The operation of the following function of virtual servo amplifier differs from
the actual servo amplifier.
When "1: External input signal of servo amplifier" is set in "[Pr.80] External input signal
selection", the external signal status immediately after 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 "Restrictions (3)" for details.)
When "2: Buffer memory of QD77MS" is set in "[Pr.80] External input signal
selection", the upper/lower limit signal (FLS, RLS) and the near-point dog signal
(DOG) follow the buffer memory status of the Simple Motion module even in the
virtual servo amplifier.
Turns ON/OFF torque limit ("[Md.108] Servo status" high-order buffer memory
address: b13) depending on "[Md.104] Motor current value". (Refer to "Restrictions
(3)" for details.)
(3) The following monitor data of virtual servo amplifier differ from the actual
servo amplifiers. The writing operation is possible in the virtual servo
amplifier.
Storage details
When "1: External input signal of servo amplifier" is set in
"[Pr.80] External input 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
"0" is set after immediately power supply ON.
The motor current value can be emulated by changing this
monitor data in user side.
Operation
14 - 31
Chapter 14 Common Functions
Buffer memory address
QD77MS2
QD77MS16
QD77MS4
816+100n 2416+100n
856+100n 2456+100n
n: Axis No.-1