DESCRIPTION OF CHECK PINS
Item
Check Signal
Function
pin
1 Control CH7 Servo ON Signal for checking servo ON/OFF.
signal
signal
Servo OFF when low; ON when high.
Power
Pin for checking whether
is being
unit con-
trol
supplied to power unit.
nal
Speed
TG
Pin for checking TG signal.
back
loop
signal
Output is 2V
rpm (ARST, ATT)
CH3 Speed
Indicates error between speed command
loop
error
signal and TG.
CH4
Compensation circuit output
Speed
Check pin for when speed command is
command
issued with
by toggle switch
3 Current CH6 Current Current loop command signals serving
loop
CH32 command
as torque commands.
CH17 Current
Current command (sine wave) of current
command
loop phase U.
Waveform is as below:
(phase
Where Ei
voltage
sine wave of 2 cycles per motor
revolution
Note:
Output is
when Ei or
0
