
22
Manual for
Synchronous Spindle Motor Drive
EDT. DATE DESIG. DESCRIPTION PAGE /29
A-63639E-103 /03
NO.
TITLE
NEWLY Y.Toyozawa
K.Takahashi
2003.06.13 01
02 2003.10.15 K.Takahashi
dded SSM etc. Y.Toyozawa
03 2004.06.09 K.Takahashi Revised Pole detect, etc. Y.Toyozawa
7.3 Input/ Output signal for Pole detection
The following signals are used for Pole detection.
INPUT (PMC CNC)
15i 16 i 30 i
#7 #6 #5 #4 #3 #2 #1 #0
G227 G070 G070 MRDY SFR SRV
G226 G071 G071 *ESP
G228 G073 G073
EPFSTR
MPOF
SYMBOL MEANINGS & REMARKS
MRDY Machine Ready completed
Set to 1 before input the trigger of pole detection such as SFR/SRV or EPFSTR.
SFR
SRV
These signal serve as both the rotation command and the trigger signal for pole
detection by inputting either SFR or SRV exclusive. Up to the temporary pole position
set, these signal have the meaning not of the direction but of the signal excites the motor.
In this case either SFR or SRV exclusive is to be turn on beforeEPFSTR=1.
As far as these signal are used to excite the motor, the velocity command is not
executed during EPFIX=0 (Lost pole position). But it becomes effective to drive the motor
as soon as EPFIX=1 (Pole position setting).
*ESP Emergency Stop
Set to one before the trigger signal for Pole detection.
EPFSTR
The trigger signal to start the pole detection.
This choice for the pole detection enable an operator to be conscious what he will do,
and to use together with EPFIX (Pole position state).
This signal must be turn off to zero after EPFIX set to one, because this signal make
the velocity command invalid and display Error-30 at SPM module.
Besides, this signal is not effective in case that SFR/SRV is chosen as the trigger signal
for pole detection. In this setting (No.4007#7=0: 16i), don’t input EPFSTR.
MPOF Motor power off signal
Don’t input this signal during the pole detection executes.
OUTPUT (PMC CNC)
15i 16 i 30 i
#7 #6 #5 #4 #3 #2 #1 #0
F230 F048 F048
EPFIX
SYMBOL MEANINGS & REMARKS
EPFIX
Pole position status
0: means the pole position in lost state. The trigger signal starts the pole detection.
1: means on the pole position set by either temporary or fixed state. This signal reset
to zero if it is necessary to clear the pole position because of such an alarm as the
feedback disconnection. You can get an operator to be conscious the behavior of
pole detection if an indicator on machine panel is lit.
If the following alarm is occurred, SPM forgets the pole position and EPFIX is set to “0”.
Alarm number: 01, 24, 26, 31, 37, 65, 73