
B–62073E–1/04 2. INTERFACE BETWEEN CNC AND PMC–NA OR NB
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(c) Serial interface spindle motor alarm signals (first signal) (SSPAA0 to SSPAA7)
Serial interface spindle motor alarm signal (second spindle) (SSPAB0 to SSPAB7)
[Classification]
Output signals
[Function] Indicate the type of alarm in the serial interface spindle amplifier.
Serial interface spindle alarm code signals SSPAA0 to SSPAA7 and their meanings are listed
below:
The torque and the signal correspond to each other as shown below:
NOTE The conventional spindle alarm code signals SPAL1 to SPAL8 cannot be used.
SSPA
A7
SSPA
A6
SSPA
A5
SSPA
A4
SSPA
A3
SSPA
A2
SSPA
A1
SSPA
A0
Meaning
1 0 0 0 0 0 0 0 1 Motor overheat
2 0 0 0 0 0 0 1 0 Velocity error excess
7 0 0 0 0 0 1 1 1 Overspeed
9 0 0 0 0 1 0 0 1 Overload of main circuit
10 0 0 0 0 1 0 1 0
Low input power supply
voltage
11 0 0 0 0 1 0 1 1 Overvoltage of DC link
12 0 0 0 0 1 1 0 0
Excessive current of DC
link
13 0 0 0 0 1 1 0 1
CPU internal data memory
error
18 0 0 0 1 0 0 1 0
Programo ROM sum
check error
19 0 0 0 1 0 0 1 1
Excessive offset of
U–phase current detector
20 0 0 0 1 0 1 0 0
Excessive offset of
V–phase current detector
24 0 0 0 1 1 0 0 0 Serial transfer data error
25 0 0 0 1 1 0 0 1 Serial data tranfer halt
26 0 0 0 1 1 0 1 0
Cs axis control speed
detect signal
disconnection
27 0 0 0 1 1 0 1 1
Position coder signal
disconnection
28 0 0 0 1 1 1 0 0
Cs axis control position
detect signal
disconnection
29 0 0 0 1 1 1 0 1 Short time overload
30 0 0 0 1 1 1 1 0
Excessive current of input
circuit
31 0 0 0 1 1 1 1 1
Motor restricted alarm,
Speed detector
disconnection
32 0 0 1 0 0 0 0 0
Serial data tranfer LSI
internal RAM error
33 0 0 1 0 0 0 0 1
Insufficient charge of DC
link
34 0 0 1 0 0 0 1 0
Parameter setting
exceeding allowable value
35 0 0 1 0 0 0 1 1
Excessive gear ratio set
data
36 0 0 1 0 0 1 0 0 Error counter overflow
(0: Signal LOW, 1: Signal HIGH)