Installation manual
CNC 8055
CNC 8055i
CONCEPTS
7.
SOFT: V02.2X
·349·
Main and second spindle
7.9.2 Spindle speed (S) control
BCD output
When using BCD (2 or 8 digits) coded command output, the spindle will operate in open loop and
it will be controlled by means of functions M3, M4 and M5.
To do that, set spindle parameter SPDLTYPE (P0) with the right value.
SPDLTYPE = 1, 2-digit BCD coded spindle command output S.
SPDLTYPE = 2, 8-digit BCD coded spindle command output S.
Whenever a new spindle speed is selected, the CNC will transfer the programmed S value into
register "SBCD" (R557) and it will activate general logic output "SSTROBE" (M5533) to "tell" the
PLC to go ahead with its execution.
This transmission is carried out at the beginning of the block execution and the CNC will wait for
the "AUXEND" general input to be activated and then consider its execution completed.
If it uses 2-bit BCD code, the CNC will indicate the S value to the PLC by means of this register and
according to the following conversion table:
If a value over 9999 is programmed the CNC will tell the PLC the spindle speed corresponding to
value 9999.
S
Programmed
S
BCD
000
120
226
329
432
534
635
736
838
939
10-11 40
12 41
13 42
14-15 43
16-17 44
18-19 45
20-22 46
23-24 47
25-27 48
28-31 49
32-35 50
36-39 51
40-44 52
45-49 53
S
Programmed
S
BCD
50-55 54
56-62 55
63-70 56
71-79 57
80-89 58
90-99 59
100-111 60
112-124 61
125-139 62
140-159 63
160-179 64
180-199 65
200-223 66
224-249 67
250-279 68
280-314 69
315-354 70
355-399 71
400-449 72
450-499 73
500-559 74
560-629 75
630-709 76
710-799 77
S
Programmed
S
BCD
800-899 78
900-999 79
1000-1119 80
1120-1249 81
1250-1399 82
1400-1599 83
1600-1799 84
1800-1999 85
2000-2239 86
2240-2499 87
2500-2799 88
2800-3149 89
3150-3549 90
3550-3999 91
4000-4499 92
4500-4999 93
5000-5599 94
5600-6299 95
6300-7099 96
7100-7999 97
8000-8999 98
9000-9999 99
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