Working documentation
This page is generated from the project's working notes. It records a real retrofit in progress, corrections included. Anything marked 🔴 or ⚠️ is unresolved or carries a caveat - read those before acting.
Connector schedules - the SGM section¶
2 September 2026. The wiring diagram has a third section, SGM, of 12 pages, separate from the 40 Q.E. schematic sheets and the 13-page device list. It is a pin-by-pin connector schedule: for every connector, every pin, what it comes from and what it goes to, with the wire number, colour and cross-section.
Pages read: 1-5 of 12.
Format¶
| Column | Meaning |
|---|---|
da → =Inst.+Loc.-NI:pin |
Source: installation, location, device, terminal |
Cross-reference |
Q.E. sheet.column where it is drawn |
Nr Filo |
<wire number>/<colour>/<mm2> |
PIN |
Pin on this connector |
a → =Inst.+Loc.-NI:pin |
Destination |
Conductor colour codes: BL blu, RD rosso, BK nero, G/V giallo/verde, WH white, BN brown. Most I/O wiring is 1 mm2 blue.
SCORTA = spare.
✅ It verifies the module terminal formulas¶
| Schedule entry | Derived rule | Result |
|---|---|---|
-IF1:2 → E101 |
IF.1 = IF1 terminal 2 |
✓ |
-IF1:3 → E102 |
IF.2 = terminal 3 |
✓ |
-IF1:7 → E106 |
IF.6 = terminal 7 |
✓ |
-IF2:2 → E109 |
IF.9 = IF2 terminal 2 |
✓ |
-IF3:5 → E120 |
IF.20 = IF3 terminal 5 |
✓ |
-IF3:7 → E122 |
IF.22 = terminal 7 |
✓ |
-IF5:2 → E133 |
IF.33 = IF5 terminal 2 |
✓ |
-IF6:6 → E145 |
IF.45 = IF6 terminal 6 |
✓ |
-UF1:2 → A201 |
OF.1 = UF1 channel 1 |
✓ |
-UF1:5 → A202 |
OF.2 = channel 2 |
✓ |
-UF1:23 → A208 |
OF.8 = channel 8 |
✓ |
-UF4:14 → A229 |
OF.29 = UF4 channel 5 |
✓ |
-UF5:17 → A238 |
OF.38 = UF5 channel 6 |
✓ |
Refinement: the output wire lands on the middle terminal of each group of three - 2, 5, 8, 11, 14, 17, 20, 23.
The final formulas¶
For input IF.n:
- Module IF[floor((n-1)/8)+1], terminal ((n-1) mod 8) + 2, wire E1nn
For output OF.n, with k = ((n-1) mod 8) + 1:
- Module UF[floor((n-1)/8)+1], terminal 3k-1 (the group is 3k-2, 3k-1, 3k), wire A2nn
🔴 =Q.E.-S (SGM page 5) - the spindle connector¶
| Pin | Conductor | Cross-ref | To |
|---|---|---|---|
| 8 | WH | 5.0 | -R6:1 |
| 15 | BN | 5.0 | -R6:4 |
Cable: SCH 2x0.50 - screened pair. Only pins 8 and 15 of the 15-way are used.
The CNC's analog output feeds -R6 terminals 1 and 4 - it goes into the potentiometer network rather than alongside it. So the CNC is the spindle speed source and R6 is an override in its path, analogous to FR1 on the feed.
✅ LinuxCNC's S word will control spindle speed. Whether R6 scales or limits it still wants a zoomed read of the -R6 block on sheet 5, but the direction of control is settled.
=Q.E.-A (SGM page 1) - Harting 32-pole, to =BM+X3¶
Gland PG36, PVC36 sleeve, L = 3 m. Wires: 2 x 2.5 G/V, 29 x 1 BLU, 3 x 1 ROSSO, all 4 m, to X3.
| Pin | From | Wire | To |
|---|---|---|---|
| 1 | -D:17 |
12/BL/1 |
X3:12 |
| 2 | -X1:14 |
14/BL/1 |
X3:14 |
| 3 | -SB6:1 |
801/BL/1 |
X3:801 |
| 4-9 | -IF1:2 to -IF1:7 |
E101-E106 |
X3:E101-E106 |
| 10 | -IF2:2 |
E109/BL/1 |
X3:E109 |
| 11-12 | -IF5:2, -IF5:3 |
E133, E134 |
X3:E133, E134 |
| 13-15 | SCORTA |
spare | |
| 16 | -C:6 |
28/RD/1 |
X3:28 |
| 17-18 | -X1:7 |
7/BL/1 |
X3:7 |
| 19 | -M5 |
3/RD/1 |
X3:3 |
| 20 | -UF1:2 |
A201/RD/1 |
X3:A201 |
| 21-27 | -UF1:5 to -UF1:23 |
A202-A208 |
X3:A202-A208 |
| 28-29 | -UF4:14, -UF4:17 |
A229, A230 |
X3:A229, A230 |
| 30 | -UF5:14 |
A237/BL/1 |
X3:A237 |
=Q.E.-B (SGM page 2) - Harting 16-pole, to =BM+X43¶
Gland PG21, PVC20 sleeve, L = 5 m.
| Pin | From | Wire | To |
|---|---|---|---|
| 1 | -D:18 |
14/BL/1 |
X43:14 |
| 2 | -SB15:4 |
14A/BL/1 |
X43:14A |
| 3 | -UX:42 |
73/RD/1 |
X43:73 - X drive P-OT |
| 4 | -UX:43 |
74/RD/1 |
X43:74 - X drive N-OT |
| 5 | -X:6 |
137/BL/1 |
X43:137 - X home switch BOX |
| 6 | -IF3:7 |
E122/BL/1 |
X43:E122 |
| 7 | -IF6:6 |
E145/BL/1 |
X43:E145 |
| 8 | -KA560:A1 |
560/BL/1 |
X43:560 |
| 9 | -A:19 |
3/RD/1 |
X43:3 |
| 10 | -D:2 |
7/BL/1 |
X43:7 |
| 11 | -X1:12 |
12/BL/1 |
X43:12 |
| 12 | -UF5:17 |
A238/RD/1 |
X43:A238 |
| 13-14 | E143, E144 |
X43:E143, E144 |
|
| 15-16 | -UF5:8, -UF5:11 |
A235, A236 |
X43:A235, A236 |
=Q.E.-C (SGM page 3) - Harting 32-pole, to =BM+X4 and =BM+X5¶
Gland PG36, PVC36 sleeve, L = 5 m. Two cables: pins 1-20 and 29-32.
| Pin | From | Wire | To |
|---|---|---|---|
| 1 | -SB15:4 |
14A/BL/1 |
X4:14A |
| 2-3 | -UY:42, -UY:43 |
87/RD/1, 88/RD/1 |
Y drive overtravel |
| 4-5 | -UZ:42, -UZ:43 |
101/BL/1, 102/BL/1 |
Z drive overtravel |
| 6 | -A:16 |
28/RD/1 |
X4:28 |
| 7 | -KA2:56 |
126/RD/1 |
X4:126 |
| 8 | -KA2:68 |
700/BL/1 |
X4:700 |
| 9-11 | -IF3:5, -IF3:8, -IF3:9 |
E120, E123, E124 |
|
| 12-16 | -UF3:8, :11, :20, :23, -UF5:23 |
A219, A220, A223, A224, A240 |
|
| 17-18 | -B:1, -B:10 |
14/BL/1, 7/BL/1 |
X4:14, X4:7 |
| 19-20 | -Y:6, -Z:6 |
138/BL/1, 139/BL/1 |
Y and Z home switches |
| 21-28 | SCORTA |
spare (X4 and X5) | |
| 29-30 | -X1:16, -X1:15 |
16/RD/1, 15/RD/1 |
X5:16, X5:15 |
| 31 | -U1:SC |
18/BL/1 |
X5:18 |
| 32 | -QFRI:13 |
57/BL/1 |
X5:57 |
=Q.E.-D (SGM page 4) - Harting 32-pole, to =BM+X5¶
Gland PG36, PVC36 sleeve, L = 5 m.
| Pin | From | Wire | To |
|---|---|---|---|
| 1-2 | -A:18 |
7/BL/1 |
X5:7 |
| 3-9 | -UF2:5 to -UF2:23 |
A210-A216 |
drill valves Y101-Y106, Y131 |
| 10-11 | -UF3:2, -UF3:5 |
A217, A218 |
Y132, Y133 |
| 12-15 | -UF4:2, :5, :8, :11 |
A225-A228 |
Y107-Y110 |
| 16 | -UF5:23 |
A240/BL/1 |
X5:A240 |
| 17-18 | -B:11, -A:2 |
12/BL/1, 14/BL/1 |
X5:12, X5:14 |
| 19-26 | -IF2:3, :4, -IF3:2, :3, :6, -IF4:3, :4, :5 |
E110, E111, E117, E118, E121, E126, E127, E128 |
|
| 27-29 | -KM101:2/4/6 |
U1, V1, W1 /BK/1.5 |
Drill motor phases |
| 30 | SCORTA |
spare |
Spare conductors between cabinet and machine¶
| Connector | Spare pins | Count |
|---|---|---|
=Q.E.-A |
13, 14, 15 | 3 |
=Q.E.-C |
21-28 | 8 |
=Q.E.-D |
30 | 1 |
| Total | 12 |
Twelve unused conductors already run and terminated between the cabinet and the machine, on top of the seven spare inputs and six spare outputs at the modules.
Still to read¶
SGM pages 6-12. Expect =Q.E.-X, =Q.E.-Y and =Q.E.-Z (which will close the encoder colour question), the pendant connector, and very likely COLLEGAMENTI SERIALI, which is absent from the Q.E. section.
Related¶
io-map.md- the wiring plan these schedules verifymachine-layout.md- the=BM+Xnjunction boxes these cables run tospindle-vfd.md- the-R6network
SGM pages 6-10¶
🔴 =Q.E.-X, =Q.E.-Y, =Q.E.-Z - the axis connectors, definitive¶
SGM pages 6, 7 and 8. Identical structure on all three axes.
| Pin | Conductor | Wire X | Wire Y | Wire Z | Drive CN1 | Signal |
|---|---|---|---|---|---|---|
| 3 | YE | 64 | 78 | 92 | 35 | PBO (B) |
| 4 | BL | 63 | 77 | 91 | 33 | PAO (A) |
| 5 | GR | 65 | 79 | 93 | 19 | PCO (O, index) |
| 6 | - | 137 | 138 | 139 | - | home switch, via -B:5 (X), -C:19 (Y), -C:20 (Z) |
| 7 | - | 014 |
014 |
014 |
24V |
drive 24 V input |
| 8 | BN | 69 | 83 | 97 | 5 | V-REF speed reference |
| 9 | RD-BN | 62 | 76 | 90 | 1 | SG |
| 10 | PK | 67 | 81 | 95 | 36 | /PBO (B-bar) |
| 11 | GN | 66 | 80 | 94 | 34 | /PAO (A-bar) |
| 12 | WH | 68 | 82 | 96 | 20 | /PCO (O-bar) |
| 13 | - | 71 | 85 | 99 (0.5 mm2) | 40 | /S-ON servo on |
| 15 | WH | 70 | 84 | 98 | 6 | Reference 0 V |
Pins 1, 2 and 14 unused.
Cables per axis: SCH 8x0.25 for the encoder (seven conductors used, one spare) and SCH 2x0.50 for the reference pair.
✅ This closes the last open question in the wiring plan¶
The colour-to-pin reading taken from sheet 7 was correct on all seven encoder conductors. The only refinement is that the SG conductor is red-brown, not plain brown.
Three corrections it produces¶
- The encoder cable is
8x0.25mm2, not the8X0.22printed on sheet 7. Prefer the schedule. - Wire
014is the +24 V, not the 0 V - pin 7 goes to-UX:24V. This settles the reading flagged as counter-intuitive inpower-distribution.md. - The reference pair colours are BN on pin 8, WH on pin 15. Note that
CONN.Suses the same two colours on the same two pins but the other way round (WH on 8, BN on 15).
🔴 The HSD spindle connector - SGM page 10¶
CONNETTORE ELETTROMANDRINO HSD (M200), reference -AM-PM. Two circular connectors on one backshell.
PM - power, 9 pin¶
| Wire | Pin | Function |
|---|---|---|
| 57 | 1 | SONDA TERMICA (NC) - thermal probe |
| - | 2 | TERRA MOTORE - motor earth |
| 15 | 3 | 220 Vac 50/60 Hz, ELETTRO-VENTOLA (fan) |
U30 |
4 | Motor phase |
| 18 | 5 | SONDA TERMICA (NC) - thermal probe |
V30 |
6 | Motor phase |
| - | 7 | Common with pin 2 |
W30 |
8 | Motor phase |
| 16 | 9 | 0 Vac, fan |
🔴 The two thermal probes are wires 57 and 18. CONN.C pins 31 and 32 take them to -U1:SC and -QFRI:13 - the inverter's common and the brake-resistor breaker. So a hot spindle trips the inverter's external fault input. Another hardware interlock to preserve.
AM - sensors, 22 pin¶
| Wire | Pin | Function |
|---|---|---|
E121 |
1 | SENSORE LETTURA POSIZIONE 0 INDEX |
E117 |
2 | SENSORE LETTURA POSIZIONE TIRANTE (drawbar position) |
| 14 | 4 | 24 Vdc sensor supply |
| 12 | 6 | 0 Vdc sensor return |
🔴 The spindle has an index sensor, and the PLC names it something else¶
E121 is the wire for IF.21, which MW310.EQU calls IF_PIST_CAMBIO_GIU1 - "tool change piston down", and sheet 18 draws as -SQ203. Physically it is the spindle zero/index position sensor.
Likewise E117 is IF.17, called IF_PREUTE1 "tool present" and drawn as -SQ204. Physically it is the drawbar position sensor - which does indicate whether a tool is clamped, so the PLC's name is fair, but the drawing is more precise.
Consequence: spindle orientation is achievable. AXIS 4 on the Monoscheda is S, Syncro.prm carries an S-axis parameter block, and there is a real index sensor on a real input. Orientation for tool change would be: run slow, stop on the index. Worth building into the ATC phase plan rather than discovering later.
⚠️ General lesson: the PLC symbol names describe the PLC's use, not always the physical device. Where they disagree, the drawing is authoritative. Already seen on the carousel outputs; now again here.
=BM+X5-V1 - the valve connector, SGM page 9¶
Cable PF 25x0.25, 1 m. Confirms the derivation from the cable schedule exactly.
| Pin | Conductor | Valve | Output |
|---|---|---|---|
| 1 | BIANCO | Y131 |
OF.16 |
| 2 | MARRONE | Y132 |
OF.17 |
| 3 | VERDE | Y133 |
OF.18 |
| 4 | GIALLO | Y101 |
OF.10 |
| 5 | GRIGIO | Y102 |
OF.11 |
| 6 | ROSA | Y103 |
OF.12 |
| 7 | BLU | Y104 |
OF.13 |
| 8 | ROSSO | Y105 |
OF.14 |
| 9 | NERO | Y106 |
OF.15 |
| 10 | VIOLA | Y107 |
OF.25 |
| 11 | GRIGIO/ROSA | Y108 |
OF.26 |
| 12 | ROSSO/BLU | Y109 |
OF.27 |
| 13 | BIANCO/VERDE | Y110 |
OF.28 |
| 17, 18 | BIANCO/GRIGIO, GRIGIO/MARR. | common, wire 7 to -X5:7 |
|
| 19, 20 | BIANCO/ROSA, ROSA/MARR. | PE/G.V/1, COLL. A TERRA |
|
| 21-25 | BIANCO/BLU, MARR./BLU, BIANCO/ROSSO, MARR./ROSSO, BIANCO/NERO | spare |
Five more spare conductors, bringing the total spare between cabinet and machine to seventeen.
Still to read¶
SGM pages 11 and 12. COLLEGAMENTI SERIALI is the last named drawing unaccounted for anywhere in the document.
SGM pages 11-12 - COLLEGAMENTI SERIALI¶
The last two pages, and the drawing that had been missing all along. It is in the SGM section, not the Q.E. section.
Four serial cables converge on the PC (P.C./CN12, ports COM1 and COM2):
| Name | Part | Connectors | Route | |
|---|---|---|---|---|
| A | SERIALE SYNCRO-P.C. |
CAV90240 / 025TEC0028 |
DB-9F to DB-9F, null modem 2-3, 3-2, 5-5, shield to shells, two 13 V F-126 suppressor diodes |
PC to Monoscheda. The tap goes here. |
| B | SERIALE ARMADIO-P.C. |
CAV90420 / 025TEC0030 |
DB-25F to DB-9F, 3-wire, shield, two suppressor diodes | Cabinet PULSANTIERA to PC |
| C | SERIALE PC-YASKAWA |
- | DB-9M to DB-9F, shield to shells | 3CN on the Yaskawa Sigma drives |
| D | SERIALE PC-PANASONIC |
- | mini-DIN to DB-9F, shield both ends | CN SER on the Panasonic |
Full write-up in serial-port.md. Two consequences worth repeating here:
🔴 The PC-to-Tecnos link is a plain three-wire null modem with no handshake lines, so a passive listening tap is trivial and carries no risk of disturbing the link.
🔴 The servo drives have serial service ports (3CN), so the complete Pn parameter dump can be read over serial rather than transcribed from the front panel.
The document is complete¶
| Section | Pages | Status |
|---|---|---|
| Q.E. schematics | 40 | ✅ All read |
LISTA DISPOSITIVI |
13 | ✅ All read |
SGM connector schedules |
12 | ✅ All read |