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.

The I/O wiring map

2 September 2026. Built from wiring diagram sheets 16-20 (INPUT IF1-IF5) together with Mw310\Sv\MW310.EQU. This is the document the whole "plan the wiring" exercise was aiming at.

🔴 The wire-numbering rule

Rule	Evidence
Input IF.n carries wire E1nn	Sheets 16-20 show EIN1=E101 through EIN40=E140, all forty, no exceptions
Output OF.n carries wire A2nn	Sheet 5: OF.21=A221, OF.22=A222. Cable schedule: A210→valve Y101 (OF.10, drill 1), A216→Y131 (OF.16, horiz drill 1), A228→Y110 (OF.28, drill 10), A237 (OF.37, zone lamp D)

Every one of the 82 I/O points can be located in the cabinet by its wire tag, derived directly from its MW310.EQU address. No tracing, no output toggling, no LED photography.

Combined with EIN n = IF.n (proved on sheet 16) and AUS n = OF.n (proved on sheet 5), the symbolic map transfers to physical terminals completely.

Channel notation

Each module box on the input sheets reads:

-IFn  /33.x        <- the module, and where it appears on the I/O rack sheet
Slot  n
n/p                <- slot number / point number
Canale  EINnn      <- the channel

Every module also has a supply channel n/- marked Alim, fed by wire 12.

The complete input map

Terminal groups: =BM+X3, =BM+X4, =BM+X5, =BM+X43. Connector pins -A, -B, -C, -D are the Harting multipoles CONN.A (32-pole), CONN.B (16-pole), CONN.C and CONN.D (32-pole) between cabinet and machine.

IF1, sheet 16, slot 1

Ch	EIN	IF.n	Wire	Device	Terminals	Function
1/1	EIN1	IF.1	E101	-SB603	=BM+X3, -X3 14/-X3 E101, -A 4	START ZONA A
1/2	EIN2	IF.2	E102	-SB613	-X3 E102, -A 5	START ZONA D
1/3	EIN3	IF.3	E103	-SB601 foot pedal	-X3 E103, -A 6	BLOCCO CAMPO A
1/4	EIN4	IF.4	E104	-SB611 foot pedal	-X3 E104, -A 7	BLOCCO CAMPO D
1/5	EIN5	IF.5 unused	E105	(machine side)	-X3 E105, -A 8	PRESSIONE CAMPO A
1/6	EIN6	IF.6 unused	E106	(machine side)	-X3 E106, -A 9	PRESSIONE CAMPO D
1/7	EIN7	IF.7	E107	-SB8 → 800 → -SB7 → 801 → -SB6, all N.C. in series	-X3 14, -X3 800, -X3 801, -A 3	HOLD
1/8	EIN8	IF.8	E108	-KA4 contact 12-8, from 14A		EMERGENZA TERMICI - the summary fault, see safety-and-enable-chain.md

IF2, sheet 17, slot 2

Ch	EIN	IF.n	Wire	Device	Terminals	Function
2/1	EIN9	IF.9	E109	-SP600 vacuum pressure switch	=BM+X3, -X3 E109, -A 10	CONTROLLO VUOTO
2/2	EIN10	IF.10	E110	-SQ201 magnetic sensor	=BM+X5, -X5 E110, -D 19	AGGREGATI SU
2/3	EIN11	IF.11	E111	-SQ140 magnetic sensor	-X5 E111, -D 20	LAMA SU
2/4	EIN12	IF.12	E112	-FR1 FEED OVER-RIDE BIT0, verde		OVER-RIDE
2/5	EIN13	IF.13	E113	-FR1 BIT1, marrone		OVER-RIDE
2/6	EIN14	IF.14	E114	-FR1 BIT2, grigio		OVER-RIDE
2/7	EIN15	IF.15	E115	-FR1 BIT3, bianco		OVER-RIDE
2/8	EIN16	IF.16	E116	-KAMF contact 21-22		TELERUTTORE INSERITO

-FR1's supply is +24V on a giallo conductor.

IF3, sheet 18, slot 3

Ch	EIN	IF.n	Wire	Device	Terminals	Function
3/1	EIN17	IF.17	E117	-SQ204 inductive	=BM+X5, -AM 4/-AM 6, -X5 12, -X5 E117, -D 21	PRESENZA UTENSILE
3/2	EIN18	IF.18	E118	-SB201 pushbutton	-X5 E118, -D 22	SBLOCCO UTENSILE MANUALE
3/3	EIN19	IF.19 unused	E119	from 26.8		PORTELLO APERTO / OPEN DOOR
3/4	EIN20	IF.20	E120	-SP201 pressure switch	=BM+X4, -X4 E120, -C 9	PISTONE CAMBIO SU
3/5	EIN21	IF.21	E121	-SQ203 inductive	=BM+X5, -AM 4/-AM 1, -X5 12, -X5 E121, -D 23	PISTONE CAMBIO GIU
3/6	EIN22	IF.22	E122	-SQX + -SQX-. in series	=BM+X43, -X43 E122, -B 6	EXTRACORSA ASSE X
3/7	EIN23	IF.23	E123	-SQY + -SQY-. in series	=BM+X4, -X4 E123, -C 10	EXTRACORSA ASSE Y
3/8	EIN24	IF.24	E124	-SQZ + -SQZ-. in series	=BM+X4, -X4 E124, -C 11	EXTRACORSA ASSE Z

⚠️ The channel numbers for EIN22-24 are hard to read on the scan and could be 3/6-3/8 or something else. 3/6-3/8 is what the EIN n = IF.n rule requires. Confirm on sheet 33.

🔴 The axis limit switches have two contacts each. One pair goes to the drives' P-OT/N-OT (sheets 7-9, as -SQX+/-SQX-); the other pair comes here in series as EXTRACORSA. Both paths are inherited by the retrofit.

IF4, sheet 19, slot 4

Ch	EIN	IF.n	Wire	Device	Terminals	Function
4/1	EIN25	IF.25	E125	from the inverter RUNNING output via -OPT1 (sheet 5.5)		VELOCITA' RAGGIUNTA / SPEED OK
4/2	EIN26	IF.26	E126	-SQ131 magnetic sensor	=BM+X5, -X5 E126, -D 24	UT. ORIZZONTALE 1
4/3	EIN27	IF.27	E127	-SQ132	-X5 E127, -D 25	UT. ORIZZONTALE 2
4/4	EIN28	IF.28	E128	-SQ133	-X5 E128, -D 26	UT. ORIZZONTALE 3
4/5	EIN29	IF.29	E129	-SBEC white pushbutton		END CYCLE - the other 0.0.0090 branch
4/6	EIN30	IF.30	E130	-SB2 white pushbutton		JOG −
4/7	EIN31	IF.31	E131	-SB3 white pushbutton		VELOCE / FAST
4/8	EIN32	IF.32	E132	-SB4 white pushbutton		JOG +

✅ This answers HANDOVER.md next-action 1. The jog controls are four white 16 mm XB6-DA11B pushbuttons: SBEC end cycle, SB2 jog minus, SB3 fast, SB4 jog plus. Device list places them at 19.5-19.8.

IF5, sheet 20, slot 5

Ch	EIN	IF.n	Wire	Device	Terminals	Function
5/1	EIN33	IF.33	E133	FTC1A + FTC2A + FTC3A in series	=BM+X3, -X3 14/-X3 12, wires 850, 852, -A 11	FOTOCELLULE CAMPO A
5/2	EIN34	IF.34	E134	FTC1B + FTC2B + FTC3B in series	wires 851, 853, -A 12	FOTOCELLULE CAMPO D
5/3	EIN35	IF.35	E135	-OPT11 NPN-PNP, from E1/10.3		POSIZIONE RAGGIUNTA (COIN)
5/4	EIN36	IF.36	E136	-OPT12, from E2/10.3		POSIZIONE BIT 1 (P1OUT)
5/5	EIN37	IF.37	E137	-OPT13, from E3/10.4		POSIZIONE BIT 2 (P2OUT)
5/6	EIN38	IF.38	E138	-OPT14, from E4/10.4		POSIZIONE BIT 3 (P4OUT)
5/7	EIN39	IF.39	E139	-OPT15, from E5/10.4		POSIZIONE BIT 4 (P8OUT)
5/8	EIN40	IF.40	E140	-OPT16, from E6/10.5		POSIZIONE BIT 5 (P16OUT)

🔴 Six photocells, not two. Three per zone, series-connected into one input each. Relevant to the phase-5 pendulum work, which will need all six proven.

IF6, sheet 21 - not yet read

IF.41, IF.42, IF.47, IF.48 are unassigned in MW310.EQU; IF.43-IF.46 are the ATC gripper and carousel reset plus the oil level sensor.

Wired but unused inputs - free for the LinuxCNC build

IF.n	Wire	Function	Why it matters
IF.5	E105	Air pressure, field A	Pressure sensing is something a retrofit wants
IF.6	E106	Air pressure, field D	same
IF.19	E119	Door open	A guarding signal already run and terminated
IF.41, IF.42, IF.47, IF.48	—	unknown until sheet 21

Outputs

The output map awaits sheets 23-28. The A2nn rule is already established, and the following are known from other sheets:

OF.n	Wire	Destination
OF.10-OF.15	A210-A215	Vertical drill valves Y101-Y106
OF.16-OF.18	A216-A218	Horizontal drill valves Y131-Y133
OF.21	A221	Inverter S1 FWD RUN/STOP
OF.22	A222	Inverter S2 REV RUN/STOP
OF.25-OF.28	A225-A228	Vertical drill valves Y107-Y110
OF.29, OF.30	A229, A230	X datum stops, fields A/E/I and D/H/L
OF.37	A237	Zone lamp D/H/L
OF.41-OF.47	A241-A247	Panasonic EMG, SVON, STB, P1IN, P2IN, P4IN, P8IN
OF.48	42	KM200 spindle contactor, gated on inverter ZERO SPEED

Related

• mw310-recon.md - the symbolic map from MW310.EQU
• tecnos-io-rack.md - modules, ribbons and the rack layout
• safety-and-enable-chain.md - what IF.8 actually reports
• device-list.md - part numbers for every device named above

---

Part 2 - the axis connectors, the home switches, and the outputs

Added 2 September 2026 from sheets 21, 22, 23, 24 and 25.

🔴 The home switches - sheet 22, F.C. O ASSI

FINECORSA ZERO ASSE X / Y / Z - "zero axis micro". One per axis:

Axis	Switch	Wire	Route
X	-BOX	137	-X 6 → -B 5 → =BM+X43, -X43 137 → BOX (1-2) → -X43 14
Y	-BOY	138	-Y 6 → -C 19 → =BM+X4, -X4 138 → BOY → -X4 14
Z	-BOZ	139	-Z 6 → -C 20 → -X4 139 → BOZ → -X4 14

They return to the axis card on pin 6 of each axis connector, not to the PLC. That is why they appear nowhere in MW310.EQU and why the homing method could not be found from the software.

This settles the homing question

Homing is switch plus index, run entirely by the Syncro axis card:

1. Rapid at VTAR rap (100) until the zero micro BOX/BOY/BOZ trips
2. Creep at VTAR len (40)
3. Latch on the encoder index, PCO on CN1 19/20
4. Apply the offset Q.TARAT (X: −10.00 mm)

LinuxCNC reproduces this exactly with HOME_SEARCH_VEL, HOME_LATCH_VEL, HOME_USE_INDEX and HOME_OFFSET. Nothing needs inventing and nothing needs adding.

The carousel has its own equivalent: EIN46 O ASSE 560, from -KA560 which is driven by the proximity switch -SQ560.

🔴 The axis connector pinout

-X n, -Y n, -Z n and -S n are pin numbers on the 15-pin D-subs CONN.X, CONN.Y, CONN.Z and CONN.S (Zaniboni 1402005, male - this is the LOOM end, with 1413014 cover; the Housing panel end is female). Compiled from sheets 5, 7, 8, 9 and 22:

Pin	Signal	Drive CN1 pin	Wire X	Wire Y	Wire Z	Conductor
3	Encoder B	35 PBO	64	78	92	giallo
4	Encoder A	33 PAO	63	77	91	blu
5	Encoder O (index)	19 PCO	65	79	93	grigio
6	Zero / home switch	-	137	138	139	-
7	0 V common	-	014	014	014	-
8	Speed reference	5 V-REF	69	83	97	2x0.50 screened
9	Encoder common	1 SG	62	76	90	marrone
10	Encoder B-bar	36 /PBO	67	81	95	rosa
11	Encoder A-bar	34 /PAO	66	80	94	verde
12	Encoder O-bar	20 /PCO	68	82	96	bianco
13	Servo on	40 /S-ON	71	85	99	-
15	Reference 0 V	6 SG	70	84	98	2x0.50 screened

Pins 1, 2 and 14 are unused. DRIVER OK (wires 72 / 86 / 100) does not pass through this connector; it goes to the KAX/KAY/KAZ relays in the cabinet.

CONN.S follows the same convention: the spindle speed reference is on pins 15 (marrone) and 8 (bianco), per sheet 5.

✅ CLOSED 2 Sep 2026 by the SGM connector schedules (connector-schedules.md, pages 6-8), which name the conductor colour against every pin. The 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. Colours: pin 3 YE, 4 BL, 5 GR, 8 BN, 9 RD-BN, 10 PK, 11 GN, 12 WH, 15 WH.

Rack slot numbering

Modules	Slots	Channel notation
IF1-IF6 (inputs)	1 to 6	1/1-1/8 through 6/1-6/8
UF1-UF6 (outputs)	10 to 15	1/1-1/8 through 6/1-6/8

Each module also has a supply channel (n/-) on wire 12.

Output modules present contact outputs: three terminals per channel (changeover), numbered 1-24 across the module with 25 as the supply.

IF6, sheet 21, slot 6

Ch	EIN	IF.n	Wire	Device	Terminals	Function
6/1	EIN41	IF.41 unused	-	not fitted	-	CARRELLO IN POS. CAMBIO
6/2	EIN42	IF.42 unused	-	not fitted	-	CARRELLO INDIETRO
6/3	EIN43	IF.43	E143	-SQ563 magnetic	=BM+X43, -X43 E143, -B 13	PINZA SU
6/4	EIN44	IF.44	E144	-SQ564 magnetic	-X43 E144, -B 14	PINZA GIU
6/5	EIN45	IF.45	E145	-SL2 level switch	-X43 E145, -B 7	LIVELLO OLIO CHIOCCIOLA
6/6	EIN46	IF.46	E146	-KA560 contact 10-6	from wire 14	O ASSE 560 (carousel zero)
6/7	EIN47	IF.47 unused	-	-	-	-
6/8	EIN48	IF.48 unused	-	-	-	-

EIN41 and EIN42 carry function labels but no wiring - options this machine was not built with. EIN47 and EIN48 are blank.

The output map

UF1, sheet 23, slot 10

Ch	AUS	OF.n	Wire	Device	Terminals	Function
1/1	AUS1	OF.1	A201 (also wire 17)	to 11.6, the -KA enable relay		CNC OK
1/2	AUS2	OF.2	A202	-Y603 + -Y603B valves	-A 21, -X3 A202	VUOTO ZONA A
1/3	AUS3	OF.3	A203	-Y613 + -Y613B	-A 22, -X3 A203	VUOTO ZONA D
1/4	AUS4	OF.4 unused	A204		-A 23, -X3 A204	DOPPIA BATTUTA YA
1/5	AUS5	OF.5 unused	A205		-A 24, -X3 A205	DOPPIA BATTUTA YD
1/6	AUS6	OF.6	A206	-Y602	-A 25, -X3 A206	RIFERIMENTO A (Y datum, field A)
1/7	AUS7	OF.7	A207	-Y612	-A 26, -X3 A207	RIFERIMENTO D
1/8	AUS8	OF.8	A208	-SB603 lamp	-A 27, -X3 A208	SEGNALAZIONE CAMPO A

Supplied from rail 8A, with -C3 (1000 uF 63 V) as reservoir.

UF2, sheet 24, slot 11

Ch	AUS	OF.n	Wire	Valve	Terminals	Function
2/1	AUS9	OF.9	A209	-KM101 coil		MOTORE PUNTE
2/2	AUS10	OF.10	A210	-Y101	-D 3, -X5 A210, -V1 4	FORATORE VERTICALE T1
2/3	AUS11	OF.11	A211	-Y102	-D 4, -V1 5	T2
2/4	AUS12	OF.12	A212	-Y103	-D 5, -V1 6	T3
2/5	AUS13	OF.13	A213	-Y104	-D 6, -V1 7	T4
2/6	AUS14	OF.14	A214	-Y105	-D 7, -V1 8	T5
2/7	AUS15	OF.15	A215	-Y106	-D 8, -V1 9	T6
2/8	AUS16	OF.16	A216	-Y131	-D 9, -V1 1	FORATORE ORIZZONTALE 1

Supplied from rail 8B; KM101 from rail 2A. Valve returns on -V1 17/18 to -X5 7, PE on 19/20.

UF3, sheet 25, slot 12

Ch	AUS	OF.n	Wire	Device	Terminals	Function
3/1	AUS17	OF.17	A217	-Y132	-D 10, -X5 A217, -V1 2	FORATORE ORIZZONTALE 2
3/2	AUS18	OF.18	A218	-Y133	-D 11, -V1 3	FORATORE ORIZZONTALE 3
3/3	AUS19	OF.19	A219	-Y130	-C 12, =BM+X4, -X4 A219	CONTROPRESSIONE
3/4	AUS20	OF.20	A220	-Y140	-C 13, -X4 A220	LAMA GIU
3/5	AUS21	OF.21	A221 to 5.5, plus wire 116 via -KAA and -KA contacts to wire 18 (5.3)	inverter S1		START INVERTER
3/6	AUS22	OF.22	A222 to 5.5	inverter S2		INVERSIONE ROTAZIONE
3/7	AUS23	OF.23	A223	-Y201A	-C 14, -X4 A223	PANTOGRAFO SU
3/8	AUS24	OF.24	A224	-Y201B	-C 15, -X4 A224	PANTOGRAFO GIU

Supplied from rail 8B.

⚠️ Rails matter here: UF1 runs from 8A (gated by CNC OK via KA), UF2 and UF3 run from 8B (which passes a KAMF contact per sheet 11). Since KAMF means "spindle contactor open", that implies the drill, saw and pantograph outputs are inhibited while the router spindle contactor is closed. Worth verifying rather than assuming, but if true it is a hardware interlock to preserve.

🔴 The valve connector, fully specified

Sheet 24 and the DIN 47100 cable schedule cross-check exactly. -V1 is the 25-pin valve-bank connector (MASC250002, CONN. 25P+CAVO ... PER BATTERIA EV 3mt):

-V1 pin	DIN 47100 colour	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/giallo, giallo/marr.	common to -X5 7
19, 20	bianco/rosa, rosa/marr.	PE

So a vertical drill valve can be found by colour alone: OF.10 (drill 1) is the yellow conductor on pin 4.

Wired but unused outputs

OF.n	Wire	Function
OF.4	A204	Double stop YA
OF.5	A205	Double stop YD
OF.31-OF.34, OF.39	-	unknown until sheets 26-28

UF4, sheet 26, slot 13

Ch	AUS	OF.n	Wire	Device	Terminals	Function
4/1	AUS25	OF.25	A225	-Y107	-D 12, -X5 A225, -V1 10	FORATORE VERTICALE T7
4/2	AUS26	OF.26	A226	-Y108	-D 13, -V1 11	T8
4/3	AUS27	OF.27	A227	-Y109	-D 14, -V1 12	T9
4/4	AUS28	OF.28	A228	-Y110	-D 15, -V1 13	T10
4/5	AUS29	OF.29	A229	-Y601	-A 28, =BM+X3, -X3 A229	RIFERIMENTO XA (X datum, field A)
4/6	AUS30	OF.30	A230	-Y611	-A 29, -X3 A230	RIFERIMENTO XB
4/7	AUS31	OF.31 unused	-	-	-	(no label)
4/8	AUS32	OF.32 unused	E119	door circuit, wire 14 from 21.6	to E119/18.3	PORTELLO CHIUSO / CLOSED DOOR

Rails: 8B for AUS25-28, 8A for AUS29-30.

⚠️ The AUS32 position is where the door circuit is drawn: wire 14 through a contact to E119, which lands on EIN19 (IF.19). Whether that contact is the module channel or the door switch itself is not clear from the sheet. Either way, the door signal exists on wire E119 and IF.19 is unassigned in the PLC.

UF5, sheet 27, slot 14

Ch	AUS	OF.n	Wire	Device	Terminals	Function
5/1	AUS33	OF.33 unused	-	not fitted	-	CARRELLO IN POS. CAMBIO
5/2	AUS34	OF.34 unused	-	not fitted	-	CARRELLO INDIETRO
5/3	AUS35	OF.35	A235	-Y563	-B 15, =BM+X43, -X43 A235	PINZA SU
5/4	AUS36	OF.36	A236	-Y564	-B 16, -X43 A236	PINZA GIU
5/5	AUS37	OF.37	A237	-SB613 lamp	-A 30, =BM+X3, -X3 A237	LAMPADA CAMPO D
5/6	AUS38	OF.38	A238	-Y1 lubrication valve	-B 12, =BM+X43, -X43 A238, return -X43 3	LUBRIF. CHIOCCIOLA
5/7	AUS39	OF.39 unused	-	-	-	(no label)
5/8	AUS40	OF.40	A240	-Y202 valve and -SB201 button lamp	-C 16, -X4 A240; -D 16, -X5 A240	SBLOCCO UTENSILE

Rails: 8A for AUS35-37, 2A for AUS38, 8D for AUS40.

🔴 The lubrication output runs from rail 2A, not 8A, so it is independent of CNC OK. Sensible for a lube pump, and worth reproducing: the machine lubricates whenever the auxiliaries are on.

🔴 OF.40 drives both the tool-release valve and the button lamp, so the manual release button lights while release is active.

UF6, sheet 28, slot 15

Ch	AUS	OF.n	Wire	Destination	Function
6/1	AUS41	OF.41	A1 → 10.3	Panasonic EMG	RUN
6/2	AUS42	OF.42	A2 → 10.3	SVON	VAI IN POSIZIONE
6/3	AUS43	OF.43	A3 → 10.3	STB	POSIZIONE BIT 1
6/4	AUS44	OF.44	A4 → 10.4	P1IN	POSIZIONE BIT 2
6/5	AUS45	OF.45	A5 → 10.4	P2IN	POSIZIONE BIT 3
6/6	AUS46	OF.46	A6 → 10.5	P4IN	POSIZIONE BIT 4
6/7	AUS47	OF.47	A7 → 10.5	P8IN	POSIZIONE BIT 5
6/8	AUS48	OF.48	A248 (from rail 2A) and 42 (to 6.9)	-KM200 SET coil	MOTORE PANTOGRAFO

⚠️ The channel numbers on this sheet read 9/1-9/7 then 6/8 in the scan. 6/1-6/8 is what the pattern requires. Confirm on sheet 34.

🔴 KM200 is a mechanically latched contactor with separate set and reset coils. OF.48 energises the set coil (A1/A2) through A248. The reset path (E1/E2, sheet 6) runs through -OPT2, gated on the inverter's ZERO SPEED. So the contactor closes on command and only opens once the spindle has stopped. That is the correct direction for the interlock and it must be preserved.

The complete free-I/O list

All conditioned, terminated and unused by the PLC.

Free inputs	Function	Free outputs	Function
IF.5 (E105)	Air pressure, field A	OF.4 (A204)	Double stop YA
IF.6 (E106)	Air pressure, field D	OF.5 (A205)	Double stop YD
IF.19 (E119)	Door open	OF.31	no label
IF.41, IF.42	Carriage options, not fitted	OF.33, OF.34	Carriage options, not fitted
IF.47, IF.48	blank	OF.39	no label

Seven spare inputs and six spare outputs.

---

Part 3 - the rack, the terminals, and the Monoscheda panel

Added 2 September 2026 from sheets 33 (SCHEDE INPUT), 34 (SCHEDE OUTPUT) and 35 (MONOSCHEDA). This completes the wiring plan to the screw terminal.

The rack topology

Sheet 33, inputs:

CN1 (26-way from CNC) --> IF1  slot 1   EIN1-EIN8    sheet 16
                           |-- CN2 --> IF2  slot 2   EIN9-EIN16   sheet 17
                           +-- CN3 --> IF3  slot 3   EIN17-EIN24  sheet 18

CN4 (26-way from CNC) --> IF4  slot 4   EIN25-EIN32  sheet 19
                           |-- CN5 --> IF5  slot 5   EIN33-EIN40  sheet 20
                           +-- CN6 --> IF6  slot 6   EIN41-EIN48  sheet 21

Sheet 34, outputs:

CN10 (26-way from CNC) --> UF1  slot 10  AUS1-AUS8    sheet 23
                            |-- CN11 --> UF2  slot 11  AUS9-AUS16   sheet 24
                            +-- CN12 --> UF3  slot 12  AUS17-AUS24  sheet 25

CN13 (26-way from CNC) --> UF4  slot 13  AUS25-AUS32  sheet 26
                            |-- CN14 --> UF5  slot 14  AUS33-AUS40  sheet 27
                            +-- CN15 --> UF6  slot 15  AUS41-AUS48  sheet 28

IF1, IF4, UF1 and UF4 are the C3 head modules that take the 26-way from the controller; the rest are C1 modules chained from the head on 10-way ribbons. Exactly as device-list.md predicted from the part numbers.

🔴 Physical terminal numbering

Module	Terminals	Layout
Input (025TEC0001 C3, 025TEC0002 C1)	1-9	Terminal 1 = supply, wire 12. Terminals 2-9 = channels 1-8
Output (025TEC0003 C3, 025TEC0004 C1)	1-25	Three terminals per channel (changeover). Channel k = terminals 3k-2, 3k-1, 3k. Terminal 25 = supply

The formulas

For input IF.n: - Module = IF[floor((n-1)/8)+1] - Terminal = ((n-1) mod 8) + 2 - Wire = E1nn

For output OF.n: - Module = UF[floor((n-1)/8)+1] - Channel k = ((n-1) mod 8) + 1 - Terminal group = 3k-2, 3k-1, 3k; the wire lands on the middle one, 3k-1 - Wire = A2nn

✅ Both formulas are verified against the SGM connector schedules (connector-schedules.md), which name the module terminal directly for thirteen sampled points.

Worked examples

Address	Module	Terminal(s)	Wire	Device
IF.8 EMERGENZA	IF1	9	E108	KA4 contact 12-8
IF.29 END CYCLE	IF4	6	E129	-SBEC pushbutton
IF.35 ATC in position	IF5	5	E135	-OPT11
OF.1 CNC OK	UF1	1, 2, 3	A201	to -KA enable relay
OF.21 inverter run	UF3	13, 14, 15	A221	inverter S1
OF.48 spindle contactor	UF6	22, 23, 24	A248	KM200 set coil

The wiring plan is complete. Every one of the 82 points has an address, a module, a terminal number, a wire number, a cabinet terminal, a connector pin and a device.

Sheet 35 - the Monoscheda front panel

Position	Connector	Carries
AXIS 1	15-pin D-sub	X (CONN.X)
AXIS 2	15-pin D-sub	Y (CONN.Y)
AXIS 3	15-pin D-sub	Z (CONN.Z)
AXIS 4	15-pin D-sub	S - the spindle (CONN.S)
CN1 lower left, CN4 upper left	26-way IDC	Inputs
CN7 lower right, CN10 upper right	26-way IDC	Outputs
COM1, COM2	9-pin D-sub	Serial
FUSE 1, FUSE 2	1 A, on FILI VIOLA	CNC supply. ✅ Two fuseholders, confirmed from the panel photo 2 Sep - sheet 35 was read as naming only one
RUN, MOD, COM1, COM2	LEDs	Status

Two LED blocks reading A Z I Z A / B E I E B, one between AXIS 3 and AXIS 4, one between AXIS 1 and AXIS 2. Each block serves the two axes either side of it.

🔴 AXIS 4 is the spindle, not the carousel. That matches "POS. ASSE S" 4 in Param/pargen.prm and the S-axis parameter block in Syncro.prm. The Tecnos treats the spindle as its fourth axis and commands it by analog voltage, but only pins 15 and 8 of CONN.S are used, so the spindle loop is open.

✅ The panel layout matches the rack photographs: CN4 upper left, CN1 lower left.

⚠️ Naming wrinkle. The sockets on the Monoscheda panel are CN1, CN4, CN7, CN10. The cables in device-list.md and on sheets 33-34 are CN1, CN4, CN10, CN13. The input pair agrees by name; the two output cables land on sockets CN7 and CN10 in an order the drawing does not make explicit. Identify the ribbons by what they land on - IF1, IF4, UF1, UF4 - not by socket name or by the marker-pen labels.