Power distribution (BOM Rev 5)

Split-RCD topology per Beckhoff AX5000 System Manual §8.9: Type A/AC RCDs cannot reliably detect the smooth-DC residual current of the AX5000 rectifier front end, so the servo branch gets a Type B RCCB and the human-accessible 24 V branch gets a separate Type A 30 mA RCCB. Never one shared RCD for both branches.

SITE SUPPLY 45 kW / 380 V / 3PH+N+PE   (neutral required — confirm TN-S)
 └─ W101 (5C, ≥25 mm² Cu — verify) → Q1 TeSys GV3P73 MPCB, set 67–70 A  (LOTO isolation point)
     └─ main busbar L1 L2 L3 N PE  (+ SPD Acti9 iPRD1 12.5r A9L16482, Type 1+2 — pending site decision)
         ├─ BRANCH 1 — SERVO AC
         │   -F5 Acti9 iID A9Z65480  (RCCB 4P Type B-SI, 80 A / 300 mA)
         │    └─ -K2 TeSys Deca LC1D80P7  (AC-3 80 A, coil 230 V — routine PLC / E-stop switching)
         │        └─ -Z1..-Z3 AX2090-NF50 EMC filter(s), ≤0.4 m from each drive
         │            ├─ F1 3×25 A ──W102──► -A1 AX5125 (PITCH, cabinet)
         │            └─ F2 3×40 A ──W103──► PWR SR1 ─W104─► PWR SR2 ─W105─► -XB1 branch box (yaw stage)
         │                                     ├─ F3 3×20 A ──W106──► -A2 AX5118 (YAW)
         │                                     ├─ PSU2 feed (3×380 V input)
         │                                     └─ W107 ──► PWR SR3 ──► F4 3×20 A ──W108──► -A3 AX5118 (ROLL)
         │                                                                  └─ PSU3 feed
         └─ BRANCH 2 — 24 V DC CONTROL  (L1 + N ONLY, ~230 V — NEVER phase-to-phase)
             -F6 Acti9 iID A9R61440  (RCCB 4P Type A-SI, 40 A / 30 mA)
              └─ -F7 Acti9 iC60N 1P C6
                  └─ -K3 TeSys Deca LC1D25P7  (2 poles used: L + N)
                      └─ -G1 Omron S8VK-C24024  (24 V DC / 10 A) → W113 → -A1 X03, -K1, -A0

-G1 input is 264 V AC max

Branch 2 must be tapped single phase + neutral. Wiring it phase-to-phase on the 380/400 V system destroys the PSU. This warning is also printed on SLD-001.

Sizing notes

• Q1 setpoint: Σ AX5000 rated currents (25 + 18 + 18 = 61 A) × 1.1 = 67.1 A min → set 67–70 A. Q1 stays closed in normal operation; -K2 does routine switching.
• Q1 sits upstream of both RCCBs — RCCBs have no short-circuit protection of their own.
• W103/W104/W105/W107 = 4C × 10 mm² — they carry the combined yaw + roll current (36 A) and W107 is protected only by F2 (40 A) until F4. Class 6 flex on all moving runs.
• F4 as close to the SR3 rotor exit as practicable (reduced-section tap rule).
• PSU2/PSU3 must accept 3×380 V input — there is no neutral through the slip rings.
• W118/W119 L+N tap (4 mm²) ≤ 0.5 m — protected only by Q1 until -F7.

Schneider migration (Rev 4 → Rev 5)

Like-for-like brand substitution only — topology, safety architecture, slip-ring design and drive/motor specs unchanged.

Tag	Rev 4 (Siemens)	Rev 5 (Schneider)
Q1	3RV2041-4KA10	TeSys GV3P73
SPD	generic Type 2	Acti9 iPRD1 12.5r A9L16482 (Type 1+2)
-F5	5SV3647-5	Acti9 iID A9Z65480
-F6	5SV3347-6KK12	Acti9 iID A9R61440 (40 A frame — right-sized)
-K2	3RT2045-1AP00	TeSys Deca LC1D80P7
-F7	5SL6106-7YA	Acti9 iC60N 1P 6 A C (suffix TBD)
-K3	3MT7025-2AA10-0AL2	TeSys Deca LC1D25P7