Description

1. Decoding the suffix PIBV1.0 = 24 VDC logic, 16 safety inputs, 8 force-guided relays, 2 OSSD outputs, 2 × RS-485 (group + service), relay life 1 million cycles
   PIBV1.3 = V1.0 + reinforced 4 kV isolation, built-in self-test (BIT), LED bar-graph for quick diagnostics, MTBF 120 kh @ 40 °C
   Both versions share the same 180 × 120 mm footprint, 11-way pluggable terminals, –25 °C to +70 °C rating and UL 508 recognition.
2. Safety first—lock-out & verify The PIB sits on the 24 VDC logic rail but switches 110 V safety contacts.
   Lock the main disconnect, engage the car-top inspection switch and wait 60 s for the 110 V rail to fall below 5 V.
   Keep the new Nanjing Zhuye PIB in its anti-static bag until mounting—CMOS safety logic can latch at 15 V static.
3. Mechanical mounting—keep it cool Snap the PCB onto 35 mm DIN rail inside the controller.
   Maintain 50 mm clearance above and below; every 10 °C rise halves relay contact life.
   If the cabinet is < 150 mm deep, mount vertically with terminals down—this allows convection chimney.
   Nanjing Zhuye supplies a free DIN clip (NY-DIN-PIB) for panel-mount when rail space is tight.
4. Wiring map (print and stick inside door) 24 V & 0 V – 1.5 mm², 105 °C silicone, torque 0.8 N·m
   Safety inputs – 1.0 mm², 600 V, torque 0.6 N·m (dry contacts only)
   OSSD outputs – 0.5 mm², 30 V 1 A, torque 0.5 N·m
   RS-485 – twisted pair, 120 Ω termination at last node (DIP-1 ON)
   Earth – 4 mm² green/yellow to cabinet PE; relay leakage 0.3 mA
5. Power-up & self-test Apply 24 VDC; green “PWR” LED steady, red “FLT” off.
   Built-in test (BIT) runs for 3 s: all relays cycle, OSSD pulse, RS-485 echo.
   If any LED fails, the board locks out and transmits “E-SAF” over the bus—replace immediately.
6. Relay functional test (per EN 81-20) With the car on inspection, open each safety contact in turn; the corresponding relay must drop and OSSD must go low (< 0.5 V).
   Force-guided contacts are linked; if one welds, the other opens—verify with ohmmeter < 1 Ω closed, > 10 MΩ open.
   Document the test report; inspectors love to see it.
7. Temperature & lifetime model Relay contacts: 1 million cycles; at 300 door cycles/day = 9 years.
   Opto-isolators: 50 kh @ 70 °C, double every 10 °C drop.
   Capacitor C1 (47 µF, 35 V): 2 000 h @ 105 °C, 64 kh @ 45 °C.
   Translate to building traffic: Light traffic (office, 150 cycles/day) – relays ≈ 18 years, optos ≈ 25 years, full board ≈ 15 years; inspect every 3 years. Medium traffic (mall, 400 cycles/day) – relays ≈ 7 years, optos ≈ 12 years, full board ≈ 8 years; inspect every 2 years. Heavy traffic (metro, 800 cycles/day) – relays ≈ 4 years, optos ≈ 6 years, full board ≈ 5 years; inspect every 12 months.
8. Built-in test (BIT) diagnostics (PIBV1.3 only) Press and hold TEST button 3 s; LED bar runs left-to-right.
   Any segment stuck off indicates a failed channel—replace board.
   BIT result is transmitted over RS-485; remote BMS can log it for predictive maintenance.
9. Preventive inspection checklist Monthly: visual LED bar, listen for relay clicking during door cycle. Quarterly: measure 24 VDC ripple at J1; > 200 mVpp indicates supply fatigue. Annually: megger safety contacts to PE > 100 MΩ; < 10 MΩ indicates carbon track. Bi-annually: torque test 24 V and safety screws; vibration loosens them, causing intermittent “E-SAF”.
10. Rapid swap (downtime < 10 min) a) Power down, lock-out, wait 60 s. b) Photograph J1-J3 and safety wire numbers with phone. c) Remove DIN clip, slide old board out. d) Insert new Nanjing Zhuye PIBV1.0/V1.3, snap onto rail. e) Restore wires in exact order, ferrule and torque 0.8 N·m. f) Power up, run BIT, verify green LED. g) Run safety-chain functional test. h) Log serial number and cycle counter; return old unit for recycling.
11. Recycling & sustainability Nanjing Zhuye offers prepaid DHL labels inside every carton. Returned boards are stripped: gold fingers go to certified refinery, plastic housing re-granulated, relay silver recovered. One recycled PIB saves 2.1 kg CO₂—enough to power the same controller for a week.