EncoderWorks can configure OCD-PPA1G-0012-B120-PAP as a custom compatible replacement solution for absolute singleturn feedback where 12-bit parallel data, Gray-code reading, latch behavior, DIR logic, and M23 16-pin axial mapping must remain aligned with the installed controller. The failure boundary is not only the 10–30 V push-pull level, but also bit order, sampling timing, connector pinout, blind-hollow shaft fit, rear connector clearance, and direction logic. Typical production lead time: 15 working days.
This model is used where the control system reads an absolute singleturn position word through a Bit Parallel interface. A compatible replacement must preserve the 12-bit singleturn data structure, push-pull output behavior, Gray-code interpretation, latch input function, counting direction input, axial connector orientation, and Ø12 mm blind-hollow mechanical interface.
System Limits
The first system boundary is the 12-bit parallel data structure. OCD-PPA1G-0012-B120-PAP uses Bit 1 to Bit 12 as discrete position data lines, with Gray-code position data read by the controller. If the replacement changes bit order, reverses data significance, removes the latch function, changes DIR behavior, or uses a different output-driver assumption, the controller can receive electrical transitions but calculate the wrong position. Typical failure symptoms include position jumps, reversed travel, unstable end-position detection, wrong angular value, or intermittent data errors during motion.
The second boundary is the latch, DIR, and M23 16-pin connector relationship. The controller must sample the parallel word at the correct logic point, so latch input behavior, direction input status, supply reference, GND integrity, and connector pin mapping must remain consistent. A replacement can fail even when voltage and resolution match if the latch line is left floating, the DIR line is wired with the wrong polarity, or one data bit is shifted by a single pin.
Wiring & Installation
Before replacement, confirm the full installed model code, 10–30 V supply, push-pull parallel input compatibility, 12-bit data mapping, Gray-code handling, latch input use, DIR input logic, M23 16-pin axial connector orientation, and controller sampling method. Do not treat this as an incremental encoder replacement, because the controller is reading a complete absolute singleturn position word rather than counting pulses over time.
The blind-hollow shaft installation must also be checked carefully. The Ø12 mm hollow interface, clamping condition, torque restraint, connector rear clearance, shaft insertion depth, and static or dynamic misalignment can affect bearing load and long-term stability. Poor clamping, side load, axial connector stress, or shield discontinuity can cause mechanical drift, intermittent data faults, or early bearing wear.
Custom Compatible Solution
- Match 12-bit singleturn Bit Parallel feedback with Gray-code output behavior
- Preserve Bit 1–12 mapping, latch function, DIR logic, supply reference, and M23 16-pin connector assignment
- Adapt the Ø12 mm blind-hollow shaft, 58 mm flange class, axial connector orientation, and mechanical mounting boundary
- Review controller sampling timing, cable shielding, grounding, rear connector clearance, and shaft misalignment before shipment
Key Data
| Item | Data |
|---|---|
| Model | OCD-PPA1G-0012-B120-PAP |
| Encoder type | Absolute singleturn rotary encoder |
| Interface | Bit Parallel |
| Output driver | Push-Pull |
| Supply voltage | 10–30 VDC |
| Code | Gray |
| Singleturn resolution | 12 bit |
| Multiturn resolution | Not applicable |
| Total data width | 12-bit parallel data |
| Manual function | Counting direction via cable or connector |
| Connection | M23 male, 16 pin |
| Connection orientation | Axial |
| Shaft / flange | Blind hollow, Ø12 mm shaft, 58 mm B flange class |
| Protection class | IP64 / IP65 boundary requires confirmation against installed version |
| Key replacement checks | Bit 1–12 mapping, latch timing, DIR logic, push-pull input match, M23 16-pin wiring, blind-hollow shaft fit |
