We developed a custom solution for the FG4S-1200G-90G-NG encoder, intended for heavy-duty industrial environments where incremental feedback must remain stable under vibration, shock, and electrical interference while providing increased pulse detail. This configuration uses a 1200 pulse output, placing it above the balanced range and into a controlled frequency-sensitive zone of the FG4 platform. It is not a wide-margin design. It is a controlled configuration where transmission quality and electrical margin determine whether the signal remains usable. Typical production lead time: 15 working days under confirmed configuration.
Custom Solution Photos
Signal stability at this pulse level depends directly on the structure, cable routing, and installation quality shown here.
System Limits
This configuration is limited by output frequency and signal transmission quality, not by mechanical capability.
At 1200 pulses, electrical frequency begins to define the usable operating window more clearly than in lower-pulse configurations. The system does not fail because of shaft strength or housing rigidity. It fails when frequency margin is reduced under higher speed, when signal edges degrade due to poor transmission conditions, or when controller-side input handling becomes unstable.
Priority of limits:
- Signal transmission quality becomes critical before mechanical limits are reached
- Electrical frequency reduces usable operating margin as speed increases
The first failure point is signal transmission, not mechanical strength.
Installation and Wiring Constraints
Electrical installation determines whether the encoder can remain usable.
- Shielded twisted-pair wiring is required for stable pulse transmission
- Inverted and non-inverted channels must be routed as matched pairs
- Poor grounding or shielding will distort signal edges and reduce reliability
- Higher pulse density reduces tolerance to cable loss and edge distortion
Field boundary:
- Long cable without proper shielding → pulses become unusable
- Parallel routing with power lines → controller cannot interpret signal correctly
- Weak input capability or poor edge handling → counting fails before mechanical limits are reached
Incorrect wiring will invalidate signal usability before any mechanical limit is reached.
Replacement and Interface Mapping
- Only valid for systems supporting incremental pulse input
- Suitable for applications requiring increased pulse detail under controlled transmission conditions
- Not applicable where wide electrical margin or relaxed EMC installation is required
- Output form and connection configuration can be adapted
Key Data
- Model: FG4S-1200G-90G-NG
- Type: Incremental encoder
- Resolution: 1200 pulses
- Output: Incremental A/B/Z
- Signal type: Differential (recommended)
- Frequency range: up to 100 kHz standard, up to 150 kHz on request
- Supply voltage: 12–30 VDC
- Protection: Heavy-duty industrial design
- Structure: Solid shaft, reinforced housing
FG4S-1000G-90G-NG Balanced Output Encoder
FG4S-500G-90G-NG Stable Signal Encoder
FG4S-250G-90G-NG Industrial Output Encoder
FG4S-150G-90G-NG Extended Margin Encoder
