ER-J-7200D
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The ER-J-7200D is an 8.5 Kg industrial robot joint with a maximum torque of 120 Nm and ±0.02 mm repeatability. Manufactured by Okuma within the Absolute Encoders series, it features a rated power of 750W and operates on 220V AC. This unit is equipped with EtherCAT communication and IP65 ingress protection.
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Product Description:
The ER-J-7200D encoder by Okuma maintains complete accuracy by tracking all motor movements without having to start over. Through exceptional engineering Okuma developed highly accurate parts that run with smooth motions.
The ER-J-7200D absolute rotary encoder retains position data without requiring a homing procedure upon startup. Internally, it utilizes a resolution of around 2048 pulses per revolution and this can vary based on firmware variation. The encoder is powered by a stable 5 V DC supply voltage with a tolerance of ±5% for consistent functioning in different industrial automation settings. Output signaling is delivered through a serial digital protocol which aids in ensuring direct connectivity without external signal conversion. For physical installation, the unit is built for shaft mounting on the rear of the servo or spindle motor by using a precision-coupled interface to ensure accurate feedback transmission. It maintains functionality between temperatures from minimum 0°C to 55°C without disturbing its overall working. The processing operation of the system completes in approximately 10 microseconds through a 30MHz onboard oscillator which keeps timing precise.
The ER-J-7200D encoder contains a metal casing that joins with an internal fiber-printed circuit board with both position-tracking optical discs as well as a photodetector system. The controller consists of three main components consisting of the QFP processor model ERJ0101 together with Fujitsu or MBM27C512-20 EPROM and DS8830 line drivers that generate buffered digital output. The installed surface-mount stable category resistor-capacitor networks alongside signal protection elements serve as supplementary components for controlling its voltage regulation system. The system contains flat ribbon together with circular multipin connectors as cable interface elements to connect different servo units.
Frequently Asked Questions about ER-J-7200D:
Q: What type of signal does the ER-J-7200D Absolute Encoder from Okuma output?
A: The ER-J-7200D transmits a serial digital signal using a proprietary Okuma format. This ensures direct compatibility with Okuma’s motion control systems.
Q: How is the ER-J-7200D encoder from Okuma powered in servo applications?
A: The encoder operates on a 5V DC supply with a ±5% tolerance. This makes it suitable for stable and regulated industrial power sources.
Q: What mounting method is used for the Okuma ER-J-7200D encoder?
A: The ER-J-7200D is mounted to the shaft of a servo or spindle motor. It uses a mechanical coupling for precise feedback transmission.
Q: What is the temperature range for the ER-J-7200D encoder?
A: Okuma specifies a working range of 0°C to 55°C. This allows operation in temperature-controlled industrial environments.
Q: What internal clock frequency does the ER-J-7200D encoder use?
A: It uses a 30MHz onboard oscillator. This provides consistent internal timing for fast signal response and accurate tracking.
