MSJR4U10
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The MSJR4U10 is a timer and controller manufactured by Danaher. Part of their Timers and Controllers series, it features a digital PID speed regulation control type and a dual 4-digit, 7-segment LED display. The device operates on 90-264 VAC power and offers selectable analog outputs like 0-10 VDC or 4-20 mA.
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Product Description:
The Danaher developed the MSJR4U10 Digital speed controller for applications that demand precision rotational or linear speed monitoring and control. The controller is an electronic rate meter and tachometer. The controller has a 1/8 DIN size of 48x96 mm. It can operate with both 120 VAC and 240 VAC supply power.
The MSJR4U10 digital speed controller can run at 50 Hz or 60 Hz frequency. It accommodates a variety of input types, including NPN and PNP sensors, switch or contact closures, and incremental encoder-quadrature. The display is a five-digit LED. The programming is done using a keypad, dipswitch, and jumper. The controller provides speed, ratio, process time, and jog setpoints. The controller supports proportional, integral, and derivative loop control, as well as velocity feedforward. The controller guarantees zero cumulative error in follower mode. Alarm outputs are offered at both high and low speeds. The controller includes an independent analog output for drive control. It specifies security settings for setpoints, PID gains, and program data. The controller includes many input scaling options, which allow for precise measurement and control. The controller is designed to provide operating stability and no drift in follower mode. It includes an independent analog output for connection to external control systems.
The operational temperature range is 32-122°F (0-50 °C), whereas the storage temperature range is 0-186°F (-18-85 °C). The ambient humidity tolerance ranges from 0 to 90% noncondensing. When utilized with the supplied panel gasket, the front panel seal meets NEMA 4 and IP65 specifications. The MSJR4U10 digital speed controller has a follower operation mode in speed or process time units. The controller also has high and low speed alarm outputs integrated into the control function.
Frequently Asked Questions about MSJR4U10:
Q: Does MSJR4U10 have multiple input options for flexibility?
A: Yes, the controller accepts NPN, PNP, switch/contact closure, and incremental encoder inputs. This ensures broad compatibility with different sensor types used in process control.
Q: Why does MSJR4U10 have zero cumulative error in follower mode?
A: Zero cumulative error prevents drift in speed or time tracking. It maintains process accuracy over long periods of continuous operation without manual recalibration.
Q: How does MSJR4U10 use high and low-speed alarm outputs?
A: These alarms activate when speed exceeds or falls below set limits. They help protect equipment and maintain desired process parameters consistently.
Q: Why does MSJR4U10 include an isolated analog output?
A: The isolated analog output allows safe interfacing with external control systems. It reduces the risk of electrical interference affecting measurement accuracy or control performance.
Q: Does MSJR4U10 have security levels for program data?
A: Yes, it offers multiple security levels for setpoints, PID gains, and program data. This prevents unauthorized changes that could disrupt process stability.
