NewElec’s MA RDU 216 panel mounted keypad entry display unit can be used as a handheld programming and display unit for the NewElec MA range of motor protection relays. The unit permits users to set all protection parameters and monitor values while the motor is in operation. It also allows fault alarms and real-time clock logged faults to be viewed.
A security device connected in line with the serial communication cable is required in order to alter any settings, eliminating unauthorised alterations. If the device is not present, read-only functionality is available.
All functions are accessible via a membrane keypad, while the backlit LCD display is used to indicate the menu driven requested values. It is also used to prompt the operator as to which key to press in the event of a multiple keystroke sequence.
The MA RDU 216 accommodates up to eight memory slots for storing information, allowing the set-up parameters to be downloaded to the appropriate MA motor protection relay.
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