Gestra TRS5-40
Gestra
产品编号: TRS5-40
生产厂家: Gestra
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Datasheets for Gestra TRS5-40
Description for Gestra TRS5-40
DescriptionThe control unit TRS 5-40 together with the temperature sensors TRS 5-6x and the temperature transmitter TRV 5-40 constitutes a temperature monitoring system. Two temperature sensors TRG 5-6x detect the temperature values which are then converted by the temperature transmitter TRV 5-40 and made available for the CAN bus in the form of a data telegram. The CANopen protocol is used for the data transfer via CAN bus. The control unit TRS 5-40 can be used ■ as MIN and MAX temperature monitor in combination with the temperature transmitter TRV 5-40 and with one temperature sensor TRG 5-6x each and ■ as temperature controller in combination with the temperature transmitter TRV 5-40 and with one temperature sensor TRG 5-6x (MIN or MAX) The control unit TRS 5-40 is also available with two actual value outputs 4 - 20 mA. The equipment combinations can be used for controlling or monitoring temperatures in steam boilers and (pressurised) hot water installations to TRD and EN 12952 and EN 12953.Function The control unit TRS 5-40 evaluates the data telegram coming from the temperature transmitter TRV 5-40 at regular intervals. This data telegram contains: ■ Actual value and ajdusted switchpoint for measuring channel 1, ■ Actual value and ajdusted switchpoint for measuring channel 2, ■ Temperature in the housing of the temperature transmitter. In addition, the following error messages are also included in the data telegram: ■ Malfunction in the temperature sensor (sensor damaged, short circuit), ■ Temperature in the housing of the temperature transmitter too high, ■ Communication error. The output relays 1 – 4 are assigned to the measuring channels 1 and 2 as follows: ■ Measuring channel 1: Output relay 1 ■ Measuring channel 2: Output relays 2, 3 and 4. To activate or de-activate the measuring channels and to set the functions use the code switch or the operating & display unit URB 2. Use the operating & display unit URB 2 to set the MIN / MAX temperature switchpoints for the temperature control as well as to establish the actual value outputs. If there is an error message relay(s) 1 and/or 4 will be de-energized.
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