Руководство по эксплуатации Delta MS300 (EN)

Devices and special tools/equipment N/A Test setup N/A 1 of 6 Product AMD Type/Series MS300 Appl. Note Nr. MS300 Pt100 Issued by DEN Author Arnoud de Bok Release Date March 8, 2017 Title PT100 FUNCTION FOR DELTA MS300

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CONTENTS: 1 PT100 .......................................................................................... 3 1.1 MS300 Measurement principle ................................................................................................... 3 1.1.1 Example ....................................................................................................................................................................... 3 1.2 Wiring ..........................................................................................................................................

3 1.3 Parameters ................................................................................................................................. 3 1.3.1 Analogue input ............................................................................................................................................................. 3 1.3.2 Analogue output ........................................................................................................................................................... 3 1.3.3 Level 1: (Lower) frequency command .......................................................................................................................... 3 1.3.4 Level 2:

Alarm .............................................................................................................................................................. 3 1.3.5 Action at alarm ............................................................................................................................................................. 4 1.3.6 Operation diagram ....................................................................................................................................................... 4 1.3.7 Parameter summary .....................................................................................................................................................

4 2 SETTING FLOWCHART .................................................................. 5 2 of 6

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1 PT100 Pt100 is a temperature dependent resistor, made of platinum (hence Pt) and a resistance of 100Ω  0.1Ω at 0°C (hence 100). The temperature coefficient is positive, so with increasing temperature, the resistance increases. (138.5Ω at 100°C, 177,0Ω at 200°C) Sometimes they are also called RTD (but not all RTDs are Pt100’s). The sensor values at different temperatures can be found on http://en.wikipedia.org/wiki/Resistance_thermometer See also page 6. 1.1 MS300 Measurement principle The AFM output, set to constant current, acts as a constant current source. This current goes through the Pt100 sensor. The voltage across the sensor is measured by an analogue input.

When the voltage becomes higher than a set value (at a certain temperature) the drive responds. 1.1.1 Example In this application note, AFM is used as the current source and AVI is used as the measuring input. 1.2 Wiring Connect the Pt100 sensor to AFM and ACM. Connect AFM to AVI. Pt100 1.3 Parameters 1.3.1 Analogue input We use AVI, so Pr03-00=11 (Pt100 input value). When ACI is used, set Pr03-01=11 but also Pr03-29=1 (0~10V) and set SW ACI to 0~10V on the control board. 1.3.2 Analogue output We use AFM, so Pr03-20=23 Constant voltage output. Set Pr03-31=1 for 0~20mA and also set SW AFM to 0~20mA. Then set Pr03-32=45.00% for 9mA. 1.3.3 Level 1:

(Lower) frequency command Set Pr06-56 for Level 1. Select at which temperature you want Level 1 to be. In the table acc. to the link in 1.1 you can find the resistance, let’s call it R Level1 .The voltage to set is then Pr06-56=R Level1 *9mA. When Level1 is reached, the drive will use Pr06-58 as frequency command value, so it’s best to set a low value in order to reduce the temperature. Pr06-58 Frequency will be used after Pr06-59 Delay. Note: Pr06-58=0 means Pt100 function is disabled. 1.3.4 Level 2: Alarm Set Pr06-57 for Level 2. Select at which temperature you want Level 2 to be. In the table acc.

to the link in 1.1 you can find the resistance, let’s call it R Level2 .The voltage to set is then Pr06-57=R Level2 *9mA. In general Level2>Level1 but e.g. if you don’t want to use Level1, you can set Level1>Level2. 3 of 6

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1.3.5 Action at alarm In Pr06-29 you can select what should happen when Level2 is reached and alarm [oH3] is shown. 1.3.6 Operation diagram Voltage Temperature Action acc. to Pr06-29 Level 2 Pr06-57 Level 1 Pr06-56 Time Actual frequency Frequency by Pr06-58 Delay by Pr06-59 1.3.7 Parameter summary For more details, please refer to the user manual.

4 of 6 Parameter Description Setting Range Default Pr03-00 AVI 11 0~17 1 Pr03-23 AFM 23 0~23 0 SW AFM Select AFM current or voltage 0~20mA 0~10V/0/4~20mA 0~10V Pr03-31 AFM output selection 1 0~2 0 Pr03-33 AFM Output Level 45% (=9mA) 0~100% 0% Pr06-29 PTC/Pt100 Alarm action See 1.3.5 0~3 0 Pr06-56 Pt100 Level1 See 1.3.3 0~10.000V 5.000V Pr06-57 Pt100 Level2 See 1.3.4 0~10.000V 7.000V Pr06-58 Pt100 Level1 Frequency See 1.3.3 0~600Hz 0Hz Pr06-59 Pt100 Delay See 1.3.3 0~6000s 60

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