MVS-201Programming

TIMER OPERATING MODES

The MVS-201 sensor has three different timer applications selectable by programming the sensor. Each operating mode differs by the timing function of the sensor and type of application. The factory setting is OP1. To change the factory set OP1 timer mode, press "Mode" key one time ("1" displayed). Use arrow "up" or "down" keys to select a different timer mode (OP2 or OP3).

TIMER MODE OP1 – "Air Conservation / Vacuum Valve Timer"

This Vacuum valve control with the use of timing features conserves air consumption via the vacuum generator non-return check valve and sensor hysteresis function. Vacuum time (t1) can be used to control the vacuum valve for a specific length of time (0.0-9.9 sec.) after output 1 vacuum level is reached. The vacuum timing function (t1) will remove the signal from the sensor to the vacuum valve allowing the generator check valve system to conserve air consumption and vacuum. The vacuum valve will re-open for the same length of time (t1) when the pressure level drops to the hysteresis setting (h-v). The operation will continue until the input signal is stopped. Optional delay timer between vacuum / blow-off (t2) and blow-off (bt) timer is available. After selecting OP1, set bt, t1, and t2 values by using arrow "UP" and "DOWN" keys. To bypass any of these timing function operations, simply enter 0.00 seconds and the sensor will automatically proceed to the next function.

TIMER MODE OP2 – "Vacuum Valve Timer"

This mode is ideal for use with CONVUM generators without check valves. Vacuum timer (t1) can be used to control the vacuum for a specific length of time (0.00 – 9.9sec.) after output 1 is reached. Optional delay timer between vacuum / blow-off (t2) and blow-off (bt) timer is available. After selecting OP2, set bt, t1, and t2 values by using arrow "UP" and "DOWN" keys. To bypass any of these timing function operations, simply enter 0.00 seconds and the sensor will automatically proceed to the next function.

OP3 – "Signal Controlled Vacuum"

The vacuum timer option (t1) is omitted and the PLC controls the input signal time for the vacuum operation. The delay timer between vacuum / blow-off (t2) and the blow-off (bt) timers are still available. After selecting OP3, set bt and t2 values by using arrow "UP" and "DOWN" keys. To bypass any of these timing function operations, simply enter 0.00 seconds and the sensor will automatically proceed to the next function.

SETTING SWITCH OUTPUT

          Select switch output values by pressing the "Mode" key two times ("2" displayed). Change switch output value "H-v" by using the arrow "UP" or "DOWN" keys. Press mode key to enter. Change hysteresis value "h-v" by using the arrow "UP" or "DOWN" keys. Press mode key to enter. Change vacuum release switch output value "H-d" by using arrow "UP" or "DOWN" keys. Press mode to enter. Change hysteresis value "h-d" by using arrow "UP" or "DOWN" keys. Press the mode key to enter and store this information.

PROGRAMMING OUTPUT MODES AND UNIT OF MEASURES

          Press the mode and arrow "UP" keys simultaneously to select vacuum switch output mode "OU1" setting. Select N.O. or N.C. mode by using the arrow "UP" or "DOWN" keys. Press mode key to enter. Select vacuum valve operating mode "OUV" N.O. or N.C. by using the arrow "UP" or "DOWN" keys. Press the mode key to enter. Select blow-off release switch output mode "oud" by using the arrow "UP" or "DOWN" keys. Press mode key to enter. Select "High" input or "Low" input signal "Ed9" by using the arrow "UP" or "DOWN" keys. Press mode key to enter. Select units of measure by using the arrow "UP" or "DOWN" keys. Press the mode key to enter and store this information.

OPTIONAL FEATURES

          Additional features of the MVS-201 can be accessed by pressing the mode key three times ("3" displayed).

Screen Saver Function

          Screen Saver Function (SaV) appears on the display. This reduces current consumption by 20mA and will activate after 10 seconds. Select "ON" or "OFF" by using arrow "up" or "down" keys. Press the Mode key to enter and default to peak value level.

Peak Value Level

          Peak Value Level (P-V) then appears on the display. The sensor records this value for preventative maintenance issues; like wear of cups, clogging filters, or other components. If this value is not reached the sensor will display an error message (ALP) indicating leaks or wear in the system. Select "ON" or "OFF" by pressing arrow "UP" or "DOWN" keys. If activated, select PV value by using arrow "UP" or "DOWN" keys. This value is always greater than or equal to H-V. Press the Mode key to enter and default to vacuum response level.

Vacuum Level Response Time

          Vacuum Level Response time (V+) then appears on the display. The sensor records the time (sec) to reach output 1. This function detects the wear of the system components or low supply pressure. An error message (ALV) will be displayed, indicating PV is not being reached within the programmed time. Select "ON" or "OFF" by using the arrow "UP" or "DOWN" keys. If activated, select V+ value (sec) by using arrow "UP" or "DOWN" keys. If this error message is displayed, check inlet air pressure, filters, silencers, or pads in the system. Press the Mode key to enter and default to Blow-off time.

Blow-Off Time

          Blow-off time (dt) then appears on the display. The sensor records this time (sec) to complete blow-off cycle and will display an error message (ALD) indicating dt is not reacting within the acceptable time (sec) set by the user. Select "ON" or "OFF" by using the arrow "UP" or "DOWN" keys. If activated, select dt value (sec) by using arrow "UP" or "DOWN" keys. Press mode key to enter and store all of this information.