Weidmuller PTX800A - Configurable counter and totalizer Manual do Utilizador descarregar pdf (Página 33)

Alarm action

High alarms are active above the setpoint and low alarms are active

below the setpoint. Total alarms are always ‘high’ type, so this setting

is not shown.

Deadband

This parameter sets the “hysteresis” for an alarm channel; the alarm

will clear above or below the setpoint to prevent chatter when the

rate level passes the setpoint. The minimum deadband is one display

count. Total alarms do not need a deadband setting.

arm output energisation options

There are many applications where it is important to raise an alarm

if the instrument power supply is cut off. Normally energised coil

operation allows for this application.

arm timer delays

Sets the minimum time that an alarm condition must be present to be

recognised.

tpoint security

You can change the setpoints from the front panel. If you want to

disable this feature, switch on the setpoint security.

arm reset sequence

Alarms normally reset automatically when a trip condition has passed.

Manual reset requires the operator to press the appropriate key before

the alarm will clear. The alarm status LED flashes until the alarm is

acknowledged and then remains on until the trip condition is gone.

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 47 48

Sem comentários

Weidmuller PTX800A - Configurable counter and totalizer Manual do Utilizador Página 33