What is the alarm standby function?

Standby means that even when an alarm condition occurs it is ignored and the alarm stays off until the alarm condition ends. When the signal enters a non-alarm region, standby mode ends. Standby works in the following situation.

  • When powering on
  • When the SP changes
  • When the SP number changes (excluding remote) (i.e. when the SP value is changed)
  • When the alarm type changes
  • When standby is forced via communication
For example, you can use it when you don't want a PV lower limit alarm to occur when an oven starts up.

Related Products & Solutions

Advanced Application UT75A

The UT75A temperature controllers employ an easy-to-read, 14-segment large color LCD display, along with navigation keys, thus greatly increasing the monitoring and operating capabilities. A ladder sequence function is included as standard. The short depth of the controller helps save instrument panel space. The UT75A also support open networks such as Ethernet communication.

Mid-level UT55A/UT52A

The UT55A and UT52A temperature controllers employ an easy-to-read, 14-segment large color LCD display, along with navigation keys, thus greatly increasing the monitoring and operating capabilities. A ladder sequence function is included as standard. The short depth of the controller helps save instrument panel space. The UT55A/UT52A also support open networks such as Ethernet communication.

UM33A

The UM33A is a newly-released digital indicator with alarms provides up to 9 alarms outputs and input correction function (PV bias, Polygonal line approximation, polygonal line bias). Also, 24 VDC sensor power supply is available as an option.

UP35A/UP32A

The UP35A is a program controller with available 4 patterns and 40 segments (max.) and multi-channel contact I/O. It also includes a ladder sequence function. The UP32A is a compact program controller with up to 4 patterns and 40 segments available. It also includes a ladder sequence function.

UP55A

The UP55A is a newly-released 1/4 DIN sized program controller provides up to 30 program patterns, and simultaneous monitoring of 8 PV events, 16 time events, and 8 alarms. Also a ladder sequence function is included as standard.

UT32A-D

The UT32A-D is a compact digital indicating controller with selectable 2-loop control. It also includes a ladder sequence function.

UT35A/UT32A

The UT35A and UT32A temperature controllers employ an easy-to-read, 14-segment large color LCD display, along with navigation keys, thus greatly increasing the monitoring and operating capabilities. A ladder sequence function is included as standard. The short depth of the controller helps save instrument panel space. The UT35A/UT32A also support open networks such as Ethernet communication.

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