YOKOGAWA UTAdvanced UT55A, Руководство пользователя

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11-1
IM 05P01C31-01EN
Alarm
Functions
11
11.1 Setting Alarm Type
Description
The alarm-related parameters consist of the alarm type (type, stand-by action, energized/
de-energized, and latch function), PV velocity alarm time setpoint, alarm hysteresis,
alarm (On-/Off-) delay timer, and alarm setpoint.
In Cascade control, both of Loop 1 and Loop 2 have these parameters.
Alarm-related parameter Number of settings
Alarm type 8 (number of settings) x 2 (number of loops)
PV velocity alarm time setpoint 8 (number of settings) x 2 (number of loops)
Alarm hysteresis 8 (number of settings) x 2 (number of loops)
Alarm (on-/off-) delay timer 8 (number of settings) x 2 (number of loops)
Alarm setpoint 8 (number of settings) x 8 (number of groups) x 2 (number of loops)
► Alarm hysteresis: 11.3 Setting Hysteresis to Alarm Operation
► Alarm delay timer: 11.4 Delaying Alarm Output (Alarm Delay Timer)
► Alarm setpoint: 6.5 Setting Alarm Setpoint
Both of Loop-1 and Loop-2 have eight groups of alarms. The alarms are assigned to the
terminals for each control mode (parameter CTLM).
Factory default: Only four groups of alarm-related parameters are displayed.
► Terminal function: 17.4.7 Contact Output Wiring
Alarm output can be assigned to the unused control relay output or contact output.
► Control relay output: 11.5 Setting Alarm Output to Control Relay Terminal
► Contact output: 12.2.1 Setting Function of Contact Output
Energized/de-energized of alarm output can be changed.
► Energized/de-energized: 12.2.2 Changing Contact Type of Contact Output
To read the conditions of alarms, outputs, or latches via communication, see
Communication Interface User's Manual.
……
AL3 AL2 AL1
Alarm 1
(PV high limit)
* See “Appendix 1 Input and Output Table of Standard Model and Suffix Codes” for presence/absence of the terminals
DO11 to DO15, DO21 to DO25, and DO31 to DO35.
* OUT1 and OUT2 can be used for alarm output when the relay outputs are not used for control otuput.
* The above figure shows the case of single-loop control mode.
DO12 DO11 DO15
……
DO22 DO21 DO25
……
DO32 DO31 DO35
Alarm conditions Alarm conditions Alarm conditions Alarm conditions
Energized/de-energized Energized/de-energized Energized/de-energized Energized/de-energized
…… ……
……
Alarm 2
(PV low limit)
Alarm 3
(PV high limit)
OUT2 OUT1
Alarm conditions
Energized/de-energized
Alarm 4
(PV low limit)
No function
No function
No function Alarm 5 Alarm 8 No function
No function
No function
Alarm Function
Chapter 11 Alarm Functions