RKC INSTRUMENT Z-TIO-G, Инструкция по эксплуатации

Страница: 28 / 246

3. COMMUNICATION SETTINGS
3-6
IMS01T28-E4
3.4 Operating Precautions
Check the following items before starting operation, then turn on the power.
 Power ON
When first powered on, the unit starts with the operation mode set to “Control” and the RUN/STOP switch
set to STOP (control is stopped) (FAIL/RUN display lamp: lights green).
When the RUN/STOP switch is switched from STOP to RUN, operation begins. [Factory set value: STOP]
 Action at input error
This instrument provides such actions and outputs as described below when input error is detected.
 Action at input break
RTD input: Upscale
Current input: Upscale
 Action at input short circuit
RTD input: Upscale
 Output at input error
Setting range of Input error determination point:
Input scale low

(5 % of input span) to Input scale high

(5 % of input span)
This setting is also used for the determination of forced activation of the event at input error.
Action selection at input error:
・
Normal control (Factory set value)
・ Manipulated output value at input error
Action depends on the setting of Action at input error (high) or Action at input error (low).
Setting range of Manipulated output value at input error:

5.0 to

105.0 %
Actual output value is restricted by the output limiter.
Event output: Action depends on the setting of Force ON of Event action.
Refer to Functional explanation of the action at input error (P. 9-70, 9-62) for the action at the
time of input error.
 Checking the each parameter
The settings for the SV and all parameters should be appropriate for the controlled system.
There are parameters in Engineering setting which can not be changed when the controller is in RUN mode.
Change the RUN/STOP mode from RUN to STOP when a change for the parameters in Engineering setting
is necessary.
For details of the each parameter, refer to 9. COMMUNICATION DATA DESCRIPTION
(P. 9-1) .

Operation when power failure
A power failure of 4 ms or less will not affect the control action. When a power failure of more than 4 ms
occurs the instrument assumes that the power has been turned off. When the power returns, the operation of
instrument will be re-starts in accordance with the content selected by Hot/Cold start.
For details of Hot/Cold start, refer to Hot/Cold start (P. 9-63).
 Event hold action

The event action is activated when the power is turned on or when transferred from STOP mode to RUN mode.

The event re-hold action is activated when not only the SV is changed, but also the power is turned on or
when transferred from STOP mode to RUN mode.