77
Setting Control Specifications
Section 4-3
■
MV at Stop
This parameter sets the MV when control is stopped.
For heating/cooling control, the MV at Stop parameter applies to the cooling
side if the MV is negative and to the heating side if the MV is positive.
The default is 0.0, so an MV will not be output for either standard or heating/
cooling control with the default setting.
The order of priority is as follows:
Manual MV > MV at Stop > MV at PV
Error.
■
MV at PV Error
This parameter sets the MV when an input error or remote SP input error
occurs.
The order of priority is as follows:
Manual MV > MV at Stop > MV at PV
Error
.
■
MV Limiter
This function limits the MV output by applying upper and lower limits to the
calculated MV.
• The following MVs take priority over the MV limits.
• Manual MV
• MV at Stop
• MV at PV Error
• For heating/cooling control, upper and lower limits are set on overall heat-
ing/cooling control.
(They cannot be set separately for heating and cooling.)
Variable type
Parameter name
Setting range
Default
D5/95
MV at Stop (Channel)
−
5.0 to 105.0 (for standard control) %
−
105.0 to 105.0 (for heating/cooling control) %
0
Conditions for use
The control method must be set to 2-PID control.
Variable type Parameter name
Setting range
Default
D5/95
MV at PV Error
(Channel)
−
5.0 to 105.0 (for standard control) %
−
105.0 to 105.0 (for heating/cooling control) %
0
Conditions for use
The control method must be set to 2-PID control.
Output
100%
MV Lower Limit
MV Upper Limit
0%
Output Mode Selection = Standard control
Содержание EJ1 EtherCAT
Страница 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Страница 3: ...iv ...
Страница 19: ...xx ...
Страница 213: ...188 Detailed Description of Services Section 6 4 ...
Страница 227: ...202 Detailed Description of Services Section 7 5 ...
Страница 251: ...226 Determining the Error from the Current Situation for Heater Burnout Alarm Errors Section 8 8 ...
Страница 303: ...278 Index ...
Страница 305: ......