Azbil SDC36 - Page 119

5-59
Chapter 5. DETAILED DESCRIPTION OF EACH FUNCTION

Operation
According to the operation type, direct/reverse, main setting, sub setting, hysteresis,
and other settings, the operation of the internal event becomes as follows:
[List of internal event operations]
Note
For details about unit (U), refer to the attached glossary.
Operation type Set value of
operation
type
Direct action

shows that the ON/OFF is changed at
this value.
 shows that the ON/OFF is changed at a
point that "1U" is added to this value.
Reverse action

shows that the ON/OFF is changed at
this value.
 shows that the ON/OFF is changed at a
point that "1U" is added to this value.
No event 0
Always OFF Always OFF
PV high limit 1
ONHYS
Main setting
PV
ON
HYS
Main setting
PV
PV low limit 2
Main setting
PV
ON
HYS
Main setting
PV
ONHYS
PV high/low limit 3
Main setting (*) Sub-setting (*
)
PV
ON
HYS
ON
HYS
Main setting (*) Sub-setting (*)
PV
ON
HYS
HYS
Deviation high
limit
4
ONHYS
SP + Main setting
PV
ON
HYS
SP + Main setting
PV
Deviation low limit 5
SP + Main setting
PV
ON
HYS
SP + Main setting
PV
ONHYS
Deviation high/
low limit
6
Main setting Sub-setting
PV
SP
ON
HYS
ON
HYS
ON
HYS
HYS
Main setting Sub-setting
PV
SP
Deviation high
limit
(Final SP reference)
7
ONHYS
SP + Main setting
PV
Same as the direct action of the deviation
high limit when the SP ramp is not used.
The difference is that the SP ramp does not
use the current SP, but it uses the final SP.
ON
HYS
SP + Main setting
PV
Same as the reverse action of the deviation
high limit when the SP ramp is not used.
The difference is that the SP ramp does not
use the current SP, but it uses the final SP.
Deviation low limit
(Final SP reference)
8
SP + Main setting
PV
ON
HYS
Same as the direct action of the deviation
low limit when the SP ramp is not used. The
difference is that the SP ramp does not use
the current SP, but it uses the final SP.
SP + Main setting
PV
ONHYS
Same as the reverse action of the deviation
low limit when the SP ramp is not used. The
difference is that the SP ramp does not use
the current SP, but it uses the final SP.
* If the setting is made so that the main setting is greater than the sub setting, the operation is performed with the main
setting swapped for the sub setting automatically.
(Continue on next page.)