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Function Blocks
STG Stage Function Block
Revision 11
HC900 Hybrid Control Designer Function Block Reference Guide
369
2/07
Table 109 STG Stage Tabs parameters
Properties Group
Parameter
Index #
Parameter Description
Value or Selection
Label
N/A
Unique name for each of the 4
internal stage functions
8 Characters
Settings
Type
N/A
See “Stage Types” for definitions
and
H
Table 108 for associated
parameters
Pressure/Flow
Pump Down
Pump UP
User Configured
Default =
Pressure/Flow
Interlocking
N/A
When set to ON, the current stage
is interlocked to the
previous
stage
ON
= Interlock
OFF
= No Interlock
Default = OFF
N/A
When set to ON, the current stage
is interlocked to the
next
stage
ON
= Interlock
OFF
= No Interlock
Default = OFF
PV
N/A
Defines PV1 or PV2 as the source
for the comparison to SP ON.
See
H
Table 108 for
defaults.
SP
12 - 15
Setpoint used with ON comparator
No range limits
Can be changed from
an operator interface
Compare
Type
N/A
Comparison type operator
between PV ON and SP ON.
See
H
Table 108 for
defaults.
On Compare
Latch Delay
28 - 31
Delay prior to latching the output
ON
Range:
0 – 9999 seconds
PV
N/A
Defines PV1 or PV2 as the source
for the comparison to SP OFF.
See
H
Table 108 for
defaults.
SP
16 - 19
Setpoint used with OFF
comparator
No range limits
Can be changed from
an operator interface
Compare
Type
N/A
Comparison type operator
between PV OFF and SP OFF.
See
H
Table 108 for
defaults.
Off Compare
Latch Delay
32 - 35
Delay prior to unlatching the
output OFF
Range:
0 – 9999 seconds