Vertex VT7226+ User Manual

6
better suit the application. When PB=0.0, this
parameter will be not available. When set to zero, Pb
& td ≠ 0 for PD control.
Derivative (Rate). This value is automatically
calculated by activating the Auto tune function. If
desired, the user can later adjust this parameter to
better suit the application. When PB=0.0, this
parameter will be not available. When set to zero, Pb
& td ≠ 0 for PI control.
0-900sec
60
Proportional cycle time of output 1.
0-100sec
15
Proportional band variable for secondary control
output (cooling). Set 0.0 for ON/OFF.
0.0-300.0%
10.0
Integral time for secondary control output. When
PB=0.0, this parameter will be not available. When set
to zero, Pb & td ≠ 0 for PD control.
0-3600sec
240
Derivative time for secondary control output. When
Pb=0.0, this parameter will be not available. When set
to zero, Pb & ti ≠ 0 for PI control.
0-900sec
60
Proportional cycle time of output 2.
0-100sec
15
Hysteresis for ON/OFF control on output 1.
0-2000
(0.0-200.0)
1
Hysteresis for ON/OFF control on output 2.
0-2000
(0.0-200.0)
1
Hysteresis of alarm 1.
0-2000
1
Hysteresis of alarm 2.
0-2000
1
Dead band value. This defines the area in which
output 1 and output 2 are both active (negative value)
or the area in which output 1 and output 2 are both
inactive (positive value).
-1000-1000
(-100.0-100.0)
0
Set point offset. This value will be added to SV to
perform control. It mainly used to eliminate offset error
during P control.
-1000-1000
(-100.0-100.0)
0
Process value offset. Permits the user to offset the PV
indication from the actual PV.
-1000-2000
(-100.0-200.0)
0
Parameter lock. This security feature locks out selected
levels or single parameters prohibiting tampering and
inadvertent programming changes.
0000
All parameters are locked
out.
0001
Only SP is adjustable
0010
Only USER level is
adjustable
0011
USER and PID levels are
adjustable.
0100
USER,PID,OPTI levels
are adjustable.
0101
USER,SOFT,PID,OPTI
levels are adjustable.
0101~0
111
All parameters in all
levels are opened.
1000~1
111
1000=0000,1001=0001,
1010=0010,1011=0011,1
100=0100
but Output 2 is opened.
0100

Vertex VT7226+ Specifications

General

Brand	Vertex
Model	VT7226+
Category	Controller
Language	English