48VFL & 96VFL v1.2 07/13
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 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 Pb 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
0101~0111 All parameters in all levels are unlocked
1000~1111
1000=0000,1001=0001,1010=0010,1011=0011,1100=0100
The only difference is that Output 2 is unlocked
0100
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