Extech Extech 48VFL11 Manual

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

INSTRUCTION MANUAL VFL Series PID Controllers

■FRONT P

－SHIFT KEY. Press the shift key for 5 seconds to execute Auto Tune process (Yes. 1 mode). To abort

ANEL DESCRIPTION：

PV－Process Value

SV－Setting Value

AT－Auto tuning LED

MA－Manual mode LED

A1－Alarm 1 LED

A2－Alarm 2 LED

C1－Control 1 LED

C2－Control 2 LED

－

SET KEY. Press once to access the next programmable parameter. Press and hold this key for 5

seconds to reset alarm timer.

－UP KEY. Press to increase the set point or parameter value.

－DOWN KEY. Press to decrease the set point or parameter value.

an Auto Tune process, press and hold the shift key for 5 seconds.

－

Press the SET and UP keys once to return the normal operation.

－LEVEL KEYS. Press and hold the SET & SHIFT keys simultaneously for 5 seconds to select the

programming level, and then press the SET key to enter the selected level.

---Press the UP & DOWN keys simultaneously for 5 seconds to access “LnLo” & “LnHi” parameters.

■PANEL CUTOUT：

Model A B C D E

a b c d

48VFL 48 48 6 100 45 45+0.5 45+0.5 60 48

96VFL 96 96 10 80 91 92+0.5 92+0.5 120 96

(Units: mm)

48VFL & 96VFL v1.2 07/13

■ WIRING DIAGRAM

■Wiring Precautions:

1. Before wiring, verify the controller label for correct model number and options.

2. For thermocouple input, use the appropriate compensation wire. And note the polarity of input signal.

avoid noise induction, keep input signal wires away from instrument power lines, load lines and power lines of

3.

To

other electrical equipmen

t.

48VFL & 96VFL v1.2 07/13

■ PROGRAMMING LEVEL PARAMETERS

■

lst. Prog. Level 2nd. Prog. Level 3rd. Prog. Level 4th Prog. Level 5th. Prog. Level

+

1. When 2nd Output (Cooling) is not selected, CPb、Cti、
Ctd、HYS2 and db parameters are not available.

2. When Pb

3. When CPb≠0.0，HYS2 will be skipped.

4. When Pb＝0.0，ti、td will be skipped.

5. When CPb＝0.0，Cti、Ctd will be skipped.

≠0.0

， HYS1 will be skipped.

48VFL & 96VFL v1.2 07/13

■PARAMETER DESCRIPTION：

LEVEL Selection

Press

key to select programming level. Then press key to enter this level.

LEVEL

keys for at least 5 seconds to access Soft Level. Use or

Description

SoFt Level

PID Level

Option Level

USER LEVEL

CODE DESCRIPTION RANGE Default

Set point value of control

Alarm 1 set point value/Timer set value while A1FU is set to

T.on or T. off, the unit can be HH.MM or MM.SS. It depends on

the “P.tnE” parameter.

Alarm 2 set point value/ Timer set value while A2FU is set to

T.on or T. off, the unit can be HH.MM or MM.SS. It depends on

the “P.tnE” parameter.

：Auto-tuning is disable

：Standard type auto-tuning.

Autotune PV is compared wit SV during auto tuning.

：Low PV type auto-tuning.

PV is compared with SV-10%FS during Auto-tuning.

LoLt － HiLt

-1999 － 9999/

00.00~99.59

-1999 － 9999/

00.00~99.59

500

10

10

no

Output percentage. Adjustable when “Hand” is set to “Yes”

：Disable the manual mode Manual control

：Enable the manual mode.

-100.0

－ 100.0

no

0.0

SOFT LEVEL

Code Description Range Default

Ramp rate for the process value to limit an abrupt Change
of process (℃/min)

Set point value of soft-start

Output percentage of soft-start

0 - 9999

（0.0 –

999.9）

LoLt － HiLt ０

0.0 - 100.0 100.0

0.0

PID LEVEL

CODE DESCRIPTION RANGE Default

Proportional band variable. Set to 0.0 for ON/OFF control mode

Integral time (Reset). This value is automatically calculated by

activating the Autotune function. If desired, the user can later

0.0-300.0% 10.0

0-3600sec 240

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

Proportional cycle time of output 1

Proportional band variable for secondary control output (cooling).

Set 0.0 for ON/OFF

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

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

0-100sec 15

0.0-300.0% 10.0

0-3600sec 240

0-900sec 60

Proportional cycle time of output 2

Hysteresis for ON/OFF control on output 1

Hysteresis for ON/OFF control on output 2

Hysteresis of alarm 1

Hysteresis of alarm 2

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)

Set point offset. This value will be added to SV to perform control.

It mainly used to eliminate offset error during Pb control

Process value offset. Permits the user to offset the PV indication

from the actual PV

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

0-100sec 15

0-2000(0.0-200.0) 1

0-2000(0.0-200.0) 1

0-2000 1

0-2000 1

-1000-1000
0

(-100.0-100.0)

-1000-1000
0

(-100.0-100.0)

-1000-2000
0

(-100.0-200.0)

0100

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

48VFL & 96VFL v1.2 07/13