Eurotherm 3116 PID User's Guide download pdf (Page 58)

3100/3200 Series

56 Part No HA028651 Issue 3.0 Mar-06

OP.LO

OUTPUT LOW

Adjust to limit the maximum cooling

power applied to the process or to

apply a minimum heating power

100.0%

0.0 (heat

only)

-100

(cool)

MTR.T

MOTOR TRAVEL TIME

Set this value to the time that it takes

for the motor to travel from its fully

closed to its fully open position.

0.0 to 999.9 seconds

Note: In motorised valve control only the PB

and TI parameters are active. The TD

parameter has no effect on the control.

0.0 L3

D.BAND

CHANNEL 2 DEAD BAND

Period when no output is demanded

from either channel 1 or channel 2

Adjust, for example, to increase the

period when no heating or cooling

power is applied

Off or 0.1 to 100.0% of the cooling

proportional band

OFF

HYST.H

HEATING HYSTERESIS -199.9 to 200.0 display units 1

HYST.C

COOLING HYSTERESIS -199.9 to 200.0 display units 1

On/off

only

SAFE

SAFE OUTPUT POWER

To set the output level in a sensor

break (open circuit) condition

-100.0 to 100.0% limited by OP.HI and OP.LO 0.0% L3

none

Transfer between Auto/Manual/Auto

is bumpless

SteP

Transfer from Auto to Manual, the

output goes to a pre-set value (F.OP)

F. M O D

FORCED MANUAL OUTPUT MODE

Selects how the loop behaves on

transfer from Auto to Manual.

Transfer from Manual to Auto is

always bumpless.

Last

Transfer from Auto to Manual, the

output goes to the previously set

manual value

none

Lin

Linear

OIL

Oil cooling

H20

Water cooling

C ool. t

NON-LINEAR COOLING TYPE

This selects an algorithm most suited

to the type of cooling. Typically used

in extruders.

Fan

Forced air cooling

As order

code

Conf

F. O P

FORCED OUTPUT

To pre-set a value for the Manual

output when F.MOD = STEP

-100.0 to 100.0% limited by OP.HI and OP.LO 0.0 L3

Auto

To select automatic operation

Man

To select manual operation

A-M

LOOP MODE – AUTO MANUAL OFF

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Eurotherm 3116 PID User's Guide Page 58

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