H-83

(A)

Photo

electric

sensor

(B)

Fiber

optic

sensor

(C)

Door/Area

sensor

(D)

Proximity

sensor

(E)

Pressure

sensor

(F)

Rotary

encoder

(G)

Connector/

Socket

(H)

Temp.

controller

(I)

SSR/

Power

controller

(J)

Counter

(K)

Timer

(L)

Panel

meter

(M)

Tacho/

Speed/ Pulse

meter

(N)

Display

unit

(O)

Sensor

controller

(P)

Switching

mode power

supply

(Q)

Stepper

motor&

Driver&Controller

(R)

Graphic/

Logic

panel

(S)

Field

network

device

(T)

Software

(U)

Other

Dual PID Auto Tuning Control

Setting

value

(SV)

Decrease reset

Increase reset

Normal deviation

Normal deviation

Process

value(PV)

(Fig. 1)

SV

S

PV

t

PIdF

※ t : Reaching time

S : Overshoot

SV: Setting value

PV: Process value

(Fig. 2)

SV

PV

t

PIdS

※ t : Reaching time

SV: Setting value

PV: Process value

ON/OFF control

Manual reset [ REST]

Dual PID control

RS485 communication

Decimal point setting [ DOT]

ON/OFF control is called two position control because

the output turns on when PV falls lower than SV and the

output turns off when PV is higher than SV.

This control method is not only for controlling temperature,

but also it is basic control method for sequence control.

● If you set value P as )0 in parameter 1 group, ON/OFF

control will operate.

● There is a programmable temperature difference

between ON and OFF in ON/OFF control, if difference

is too small, then hunting(chattering) can occur.

● Temperature difference can be set in HYS mode of

parameter 1 group. Setting range is 1 to 100(or 0.1 to

100.0).

● HYS mode is displayed when P value is )0, but HYS will

not be displayed, and then jump if P value is not )0.

● This ON/OFF control should not be applied when

equipment(cooling compressor) to be controlled can be

damaged by frequent ON and OFF.

● Even if ON/OFF control is stable status, the hunting can

be occurred by setting value in HYS or capacity of the

heater or response characteristic of the equipment to

be controlled or installing position of the sensor. Please

consider above points to minimize the hunting when

designing the system.

Proportional control has deviation because rising time is

not same as falling time, even if the unit operates normally.

Manual reset function is used at proportional control mode

only.

● If set RESTfunction in parameter 1 group, the manual

reset will run.

● When PV and SV is equal, REST value is 50.0% and

when control is stable, if the temperature is lower than

SV, RESTvalue should be higher and on the other hand,

REST value should be smaller.

● REST setting method according to result of control.

When controlling temperature, two types of control

characteristic are available as below.

One is when you need to minimize the time which PV

reaches to SV as like(Fig. 1). The other is when you need

to minimize overshoot even though the reaching time(PV

to SV) is slow(Fig. 2).

● There are high-speed response type and low-speed

response type built in this unit. Therefore user can select

each function according to their application.

● You can select dual PID control function in parameter 2

group. It is selectable PIdFor PIdS in PIDT mode.

PIdF

(high-speed response type)

This mode is applied to machines or systems which

require high-speed response.

PIdS

(low-speed response type)

It is PID Slow, used to minimize overshoot even though

the response is slow. For control temperature of oil,

plating machine have a possibility of fire with overshoot,

PIdS

(limit over) should be used.

※Factory default setting is PIdS.

Please select mode according to control system.

It is used on the purpose that transmitting PV to an external

equipment, setting SV at the external equipment.

● It can be set at BPS, ADRS in second parameter 2 group.

●

Communication speed[ BPS] set range: 2400, 4800,

9600bps

● Start bit(1bit, fixed), Stop bit(1bit, fixed), Parity bit(none)

●

Communication address[ ADRS] set range: 1 to 99

Communication converters (sold separately)

SCM-38I(RS-232C to RS485 converter)

SCM-US48I(USB to RS485 converter)

SCM-WF48(Wi-Fi to RS485/USB communication

converter(available soon)

Decimal point is displayed as DOT in parameter 2 group when

the input is analog only.(0-10VDC, 1-5VDC, DC4-20mA)