Autonics TC4SP Handbuch - Seite 12
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Manual reset [ REST ]
When selecting P/PD control mode, certain temperature
difference exists even after PV reaches stable status
because heater's rising and falling time is inconsistent due
to thermal characteristics of controlled objects, such as
heat capacity, heater capacity. This temperature difference
is called offset and manual reset [ REST ] function is to set/
correct offset.
● When PV and SV are equal, reset value is 50.0%. After
con-trol is stable, PV is lower than SV, reset value is
over 50.0% or PV is higher than SV, reset value is below
50.0%.
● Manual reset [ REST ] by control result
SV
PV
※ Manual reset function is applicable only to P / PD control
mode.
Cool / Heat function [ O-FT ]
Generally there are two ways to control temperature, one
(Heat-function) is to heat when PV is getting down(Heater).
The other(Cool-function) is to cool when PV is getting
higher (Freezer).
These functions are operating oppositely when it is ON/
OFF control or proportional control. But in this case PID
time constant will be different due to PID time constant
will be decided according to control system when it is PID
control.
● Cool-function [ COOL ] and heat-function [ HEAT ] must
be set correctly according to the application, if set as
opposite function, it may cause a fire. (If set cool-function
[ COOL ] at heater, it will be maintained ON and it may
cause a fire.)
● Avoid changing heat-function to cool-function or cool-
function to heat-function when the unit is operating.
● It is impossible to operate both function at once in this
unit. Therefore, only one function should be selected
only.
SV High/Low limit [ L-SV / H-SV ]
● It sets SV high/low limit Limit range of using temperature
within temperature range for each sensor, user can set/
change set temperature(SV) within SV high limit [ H-SV ]
to SV low limit [ L-SV ]. (※ L-SV＞H-SV cannot be set.)
● When changing input type [ IN-T ], SV high limit [ H-SV ]
and SV low limit [ L-SV ] of using temperature will be
initialized as max./min.value of sensor temperature
range automatically.
Set below 50.0 as
reset value
Offset
Offset
Set over 50.0 as
reset value
Economical PID Control
Digital input key(
Press
+
keys for 3 sec. at the same time and it
operates RUN/STOP function[ STOP ] which is set at DI-K
or alarm clear function[ AlRE ].
■ RUN/STOP function [ STOP ]
It is allowed for users to select RUN / STOP in RUN mode.
● When it is required to stop control output temporarily (e.g.,
during maintenance work), use STOP command to stop
control output.(auxiliary output is normally provided as
setting values.)
● In case of STOP mode, STOP parameter and PV value is
flashing in turn on display part.
● When power is off in 'STOP' mode, 'STOP' mode will be
kept after Power is supplied again. (in order to return to
normal control operation, make 'STOP' mode OFF using
front keys.)
t
Press FUNC key
(t:Min. 3 sec.)
Run mode
ON
RUN
■ Alarm reset [ AlRE ]
A function to reset or initialize alarm output by force while
alarm output is ON. Applicable only to Alarm latch [ AM .B ]
and Alarm latch and stanby sequence[ AM .D ] mode.
※ If PV value is within alarm output range, this function is
not available.
Lock setting [ LOC ]
A function to prevent changing SV and parameters of each
setting group. Parameter setting values are still possible to
check while Lock mode is ON.
Display
Description
Lock off
OFF
Lock parameter group 2
LOC1
Lock parameter group 1, 2
LOC2
Lock parameter group 1, 2, SV setting
LOC3
※ OFF , LOC1 are available only for indicator(TC4 -N N).
Error
Display Description
Flashes if input sensor is disconnected
OPEN
or sensor is not connected.
Flashes if measured sensor input is
HHHH
higher than temperature range.
Flashes if measured sensor input is
LLLL
lower than temperature range.
+
3sec.) [ DI-K ]
t
t
STOP
RUN
Troubleshooting
Check input sensor
state.
When input is within
the rated temperature
range, this display
disappears.
H-65
(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