Delta Electronics DTB4896 Spezifikationen PDF herunterladen (Seite 4)

Input Sensor Type Register Value Display Range

Thermocouple R type 5

0 ~ 1,700°C

Thermocouple N type 4

-200 ~ 1,300°C

Thermocouple E type 3

0 ~ 600°C

Thermocouple T type 2

-200 ~ 400°C

Thermocouple J type 1

-100 ~ 1,200°C

Thermocouple K type 0

-200 ~ 1,300°C

Note 1: The current input is built-in with a 249Ω precision resistor. See “How to Set up Current Input” section.

Note 2: The default setting is Pt100 input.

Note 3: To display the decimal point, you have to set up the parameter

(in the operation mode). The decimal point display is available for all modes

except for thermocouple B, R, and S type.

Note 4: The range for analog input is -999 ~ 9,999. Take 0 ~ 20mA for example, -999 refers to 0mA input and 9,999 refers to 20mA input. If we change the

range into 0 ~ 2,000, 0 will thus refer to 0mA input and 2,000 refers to 20mA input (1 display scale = 0.01mA).

 Alarm Output

DTV offers 2 groups of alarm outputs and 17 modes for each group under the initial setting mode. When the PV exceeds or falls below SV, the alarm output

will be enabled. See the table below for the 17 alarm output modes.

Mode Alarm Type Alarm Output Operation

No alarm

Off

Alarm output is enabled when the temperature reaches upper and lower limits.

Alarm will be enabled when the PV exceeds SV + AL-H or falls below SV - AL-L.

OFF

AL-L SV AL-H

Alarm output will be enabled when the temperature reaches the upper limit.

Alarm will be enabled when the PV exceeds SV + AL-H.

OFF

AL-H

Alarm output is enabled when the temperature reaches the lower limit.

Alarm will be enabled when the PV falls below SV – AL-L.

OFF

AL-L

4 Alarm output will be enabled when the PV is between SV + AL-H and SV – AL-L.

OFF

AL-L SV

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the upper and lower limits.

Alarm will be enabled when the PV exceeds AL-H or falls below AL-L.

OFF

AL-L

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the upper limit.

Alarm will be enabled when the PV exceeds AL-H.

OFF

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the lower limit.

Alarm will be enabled when the PV falls below AL-L.

OFF

AL-

Standby upper/lower limit alarm: Alarm will be enabled when the PV reaches SV and exceeds SV + AL-H or

falls below SV – AL-L.

OFF

AL-L

AL-H

9 Upper limit standby alarm: Alarm will be enabled when the PV reaches SV and exceeds SV + AL-H.

OFF

SV AL-H

10 Lower limit standby alarm: Alarm will be enabled when the PV reaches SV and falls below SV – AL-L.

OFF

AL-L SV

Upper limit hysteresis alarm: Alarm will be enabled when the PV exceeds SV + AL-H. Alarm will be disabled

when the PV falls below SV + AL-L.

OFF

AL-L

AL-H

Lower limit hysteresis alarm: Alarm will be enabled when the PV falls below SV – AL-H. Alarm will be

disabled when the PV exceeds SV – AL-L.

OFF

AL-L

AL-H

14 Programmable STOP: Alarm will be enabled when the program is in STOP status.

15 Programmable RAMP UP: Alarm will be enabled when the program is in RAMP UP status.

16 Programmable RAMP DOWN: Alarm will be enabled when the program is in RAMP DOWN status.

17 Programmable SOAK: Alarm will be enabled when the program is in SOAK status.

18 Programmable RUN: Alarm will be enabled when the program is in RUN status.

Note: AL-H and AL-L include AL1H, AL2H and AL1L, AL2L. There is no mode 13 (reserved for CT function).

 PID Programmable Control

Functions and Parameter Setting:

The PID programmable control includes 8 patterns (Pattern 0 ~ 7). Each pattern contains 8 steps (Step 0 ~ 7) and parameters: link pattern, cycle and the

number of steps.

Start Pattern

: This parameter can be set in the operation mode. The user can set up which pattern is the start pattern for the programmable control.

This function is only available when the program is in STOP status.

Step: Includes the settings of the two parameters, set point X and execution time T, indicating that the set point (SV) has to rise to temperature X after the

period of execution time T. If the result of the set point X is the same as that of the previous setting, the process is called Soak; otherwise, it is called Ramp.

Therefore, the programmable control is also known as Ramp/Soak control.

The default setting of the first step program is Soak control. The temperature will first rise to the set point X and remain at X. The total execution time is T.

Link Pattern: For example, if the parameter

is set as 2, it refers to the execution of pattern 2 will follow the execution of pattern 0. If the link pattern

is set as

, it refers to the program will end after the execution of the pattern is completed and the temperature will remain at the SV for the last step.

Cycle: The additional number of cycles for a pattern. For example, if the parameter

is set as 2, it refers to pattern 4 has to execute twice

additionally, totaling the executions to 3 times including the original one.