▍Specification
■ ML-D
▪ Specification
Display range |
±0.3% of Input range, ±1 Digit |
Insulation resistance |
Over 500Vd.c. 20 MΩ (Between power supply and input part) |
Dielectric strength |
750 V a.c. (Between power supply and input part) |
▪ Input
Thermocouple |
K, J, E, T, R, B, S, L, N, U, W, PL2 |
Each channel selected
by INP parameter
|
RTD |
Pt100 Ω, KPt100 Ω |
DC voltage |
0-100m V d.c., 1-5 V d.c., 0-10 V d.c. |
Sampling period |
50 ms |
Input display resolution |
Generally below input range's decimal point |
Input impedance |
Thermocouple and voltage power input : over 1 MΩ |
Allowable signal source resistance |
About 0.2 uV/Ω |
Allowable wiring resistance |
Thermoresistance (below 10Ω. but, the resistance of 3 wires should be the same) |
Allowable input voltage |
within -2~5 V d.c.(Thermocouple, RTD), within -5~12 V d.c. |
Input compensation |
±100% of Input range. |
Reference junction compensation accuracy |
±1.5 ℃ (0 ~ 50 ℃) |
Burn-Out Detection |
Up scale |
▪ Output
|
Control output
(ML-D)
|
RELAY |
1a contact |
250 V a.c. 3 A, 30 V d.c. 3 A |
SSR |
About 12Vd.c. or more (Resistive load min 600Ω).
About 25mA d.c when disconnection.
|
Time resolution: Control cycle 0.1% or 10ms whichever is bigger. |
SCR |
4-20mA d.c. (Load resistance: lower than 600Ω) |
Accuracy : ±0.1 % of FS (4-20mA d.c. range) |
▪ Control function
Control method |
ML-D2H |
PID (Heating/Cooling simultaneous control) / 2 DOF PID (Single control) / ON-OFF control |
ML-D4 |
2-DOF PID / ON-OFF control |
Control operation |
Selectable between reverse operation (heating) / Direct operation (cooling) (By DR parameter setting) |
Proportional band |
0 ~ 100 % of FS |
Integral time |
0 ~ 3,600 seconds |
Derivative time |
0 ~ 3,600 seconds |
Cycle time |
1 ~ 100 seconds |
ON/OFF control |
It is possible to set up when proportional band is 0 |
Manual reset |
It is possible to set up manual reset when integral time is 0 second |
Alarm setting range |
0 ~ 100% of input range (Absolute alarm), ±100 % of input range (Deviation alarm) |
Alarm hysteresis |
By EVHY parameter setting |
Alarm type |
By EVTY parameter setting (18 types) |
|
Heater Break
Alarm
|
ML-D2H |
▪ Applicable in ON/OFF control, time proportional control output
(Detection is not possible when output ON/OFF time is less than 0.2 seconds.)
▪ Measuring current: 1–5 A a.c. (resolution: 0.5Aa.c. ± 5 % of FS ± 1 Digit)
▪ CT model name for Heater break alarm: CT-50N
|
▪ RS232 Communication
Communication protocol |
RS-232 EIA standard |
Max. communication range |
15 m |
Communication speed |
9600 bps |
Start bit |
1 bit |
Data length |
8 bit |
Parity bit |
Even |
Stop bit |
1 bit |
Supported protocol |
PC-Link |
▪ RS485 Communication
Communication protocol |
RS-485 EIA standard / 2 wires half duplex |
Number of maximum connection |
31 units |
Max. communication range |
1200 m |
Communication process |
No process |
Communication speed |
9600, 19200, 38400, 57600, 76800 bps [Initial value : 9600] |
Start bit |
1 bit |
Data length |
7, 8 bits [Initial value : 8] |
Parity bit |
None, Odd, Even [Initial value : Even] |
Stop bit |
1, 2 bits [Initial value : 1] |
Response time |
Receiving processing time + (response time X 10 ms) |
Supported protocol |
PC-Link , PC-Link with SUM, Modbus ASCII/RTU [Initial value : PC-Link] |
▪ Power supply specification
Power voltage |
24 V d.c. |
Voltage regulation |
±10 % of power voltage. |
|
Consumption
voltage
|
Below 3 W |
ML-E |
Below 5 W |
ML-D4M, ML-D2HMM |
Below 7 W |
ML-D4S, ML-D4C, ML-D2HSM, ML-D2HSS |
Ambient temperature |
0 ~ 50 ℃ |
Ambient humidity |
35 ~ 85 % RH (But, not dew condensation) |
System requirements |
Not in a poisonous gas, not in a magnetic filed or in a place where dust is present. |
Storage temperature |
-25 ~ 65 ℃ |
Weight |
Approx. 220 (Excludes the packing box) |
■ ML-E
▪ Output
|
Contact output
(relay)
|
1a × 8 contact |
250 V a.c. 3 A, 30 V d.c. 3 A |
▪ Power supply specification
Power supply voltage |
24 V d.c. |
Voltage regulation |
±10 % of Power supply voltage |
Electric energy consumption |
Below 3 W |
Ambient temperature |
0 ~ 50 ℃ |
Ambient humidity |
35 ~ 85 % RH (But, not dew condensation) |
System requirements |
Not in a poisonous gas, Not in a magnetic field or in a place where a dust is occurred. |
Storage temperature |
-25 ~ 65 ℃ |
Weight |
Approx. 200 g (Excludes the packing box) |
|
