Suffix code

[ML-D2H]
Model Code Description
ML-D 2 H Modular temperature controller
Channels 2     2 channels
function H   Heating & Cooling control (simultaneous)
HBA (Heater break alarm)
Output tpye MM OUT1(Heating) Relay output
OUT2(Cooling)
SM OUT1(Heating) SSR / SCR (4 - 20 mA d.c.) parameter selectable
OUT2(Cooling)) Relay output
SS OUT1(Heating) SSR / SCR (4 - 20 mA d.c.) parameter selectable
OUT2(Cooling)

[ ML-D4 ]
Model Code Description
ML-D Multi loop controller
Channels 4   4 Channel
Output type M Relay
S SSR (12 V d.c.)
C SCR (4 - 20 ㎃ d.c.)

[ ML-E ]
Model Description
ML-E Module type 8 events output unit

Specification

+ 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 – 100 mV, 1 - 5 V, 0 - 10 V
Sampling period 50 ms
Input display resolution Generally below input range's decimal point
Input impedance Thermocouple and voltage power input : over 1 MΩ
Admissible input resistance's impact 약 0.2 uV/Ω
Admissible input leading wire resistance Thermoresistance
(below 10Ω. but, the resistance of 3 wires should be the same)
Admissible input voltage within -2 - 5 V (Thermocouple, RTD), within -5 - 12 V (DC voltage)
Input correction ±100% of Input range.
Reference Junction Complementary Error ±1.5 ℃ (0 ~ 50 ℃)
Burn-Out Detection 105 % of FS (UP-SCALE)

+ Output
Control output RELAY 1a contact
250V AC 3A, 30 V DC 3A
SSR Limit to approximately 25mA when shorted more than about 12V
(load resistance: over 600Ω)
Time resolution: control period 0.1% or the high part among 10ms
SCR 4 - 20 mA DC (Load resistance : lower than 600Ω)
Precision : ±0.1 % of FS (4 - 20 mA range)

+ Quality
Display range ±0.3% of Input range, ±1 Digit
Insulation resistance Over 500 V DC 20 MΩ (For Power and input part)
Withstand voltage 750 V AC (For power and input part)

+ Control
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) (through DR parameter setting)
Proportional band 0 ~ 100 % of FS
Integral time 0 ~ 3,600 Seconds
Derivative time 0 ~ 3,600 Seconds
Cycle time 25 ~ 30 seconds (relay control output), 2 ~ 4 seconds (SSR control output)
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 Through EVHY parameter setting
Alarm type Through EVTY parameter setting (18 types)
Heater Break Alarm ML-D2H Applicable in ON/OFF control, time proportional control output
(Detection is possible when output ON/OFF time is less than 0.2 seconds.) Measuring current: 1 – 5 A AC (resolution: 0.5A ± 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
Number of maximum connection 31 units
Communication method 2 wires half duplex
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 3W ML-E
Below 5W ML-D4M, ML-D2HMM
Below 7W 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. 220g (Excludes the packing box)