
49
B
ef
or
e staring
InstallationInstallation
Op
er
ation
Sp
ecifications
▶ RS232C Communication
Communication method
RS-232 EIA standard
Maximum communication
distance
15 m
Transmission speed
9600 bps
Start bit
1 bit
Data length
8 bit
Parity bit
Even
Stop bit
1 bit
Support protocol
PC-Link
▶ Control function
Control
method
ML-D2H
PID (heating/cooling concurrent control) / 2 DOF PIC (single control)
/ ON-OFF control
ML-D4
2 DOF PID (Auto tuning support) / ON-OFF control
Control run
Random selection of reverse run (heating) / forward run (cooling)
(DR parameter setting)
Proportional band
0 ~ 100 % of FS
Integral time
0 ~ 3,600 sec.
Differential time
0 ~ 3,600 sec.
Proportional cycle
About 25 ~ 30 seconds (relay control output),
2 ~ 4 seconds (voltage pulse (SSR) control output)
ON/OFF control
Set proportional band to “0”
Manual reset
Possible to use manual RESET setting 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 (19 types)
Heater
disconnection
alarm
ML-D2H
Possible to use in ON/OFF control, time proportional control output
(impossible to detect if output ON/OFF time is less than 0.2 second)
Measuring current: 1-5 A a.c. (resolving power: 0.5 A ± 5% of FS ±1 Digit)
Heater disconnection detection use (CT type) model name: CT-50N
Содержание ML-D2H
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