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•Communication address:Machine numbers are set in a range
from 0 to 99.
• Communication rate: 1200, 2400, 4800 and 9600 bps.
•Communication delay: To be set in a range from 0 to 255
(Setting possible only in the case of
RS-485.)
•Communication
distance: RS-422A maximum 1200m
(depending on conditions)
RS-485 maximum 500m
(depending on conditions)
•Transmission procedure:No procedure.
•Communication code: Conforming with ASCII codes.
•Control signal: Not used.
•Error detection: Vertical parity (even parity) checking.
BCC (block check character)
checking.
•Connectable number
of apparatuses: Possible to connect 100 units
maximum (including the host,
depending on conditions)
Alarm Output (Optimal)
•Number of alarm points:2 (AH and AL/HB, both for normal
open and common)
•Alarm Type: Selectable from the following 9
combinations.
(5 through 8 are selectable only when
apparatus has heater break alarm
function.)
0.Not assigned
1.Higher limit deviation value + lower limit deviation value
without inhibit action
2.Higher limit absolute value + lower limit absolute value
without inhibit action
3.Higher limit deviation value + lower limit deviation value
with inhibit action
4.Higher limit absolute value + lower limit absolute value with
inhibit action
5.Higher limit deviation value without inhibit action + heater
break
6.Higher limit absolute value without inhibit action + heater
break
7.Higher limit deviation value with inhibit action + heater
break
8.Higher limit absolute value with inhibit action + heater break
•Alarm setting range: Higher limit and lower limit absolute
value alarms: Within full scale of
measuring range
Deviation value: Higher limit: 0~2000 unit
Lower limit: -1999~0 unit
•Alarm action: On-Off action
•Alarm action hysteresis: Fixed to 0.2% of the measuring range
•Alarm output / rating: Contact 1a (common) / 240V AC 1.5A
(resistive load)
Heater Break Alarm (option)
This function can be added if the instrument has an alarm option
and the control output is the contact type or the SSR drive voltage
type.
•Alarm action: Heater amperage detected by
externally attached CT. (except 0~5V
DC input)
Alarm output On upon detection of
heater break while control output is
On.
•Current setting range: Off, 0.1~50.0A (Alarm action stops
when Off is set.) or, Off, 1~500A
(when 0~5 V DC for CT input is
selected)
• Setting resolution: 0.1A or 1A
•Amperage display: 0.0~55.0A or 0~550A
•Display accuracy: 5% FS (when sine wave is 50 Hz) or
1% FS (in case of 0~5 V DC input)
•Minimum time for
action confirmation: On time: 500 msec.
•Alarm holding: Selectable between Lock (holding)
and Real (no holding)
• Sampling cycle: 2 sec.
Set value Bias (option)
• Setting range: -1999~2000 unit
• Setting resolution: Same as display resolution
• Action input: Non-voltage contact (bias in action
when SB terminal is closed)
Others
•Data storage: By non-volatile memory (EEPROM)
•Isolation: Input, control output, communication
and alarm output circuits are isolated
from each other.
Input, set value bias and CT input
circuits are not isolated from each
other.
•Ambient conditions for use
Temperature/humidity
ranges: -10~50 °C and below 90%RH (on the
condition that there is no dew
condensation)
Height: 2000 m above sea level or lower
Installation category: II
Degree of pollution: 2
•Supply voltage/
frequency: 100-260V AC±10% (50 / 60 Hz)
•Power consumption: 12 VA max.
•Insulation resistance: Between input / output terminal and
power supply terminal:
500V DC 20 MΩminimum
Between input / output terminal and
protective conductor terminal:
500V DC 20 MΩminimum
•Dielectric strength: 1 min. at 2300V AC between input /
output terminal and power supply
terminal
1 min. at 1500V AC between power
supply terminal and protective
conductor terminal
•Protective structure: Only front panel has simple dust-proof
and drip-proof structure
•Material : PPO resin molding (equivalent to
UL94V-1)
•External dimensions
CN154, CN155:: H96 × W96 × D110
(panel depth: 100)mm
CN158, CN159:: H96 × W48 × D110
(panel depth: 100)mm
•Mounting: Push-in panel (one-touch mount)
•Panel thickness: 1.0~3.5 mm
•Panel cutout
CN154, CN155:: H92 × W92mm
CN158, CN159 : H92 × W45mm
•Weight
CN154, CN155: Approx. 400 g
CN158, CN159: Approx. 300 g
The contents of this manual are subject to change without notice.