Distributor of Omron Automation & Safety: Excellent Integrated System Limited
Datasheet of C200H-DSC01 - DATA SETTING CONSOLE
Contact us: [email protected] Website: www.integrated-circuit.com
54
Error Detection
When an error occurs in an input or in the Unit, details of the error are output to
the Data Setting Console and input relays (words n+8 and n+9).
Sensor Input Errors
The following table shows the Data Setting Console display and error contents.
Display
Error name
Output status after
error
Cause
Remedy
ser1
Loop 1 sensor error
Control output:
The transistor output or
voltage output turns OFF
or the current output falls
below 2 mA.
Alarm output:
The alarm is output
Reading is
+
10%FS out
of sensor measurement
range (i.e., 10%FS
below the lower limit or
10%FS above the upper
limit).
Broken or incorrect input
Check the sensor wiring.
Replace the sensor.
Replace the Unit.
Correctly set switch
SW203-4.
ser2
Loop 2 sensor error
The alarm is out ut
assuming the input is
+
10%FS.
Broken or incorrect in ut
wiring
Defective input sensor
Defective Unit
SW203-4 is OFF (Loop
2 enabled) but no sensor
connected to Loop 2
serr
Cold junction
compensating circuit
error
(C200H-TC00
)
Control output:
The transistor output or
voltage output turns OFF
or the current output falls
below 2 mA.
Abnormality in cold
junction compensating
circuit.
Replace the Unit.
Data Setting Console
When a sensor error occurs, one of the codes above and the detected tempera-
ture are displayed alternately.
If a Loop 1 sensor error
ser1
and a Loop 2 sensor error
ser2
occur simultaneously,
ser1
is displayed preferentially. Even if a sensor error is detected in one Loop, the
other Loop continues to operate normally. Control operation restarts automati-
cally five seconds after the cause of the error is corrected. If a cold junction com-
pensating circuit error occurs, reset the power supply.
The following bits are set when a sensor input error occurs.
Loop 1 sensor error
Wd. n+8, bit 14 = 1; Wd. n+9, bit 14 = 0
Loop 2 sensor error
Wd. n+8, bit 14 = 0; Wd. n+9, bit 14 = 1
Cold junction
compensating circuit error
Wd. n+8, bit 14 = 1; Wd. n+9, bit 14 = 1
CT Input Overflow
Display
Error name
Cause
Remedy
ct
ffff
CT input overflow
The detected heater
current exceeds 55.0 A.
Check the CT and
heater wiring.
The information is displayed as heater current monitor data. It cannot be
checked while other parameter data is being displayed. The display returns to
normal after the cause of the error is removed.
The following bits are set when a CT overflow error occurs.
Wd (n+8), bit 13 = 1
Loop 1 CT overflow
Wd (n+9), bit 13 = 1
Loop 2 CT overflow
Error Detection
Section 5
56 / 71
56 / 71
