E3
 z I/O isolation
Items surrounded by solid lines are insulated from other signals.
Availability of input or output is based on a model number.
Power supply
Internal
Circuit
Control output 1
Control output 2
PV input
Current Transformer input 1
Current Transformer input 2
Loader communication
Auxiliary output
Digital input 1
Digital input 2
Digital input 3
Digital input 4
RS-485 Communication
Event output 1*
Event output 2*
Event output 3
*  In case of independent contact, the part between the event 
output 1 and the event output 2 is isolated.
KEY OPERATION AND SETTING
The following shows the flow of key operation:
There are the standard type and special type in the data setup method.
Here, the method is explained in the standard type.
Operation display Bank selection display Bank setup display
OFF
OFF
mode
display
enter
para
man
ev1
ev2
ev3
ot1
ot2
sp
out
pv
SDC26
The mode indicators are lit sequentially form 
the left during a period of 5 to 6 sec after the 
power has been turned ON while both the 
upper display and lower display are OFF. 
When all mode indicators have been lit, the 
display is changed to the operation display.
The display and setup status shown above are examples for explanation. Therefore, 
some displays or settings are not shown actually according to the model and/or setup 
contents. After the setup bank  is selected in the Bank selection display, C0 1 is shown in 
the Bank setup display.
Display when the power is turned ON.
PV range type setup
Temperature unit setup
Mode bank selection
SP bank selection
Other display and setup
 (Operate the 
[display] key repeatedly.)
PV/SP display
display
key.Press the
display
key.Press the
display
key.Press the
MV display
para
key.Press the
key.Press the
para
key.Press the
key.Press the
para
key.Press the
key.Press the
para
key.Press the
key.Press the
para
key.Press the
key.Press the
para
key.Press the
key.Press the
Other banks
(Operate the [para], [   ]
and [   ] keys repeatedly.)
Other setup
(Operate the [para], [   ]
and [   ] keys repeatedly.)
No key operation for 3 minutes 
or more.
mode
Press the  or key.
display
No key operation for
3 minutes or more.
enter
Press the
  or
 key.
Keep the
 key 
pressed 
for 2 sec. 
or longer.
para
mode
Press the  or key.
display
Keep the
 key 
pressed 
for 2 sec. 
or longer.
para
 z Setting example of the PV range type
If the mode bank (MOdE) is selected, use the [ ][ ]keys to move to 
the setup bank (StUP), and then press the [enter]key. Next, press 
the [
][ ]keys as necessary to display C01 on the upper display. 
Move the digit or increase/decrease the numeric value by pressing 
the [<][
][ ]keys. When the [enter]key is pressed at the desired 
numeric value, the flashing will stop and the data will be set.
 z Setting example of the SP1
If the mode bank (MOdE) is selected, use the [ ][ ]keys to move to 
the setup bank (SP), and then press the [enter]key. Next, press the 
[
][ ]keys as necessary to display SP-1 on the upper display.
When the [enter]key is pressed, the numerical value on the lower 
display will start to flash. Move the digit or increase/decrease 
the numeric value by pressing the [<][
][ ]keys. When the 
[enter]key is pressed at the desired numeric value, the flashing 
will stop and the data will be set.
For details of the handling and setting methods, refer to the following 
user’s manual:
 Single Loop Controller SDC25/26 User’s Manual “Installation & 
Configurations” CP-SP-1149E or SDC25/26 Quick Reference Guide 
CP-SP-1217E.
PV RANGE TABLE
C0 1�
set 
value
Input 
type
Range
1 K
−200 to +1200°C
−300 to +2200°F
2 K
0 to 1200°C
0 to 2200°F
3 K
0.0 to 800.0°C
0 to 1500°F
4 K
0.0 to 600.0°C
0 to 1100°F
5 K
0.0 to 400.0°C
0 to 700°F
6 K
−200.0 to +400.0°C
−300 to +700°F
7 K
−200.0 to +200.0°C
−300 to +400°F
8 J
0 to 1200°C
0 to 2200°F
9 J
0.0 to 800.0°C
0 to 1500°F
10 J
0.0 to 600.0°C
0 to 1100°F
11 J
−200.0 to +400.0°C
−300 to +700°F
12 E
0.0 to 800.0°C
0 to 1500°F
13 E
0.0 to 600.0°C
0 to 1100°F
14 T
−200.0 to +400.0°C
−300 to +700°F
15 R
0 to 1600°C
0 to 3000°F
16 S
0 to 1600°C
0 to 3000°F
17
B
0 to 1800°C
0 to 3300°F
18
N
0 to 1300°C
0 to 2300°F
19 PLII
0 to 1300°C
0 to 2300°F
20
Wre5-26
0 to 1400°C
0 to 2400°F
21
Wre5-26
0 to 2300°C
0 to 4200°F
22
Ni-NiMo
0 to 1300°C
0 to 2300°F
23
PR40-20
0 to 1900°C
0 to 3400°F
24 DIN U
−200.0 to +400.0°C
−300 to +700°F
25 DIN L
−100.0 to +800.0°C
−150 to +1500°F
26
Gold iron 
chromel
0.0K to 360.0K 0 to 360K
 Handling Precautions
• 
The accuracy varies according to 
the range.
• 
The accuracy of the B thermo-
couple is ±4.0%FS for a range of 
260°C or less, ±0.4%FS for 260 to 
800°C. The PV values under 20°C 
are not shown. 
The accuracy of the No.23(sensor 
type PR40-20) is ±2.5%FS for 0 to 
300°C, and ±1.5%FS for 300 to 
800°C, ±0.5%FS for 800 to 1900°C. 
The accuracy of the No.26 (sensor type gold iron chromel) is ±2.0K. 
The accuracy of the No.19 (sensor type PLII) in the range of 0 to 32°F does 
not meet the indication accuracy.
• 
The ranges with a decimal point show figures under decimal point.
• 
Make sure to set the correct number in setup display C0 1, according to 
the type and range of the sensor used. If the setting is wrong, problems 
such as large temperature errors in the output may occur.
ALARM CODE TABLE
This table shows the alarm display and measures for the abnormal operation 
of this controller.
Alarm 
code
Failure name Cause Corrective action
AL0 1
PV input failure 
(over range)
Sensor line break, 
incorrect wiring, incorrect 
PV range type setting
Checking wiring or reset 
PVrange type.
AL02
PV input failure 
(under range)
AL03
CJ failure Terminal temperature is 
faulty (thermocouple).
Checking the ambient 
temperature.
PV input failure Sensor line break, 
incorrect wiring (RTD)
Checking wiring.
AL 1 1
CT input failure 
(over range) 
(CT input 1 or 2, or both)
A current exceeding the 
upper limit of the display 
range was measured. 
The number of CT turns or 
the number of CT power 
wire loops is incorrectly 
set, or wiring is incorrect.
Use a CT with the correct 
number of turns for the 
display range, reset the 
number of CT turns, reset 
the number of CT power 
wire loops, and/or check 
the wiring.
AL70
A/D conversion failure Defective A/D converter Replace unit.
AL95
Parameter failure Power turned OFF during 
fixing data
Data corrupted due to 
noise, etc.
Re-start the system.
Reset data or replace unit. 
(AL95/97: setting data, 
AL96/98: tuning data)
AL96
Adjustment data failure
AL97
Parameter failure 
(RAMarea)
Data corrupted due to 
noise, etc.
AL98
Adjustment data failure 
(RAMarea)
AL99
ROM failure ROM (memory) error Re-start the system.
Replace unit.
C0 1�
set value
Input type Range
81 0 to 10mV The scaling and 
the decimal point 
position can be 
changed variably 
in a range of 
−
1999 
to +9999.
82
−
10 to +10mV
83 0 to 100mV
84 0 to 1V
86 1 to 5V
87 0 to 5V
88 0 to 10V
89 0 to 20mA
90 4 to 20mA
C0 1�
set 
value
Input 
type
Range
41 Pt100
−200.0 to +500.0°C −300 to +900°F
42 JPt100
−200.0 to +500.0°C −300 to +900°F
43 Pt100
−200.0 to +200.0°C −300 to +400°F
44 JPt100
−200.0 to +200.0°C −300 to +400°F
45 Pt100
−100.0 to +300.0°C −150 to +500°F
46 JPt100
−100.0 to +300.0°C −150 to +500°F
47 Pt100
−100.0 to +200.0°C −150 to +400°F
48 JPt100
−100.0 to +200.0°C −150 to +400°F
49 Pt100
−100.0 to +150.0°C −150 to +300°F
50 JPt100
−100.0 to +150.0°C −150 to +300°F
51 Pt100
−50.0 to +200.0°C −50 to +400°F
52 JPt100
−50.0 to +200.0°C −50 to +400°F
53 Pt100
−50.0 to +100.0°C −50 to +200°F
54 JPt100
−50.0 to +100.0°C −50 to +200°F
55 Pt100
−60.0 to +40.0°C −60 to +100°F
56 JPt100
−60.0 to +40.0°C −60 to +100°F
57 Pt100
−40.0 to +60.0°C −40 to +140°F
58 JPt100
−40.0 to +60.0°C −40 to +140°F
59 Pt100
−10.00 to +60.00°C −10 to +140°F
60 JPt100
−10.00 to +60.00°C −10 to +140°F
61 Pt100 0.0 to 100.0°C 0 to 200°F
62 JPt100 0.0 to 100.0°C 0 to 200°F
63 Pt100 0.0 to 200.0°C 0 to 400°F
64 JPt100 0.0 to 200.0°C 0 to 400°F
65 Pt100 0.0 to 300.0°C 0 to 500°F
66 JPt100 0.0 to 300.0°C 0 to 500°F
67 Pt100 0.0 to 500.0°C 0 to 900°F
68 JPt100 0.0 to 500.0°C 0 to 900°F