Digital Controller
REX-C100/C400/C410/C700/C900
INSTRUCTION MANUAL
Thank you for purchasing the RKC instrument. In order to achieve maximum performance
and ensure proper operation of your new instrument, carefully read all the instructions
in this manual. Please place this manual in a convenient location for easy reference.
• An external protection device must be installed if failure of this
instrument could result in damage to the instrument, equipment or
injury to personnel.
• All wiring must be completed before power is turned on to prevent
electric shock, fire or damage to instrument and equipment.
• This instrument must be used in accordance with the specifications
to prevent fire or damage to instrument and equipment.
• This instrument is not intended for use in locations subject to
flammable or explosive gases.
• Do not touch high-voltage connections such as power supply
terminals, etc. to avoid electric shock.
• RKC is not responsible if this instrument is repaired, modified or
disassembled by other than factory-approved personnel.
Malfunction can occur and warranty is void under these conditions.
• This is a Class A instrument. In a domestic environment, this
instrument may cause radio interference, in which case the user
may be required to take adequate measures.
• This instrument is protected from electric shock by reinforced
insulation. Provide reinforced insulation between the wire for the
input signal and the wires for instrument power supply, source of
power and loads.
• Be sure to provide an appropriate surge control circuit respectively
for the following:
- If input/output or signal lines within the building are longer than 30
meters.
- If input/output or signal lines leave the building, regardless the
length.
• This instrument is designed for installation in an enclosed
instrumentation panel. All high-voltage connections such as power
supply terminals must be enclosed in the instrumentation panel to
avoid electric shock by operating personnel.
• All precautions described in this manual should be taken to avoid
damage to the instrument or equipment.
• All wiring must be in accordance with local codes and regulations.
• All wiring must be completed before power is turned on to prevent
electric shock, instrument failure, or incorrect action. The power
must be turned off before repairing work for input break and output
failure including replacement of sensor, contactor or SSR, and all
wiring must be completed before power is turned on again.
• To prevent instrument damage of failure, protect the power line and
the input/output lines from high currents with a protection device
such as fuse, circuit breaker, etc.
• Prevent metal fragments or lead wire scraps from falling inside
instrument case to avoid electric shock, fire or malfunction.
• Tighten each terminal screw to the specified torque found in the
manual to avoid electric shock, fire or malfunction.
• For proper operation of this instrument, provide adequate
ventilation for heat dispensation.
• Do not connect wires to unused terminals as this will interfere with
proper operation of the instrument.
• Turn off the power supply before cleaning the instrument.
• Do not use a volatile solvent such as paint thinner to clean the
instrument. Deformation or discoloration will occur. Use a soft, dry
cloth to remove stains from the instrument.
• To avoid damage to instrument display, do not rub with an abrasive
material or push front panel with a hard object.
• Do not connect modular connectors to telephone line.
WARNING
CAUTION
NOTICE
• This manual assumes that the reader has a fundamental knowledge
of the principles of electricity, process control, computer technology
and communications.
• The figures, diagrams and numeric values used in this manual are
only for purpose of illustration.
• RKC is not responsible for any damage or injury that is caused as a
result of using this instrument, instrument failure or indirect damage.
• Periodic maintenance is required for safe and proper operation of
this instrument. Some components have a limited service life, or
characteristics that change over time.
• Every effort has been made to ensure accuracy of all information
contained herein. RKC makes no warranty expressed or implied,
with respect to the accuracy of the information. The information in
this manual is subject to change without prior notice.
• No portion of this document may be reprinted, modified, copied,
transmitted, digitized, stored, processed or retrieved through any
mechanical, electronic, optical or other means without prior written
approval from RKC.
All Rights Reserved, Copyright 2004, RKC INSTRUMENT INC.
IMNZC21-E1
RKC INSTRUMENT INC.
®
1. PRODUCT CHECK
C100
(1) Control action
(2) Input type
-
(1) (2) (3) (4) (6) (7)
F: PID action with autotuning (Reverse action)
D: PID action with autotuning (Direct action)
W: Heat/cool PID action with autotuning (Water cooling
A : Heat/cool PID action with autotuning (Air cooling
*
(3) Range code
,
See “9. INPUT RANGE TABLE.”
(4) First control output [OUT1] (Heat-side)
M: Relay contact 8: Current (4 to 20 mA DC)
V: Voltage pulse
G: Trigger (for triac driving)
(5) Second control output [OUT2] (Cool-side)
No symbol: When control action is F or D. M: Relay contact
V: Voltage pulse 8: Current (4 to 20 mA DC)
(6) Alarm 1 [ALM1], (7) Alarm 2 [ALM2]
N: No alarm H: Process high alarm
A: Deviation high alarm J: Process low alarm
B: Deviation low alarm K: Process high alarm with hold action
C: Deviation high/low alarm L: Process low alarm with hold action
D: Band alarm P: Heater break alarm (CTL-6
E: Deviation high alarm S: Heater break alarm (CTL-12
with hold action R: Control loop break alarm 5
F: Deviation low alarm
with hold action
G: Deviation high/low alarm with hold action
1
C100 cannot be specified in Heat/cool PID action.
2
For the C100, when control output is trigger output for triac driving, only the
ALM1 is available.
3
For the C100, there is no second control output.
4
Heater break alarm cannot be specified in case of ALM1. Also, it isn’t possible
to specify when control output is current output.
5
As control loop break alarm, only either the ALM1 or ALM2 is selected.
Check that power supply voltage is also the same as that
specified when ordering.
Mounting brackets (C100/C400/C410/C700/C900): 2
Instruction manual (IMNZC21-E1): 1
C400
C410
-
C700
(1) (2) (3) (4) (5) (6) (7)
C900
1
)
1
)
2
3
*
)
4
4
)
<Accessories>
2. MOUNTING
2.1 Mounting Cautions
(1) This instrument is intended to be used under the following
environmental conditions. (IEC61010-1)
[OVERVOLTAGE CATEGORY II, POLLUTION DEGREE 2]
(2) Use this instrument within the following ambient temperature and
ambient humidity.
• Allowable ambient temperature: 0 to 50 °C
• Allowable ambient humidity: 45 to 85 % RH
(3) Avoid the following when selecting the mounting location.
• Rapid changes in ambient temperature which may cause
condensation.
• Corrosive or inflammable gases.
• Direct vibration or shock to the mainframe.
• Water, oil, chemicals, vapor or steam splashes.
• Excessive dust, salt or iron particles.
• Excessive induction noise, static electricity, magnetic fields or noise.
• Direct air flow from an air conditioner.
• Exposure to direct sunlight.
• Excessive heat accumulation.
2.2 Dimensions
(
)
C100
(Unit: mm)
C400
(Unit: mm)
C410
(Unit: mm)
48
48
48
96
96
8 100
(53)
12 100
12
100
44 44
43
91
100
91
100
30
25
25
92
45
45
+0.8
0
+ 0.6
+0.6
0
0
0
+ 0.6
45
25
+0.8
0
92
30
2.3 Mounting procedures
C100
When the controllers are mounted on
Mounting bracket
panel with 1 to 5 mm in thickness
Since the mounting brackets are already
installed on the controller, insert the
controller into the panel front without
removal of the brackets.
When the controllers are mounted on
panel with 5 to 9 mm in thickness
Remove the mounting brackets from the
controller with a slotted screwdriver.
Engage each mounting bracket with holes
marked with 5-9 on the housing and then
insert the controller into the panel from the
panel front.
Mounting bracket
Hole for 5 to 9 mm
Hole for 1 to 5 mm
C400/C410/C700/C900
1. Prepare the panel cutout as
specified in 2.2 Dimensions.
2. Insert the instrument through
the panel cutout.
3. Insert an upper mounting bracket
along the bracket insertion groove
from the back, and then engage a
projection at the bracket end with
a recess at the groove front and
also insert metal fitting legs into
slots.
4. Tighten a bracket setscrew from the rear of the bracket with Phillips
screwdriver. Do not overtighten the bracket setscrew.
5. The other mounting bracket should be installed the same way described
in 3. and 4.
C900 is used in the above figures for explanation, but the same
mounting procedures also apply to C400/C410/C700.
Insertion
recess
Bracket
insertion
groove
Slot
Bracket
setscrew
3. WIRING
+0.6
+0.7
0
0
45
25
To prevent electric shock or instrument failure, do not
turn on the power until all the wiring is completed.
WARNING
!
3.1 Wiring Cautions
• For thermocouple input, use the appropriate compensation wire.
• For RTD input, use low resistance lead wire with no difference in resistance
between the three lead wires.
• To avoid noise induction, keep input signal wire away from instrument
power line, load lines and power lines of other electric equipment.
+0.7
0
68
30
+0.8
0
92
30
• If there is electrical noise in the vicinity of the instrument that could affect
operation, use a noise filter.
- Shorten the distance between the twisted power supply wire pitches to
achieve the most effective noise reduction.
- Always install the noise filter on a grounded panel. Minimize the wiring
distance between the noise filter output and the instrument power supply
terminals to achieve the most effective noise reduction.
- Do not connect fuses or switches to the noise filter output wiring as this will
reduce the effectiveness of the noise filter.
Instrument power
• Power supply wiring must be twisted and have a low voltage drop.
• About 5 to 6 seconds are required as preparation time for contact output
every time the instrument is turned on. Use a delay relay when the output
line, is used for an external interlock circuit.
• This instrument is not furnished with a power supply switch or fuses.
Therefore, if a fuse or power supply switch is required, install close to the
instrument.
- Fuse type: Time-lag fuse
- Recommended fuse rating: Rated voltage 250 V Rated current: 1 A
• For an instrument with 24 V power supply, supply power from a SELV
circuit.
Shorten distance between
pitches
Twist these liadwires
IN
Noise filter
OUT
Minimize
distance
Instrument
Power
terminals
IMNZC21-E1
48
43
C700
(Unit: mm)
72
12
72
100
67.6
25
68
77
67.6
C900
(Unit: mm)
96
96
Panel thickness: 1 to 5 mm or 5 to 9 mm (C100)
1 to 8 mm (C400/C410/C700/C900)
2
12
100
91
92
+0.8
0
25
91
100
3.2 Terminal Configuration
A
A
A
A
p
9
A
A
y
C100
larm 1 or
Control loop
break alarm
larm 2, Heater break
alarm or Control loop
break alarm
Trigger for
triac drive
T2
3
OUT
T1
4
G
5
NO: Normally open
C400, C410, C900
NO: Normal ly open
NC: Normally closed
Trigger for
triac drive
T2
6
OUT
T1
7
G
8
F, D action types
C700
NO: Normally open
NC: Normally closed
Trigger for
triac drive
T2
6
OUT
T1
7
G
8
F, D action types
Specifications
Input:
Input type:
Thermocouple: K, J, R, S, B, E, T, N, PLII,
RTD: Pt100, JPt100
Voltage: 0 to 5 V DC, 1 to 5 V DC
Current: 0 to 20 mA DC, 4 to 20 mA DC
Sampling cycle:
Input range: See Input range table
Control method:
ON/OFF, P, PI, or PD actions is available
Control output:
Relay contact output: 250 V AC, 3A (Resistive load)
Electrical life:
300,000 times or more (Rated load)
Voltage pulse output: 0/12 V DC
(Load resistance 600 Ω or more)
Current output: 4 to 20 mA DC
Trigger output (for triac driving):
Zero cross method for medium capacit
Load voltage used:
Load used: Resistive load
IMNZC21-E1
Alarm output
Relay contact
1
ALM1
2
NO
ALM2
3
NO
Control output
Voltage puls e/
Current
OUT
Voltage pulse/
Current
OUT
Voltage pulse/
Current
OUT
Relay contact
OUT
NO
L
24V
3
N
Relay contact
OUT
NO
NC
4
5
2
6
7
8
DC
24V
Voltage pulse/
Current
+
OUT2
−
+
OUT1
−
+
4
5
−
AC
+
7
8
−
W, A action types
AC
L
24V
N
Relay contact
+
−
OUT
7
NC
8
DC
2
3
NO
6
7
8
24V
Voltage pulse/
Current
+
OUT2
−
+
OUT1
−
W, A action types
W5Re/W26Re, U, L
Input impedance: Approx. 1 MΩ
Input impedance: 250 kΩ or more
Input impedance: Approx. 250 Ω
0.5 seconds
PID control
(Load resistance 600 Ω or less)
triac driving (100 A or less)
100 V AC line, 200 V AC line
1
13
2
3
4
5
11
CT input
Current
transformer
11 12
Power supply
+
2
3
−
Control output
5
6
7
8
Power supply
+
2
3
−
Control output
5
6
7
8
14
6
7
8
9
12
10
CT
1
Ground
L
AC
100−240V
N
Relay contact
OUT2
5
NO
6
OUT1
7
NO
8
1
Ground
AC
L
100−240V
N
Relay contact
OUT2
5
NO
6
OUT1
7
NO
8
Power supply
L
AC
6
100−240V
7
DC
L
N
+
6
24V
7
−
AC
6
24V
7
N
Input
TC input
+
8
TC
9
−
RTD input
8
A
RTD
B
9
10
B
Voltage/Cur rent
+
8
9
−
1
2
3
2
3
4
5
6
7
8
Input
TC input
−
15
TC
16
+
17
18
19
20
21
22
23
24
RTD input
B
14
B
15
RTD
A
16
9
10
11
12
13
14
15
16
CT input
Current
transformer input
12
13
Voltage/Current
−
15
16
+
1
2
3
Input
2
3
4
5
6
7
TC input
−
12
13
+
14
15
16
17
18
19
20
TC
Alarm output:
Relay contact output:
250 V AC, 1A (Resistive load)
Heater break alarm function:
Measured current:
0 to 30 A (CTL-6-P-N)
0 to 100 A (CTL-12-S56-10L-N)
Input rating: Maximum current rating: 120 mA
Input impedance: Approx. 2.5 Ω
Performance:
Display accuracy
(at the ambient temperature 23 °°°°C ±±±± 2 °°°°C):
Thermocouple:
± (0.5 % of display value + 1 digit) or ± 3 °C [6 °F]
Whichever is greater
R and S input: 0 to 399 °C [0 to 799 °F]:
± 6 °C [12 °F]
B input: 0 to 399 °C [0 to 799 °F]:
Accuracy is not guaranteed.
RTD: ± (0.5 % of display value + 1 digit)
or ± 0.8 °C [1.6 °F]
whichever is greater
Voltage/Current: ± (0.5 % of span + 1 digit)
8
9
RTD input
B
11
B
12
RTD
A
13
10
11
12
13
Voltage/Current
13
CT input
Current
transformer input
1
20
−
12
+
Electrical life: 50,000 times or more
(Rated load)
Alarm output
CT
•
Terminals whic h are not used acc ording to the
controller ty pe are all removed.
•
An example of the C900 is described here, the
same wiring examples also apply to C400/C410.
(Terminal numbers 17 to 24 are not provided for
C400/C410.)
•
Use the solder less terminal appropriate to the
screw size.
Recommended tightening torque:
0.4 Nm [4 kgfcm]
Maximum allowan ce: 1.0 Nm [10 kgfcm]
Alarm output
CT
•
•
Recommended tightening torque:
0.4 Nm [4 kgfcm]
Maximum all owance: 1.0 Nm [10 kgfcm]
Screw size: M3 x 6
Terminals Nos. 1 to 10
(Power terminal s, Alarm
terminals and Out
•
Terminals whic h are not u sed accordi ng to
the controller type are all removed.
•
When cont rol output is t rigger outpu t for tria c
driving, the n umber of alar m output point s
becomes 1.
•
Use the sol derless ter minal appropri ate to
the screw size.
Screw size: M3 x 6
Recommended tightening torque:
0.4 Nm [4 kgfcm]
Maxim um allowance: 0.7 Nm [7 kgfcm]
6.2 mm (0.24 inch) or less
Relay contact
9
ALM1
10
ALM2
11
Relay contact
8
ALM1
9
ALM2
10
Terminals which are not used according to
the control ler type ar e all removed.
Use the solderless terminal appropriate to the
screw size.
6.2 mm (0.24 inch)
or less
Screw size: M3 x 8
Memory backup:
Power:
Power supply voltage:
Power consumption:
6 VA max. (at 100 V AC)
9 VA max. (at 240 V AC)
6 VA max. (at 24 V AC)
145 mA max. (at 24 V DC)
Weight:
C100: Approx. 170 g
C700: Approx. 250 g
C400/C410: Approx. 260 g
C900: Approx. 340 g
larm 1 or
Control loop
break alarm
NO
larm 2, Heater break
alarm or Control loop
break alarm
NO
8.1 mm (0.32 inch) or les s
larm 1 or
Control loop
break alarm
larm 2, Heater break
NO
alarm or Control loop
break alarm
NO
Screw size: M3 x 8
Terminals Nos. 11 to 13
ut terminals)
Backed up by Nonvolatile Memory
Number of write times:
Approx. 100,000 times
Data storage period:
Approx. 10 years
85 to 264 V AC (Power supply voltage
range), 50/60 Hz
Rating: 100 to 240 V AC
21.6 to 26.4 V AC (Power supply
voltage range), 50/60 Hz
Rating: 24 V AC
21.6 to 26.4 V DC (Power supply
voltage range)
Rating: 24 V DC
(Input terminals)
8.1 mm (0.32 inch)
or less
3
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