RKC INSTRUMENT MA901 Series Operating and maintenance instructions

General Description
MA901
Features
The MA901 controls up to 8 channels in a compact 1/4 DIN size. The MA901 increases zone density and makes smaller numbers of loops
affordable, yet still holds many of the advantages that a single loop controller might offer. This unit will aid designers of control equipment saving
labor costs, installation costs, electric panel sizes, and operation costs.
8 channels of control
Multi-memory area
Digital communications
Digital contact input
Multiple alarm functions
Close horizontal mounting
IP65 Waterproof/Dustproof protection
8 channels of temperature controls are packed into 96 x 96 x
100mm case. The MA901 can reduce your panel cutouts and
make your panel board smaller.
8 channels Control
Up to 8 kinds of combinations of temperature set value, PID
constant, alarm set value etc for each channel can be
registered as "memory area" (recipe).
The change of settings caused by the change of a process and
product can be simply realized only by switching the "area". The
switching of the area by optional external contact input is also
available.
The available parameters for multi memory area :
SV, Alarm set values, PID constants, Anti-reset windup,
Overlap/dead band, Setting change rate limiter, Channel
used/unused
Multi-Memory Area
An optional communications interface, RS-232C or RS-422A,
RS-485 is available for networking to computers, PLCs and
SCADA software. MODBUS or ANSI (RKC standard) protocol
can be selected. Up to 31 units can be interfaced on one RS-
422A or RS-485 communication line.
Digital Communications (Optional)
Digital Contact Input (Optional)
An optional digital contact input is available for RUN/STOP and
memory area switching. (RUN/STOP switching can also be
completed at the front key panel.)
MA901_03E
Multi-Loop Digital Temperature Controller MA901
1
R
R
SV
PV
CH
SET R/S
CH
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
MA900
3MLA2MLA1MLATA
AREA
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
PV
SV
AT OUT1 OUT2 ALM1 ALM2
R/S
SET
CB900
Host computer
SV
PV
CH
SET R/S
CH
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
MA900
3MLA2MLA1MLATA
AREA
SV
PV
CH
SET R/S
CH
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
MA900
3MLA2MLA1MLATA
AREA
Area 1
P, I, D, AL1
etc..
Area 3
P, I, D, AL1
etc..
8 areas
Select
PLC
The MA901 provides a wide selection of alarm types to
configure up to three alarms.
Alarm 1 (Standard) :
Temperature alarms, Loop break alarm, FAIL
Alarm 2 (Optional) :
Temperature alarms, Heater break alarm, FAIL
Alarm 3 (Optional) :
Temperature alarms, FAIL
•Alarm output is common to all channels.
Multiple Alarm Functions
(800) 576 - 6308
www.rkc-usa.com
Distributed By Inc,
RKC

Multi-Loop Digital Temperature Controller MA901
Input
Alarm (Up to 3 points) (Optional)
Performance
Control
Number of Inputs
8 points
Input
a) Thermocouple : K, J, R, S, B, E,T, N (JIS/IEC), PLII (NBS)
W5Re/W26Re (ASTM), U, L (DIN)
•Influence of external resistance : Approx. 0.2µV/Ω
•Input break action : Up-scale
b) RTD : Pt100 (JIS/IEC), JPt100 (JIS)
•Influence of input lead resistance : Approx.0.01[%/Ω] of reading
•Maximum 10Ωper wire
•Input break action : Up-scale
•Input is not isolated.
c) DC voltage : 0 to 5V, 1 to 5V, 0 to 10V
•Input break action : Down-scale
•Input is not isolated.
SamplingTime
1 sec
Input Filter
First order lag digital filter
Time constant 1 to 100 sec. (OFF when 0 is set)
PV Bias
- span to +span (Within -1999 to 9999)
Measuring Accuracy
a) Thermocouple
±(0.3% of reading + 1 digit) or ±2˚C (4˚F) whichever is larger
•Accuracy is not guaranteed between 0 and 399˚C (0 and 799˚F)
for type R, S and B.
•Accuracy is not guaranteed less than -100.0˚C ( -158.0˚F) for type
K, J, T and U.
b) RTD
±(0.3% of reading + 1 digit) or ±0.8˚C (1.6˚F) whichever is larger
c) DC voltage
±(0.3% of span + 1 digit)
Insulation Resistance
More than 20MΩ(500V DC) between measured terminals and ground
More than 20MΩ(500V DC) between power terminals and ground
Dielectric Strength
1000V AC for one minute between measured terminals and ground
1500V AC for one minute between power terminals and ground
Control Method
PID control (with autotuning function)
•Available for reverse and direct action. (Specify when ordering.)
Major Setting Range
Set value : Same as input range.
Proportional band
: 1 to span (ON/OFF action when P=0)
•Differential gap at ON/OFF action is 2˚C (˚F) or 0.2%.
Integral time : 1 to 3600sec.(P + D action when I=0)
Derivative time : 1 to 3600sec.(P + I action when D=0)
Anti-Reset Windup(ARW) :1 to 100% of heat side proportional band
(Integral action is OFF when ARW=0)
Proportional cycle time : 1 to 100 sec.
Operation Mode
Available for switching each channel to be normal (control), alarm
monitoring (control output OFF, alarm action enabled) and unused.
Control Output
Relay output : Form A contact, 250V AC 3A (resistive load)
Voltage pulse output : 0/12V DC
(Load resistance : More than 600Ω)
Current output : 4 to 20mA DC or 0 to 20mA DC
(Load resistance : Less than 600Ω)
Triac output : Rating : 0.5A
(An ambient temperature is less than 40˚C)
•Measurement terminals and output terminals are not isolated.
•Alarm 1 output (Standard), Alarm 2, 3 (Optional)
Temperature Alarm
a) Type : Deviation High, Low, High/Low, Band,
P
rocess High, Low
Set value High, Low, Fail
b) Differential gap : 2˚C (˚F) or 2.0˚C (˚F) (Temperature input)
0.2% (Voltage, current input)
Control Loop Break Alarm (LBA)
a) LBA time setting : 0.1 to 200.0 min.
b) LBA deadband : 0 to 9999 ˚C [˚F] or 100% of span
(OFF by setting zero)
•Output from Alarm 1 terminal.
Heater Break Alarm (For single phase)
a) CT type : CTL-6-P-N (30A), CTL-12-S56-10L-N (100A)
b) Display range : 0.0 to 100.0A
c) Accuracy : ± 5% of input value or ± 2A
(whichever is larger)
• Output from Alarm 2 terminal.
Alarm Output
a) Alarm Output 1 to 3
Relay output, Form A contact 250V AC 1A (resistive load)
Communications (Optional)
Waterproof/Dustproof (Optional)
a) Communication method : RS-232C (3-wire), RS-422A (4-wire)
RS-485 (2-wire)
b)
Communication speed : 2400, 4800, 9600, 19200 BPS
c) Bit format
Start bit : 1
Data bit : 7 or 8 •For MODBUS 8 bit only
Parity bit : Even, odd or without parity
Stop bit : 1 or 2
d) Communication code : ASCII(JIS) 7-bit code
e) Maximum connection : RS-232C : 1 unit
RS-422A, RS-485 : 31 units
(Address can be set from 0 to 99.)
Contact Input (Optional)
Number of Inputs : 5 points
Contact InputType
a) RUN/STOP switching (OPEN : STOP, CLOSE :RUN)
b) Memory area selection :
Area selection : 3 points (BCD input 0 to 7)
Data set : 1 point
Input Rating
Non-voltage contact input (OPEN :500kΩor more, CLOSE : 10Ωor less)
IP65
•Waterproof/dustproof protection only effective from the front in panel
mounted installations.
Specifications
2MA901_03E

3MA901_03E
Multi-Loop Digital Temperature Controller MA901
General Specifications
Compliance with Standards
SupplyVoltage
a) 90 to 264V AC (Including supply voltage variation)
[Rating : 100 to 240V AC] (50/60Hz common)
b) 21.6 to 26.4V AC(Including supply voltage variation)
[Rating : 24V AC] (50/60Hz common)
c) 21.6 to 26.4V DC(Ripple rate 10% p-p or less) [Rating : 24V DC]
Power Consumption
Less than 14VA for standard AC type at 100V
Less than 20VA for standard AC type at 240V
Less than 11VA for 24V AC type
Less than 330mA for 24V DC type
Power Failure Effect
Not affected by power failure shorter than 30msec, otherwise reset to
the initial state.
Operating Environments
0 to 50˚C [32 to 122˚F] , 45 to 85% RH
Memory Backup
Backed up by non-volatile memory.
Number of writing : Approx. 100,000 times
Data retaining period : Approx. 10 years
NetWeight
Approx. 560g
External Dimensions (W x H x D)
96 x 96 x 100mm
• CE Mark
•UL Recognized
•CSA Certified
•C-Tick Mark
R
R

Model and Suffix Code
Specifications
Model and Suffix Code
Model
Control method
Control output
(CH 1 to 4)
Range
Input type
Instrument version Version symbol
Alarm 2
1, 2, 3
Alarm 3
1
Contact input
Digital communications
2
Waterproof/Dustproof
Alarm 1 1
Power supply voltage
Control output
(CH 5 to 8)
MA901-8
See Range and Input Code Table
See Range and Input Code Table
PID control with AT (reverse action)
PID control with AT (direct action)
No alarm
Heater break alarm (CTL-6-P-N)
Heater break alarm (CTL-12-S56-10L-N)
See Alarm 2 and 3 Code Table
No alarm
See Alarm 2 and 3 Code Table
Not supplied
Contact input (RUN/STOP, Area select • Data set)
24V AC/DC
100 to 240V AC
Not supplied
RS-232C (3-wire system : RKC standard)
RS-422A (4-wire system : RKC standard)
RS-485 (2-wire system : RKC standard)
RS-485 (2-wire system : MODBUS)
RS-422A (4-wire system : MODBUS)
RS-232C (3-wire system : MODBUS)
Not supplied
Waterproof/Dustproof protection
See Alarm 1 Code Table (Standard)
Relay output
Voltage pulse
DC current : 0 to 20mA
DC current : 4 to 20mA
Triac output
Relay output
Voltage pulse
DC current : 0 to 20mA
DC current : 4 to 20mA
Triac output
N
1Y
Y
N
1
4
5
6
7
8
N
D
3
4
M
V
7
8
T
N
N
P
S
F
D
M
V
7
8
T
Thermocouple RTD
Voltage DC
Range and Input Code Table
0
0
0200˚C
1000˚C
400˚C
0
0
600˚C
1372˚C
0 800˚C
0 1200˚C
0 100˚C
0 300˚C
0 500˚C
K
J
Input
Range
Code
K
K01
02
03
04
05
06
07
13
14
20
K
K
K
K
K-199.9 300.0˚C
08K 0.0 400.0˚C
09K 0.0 800.0˚C
10K
K
K0 450˚C
17K
K0.0 200.0˚C
29K 0.0 600.0˚C
37K -199.9 800.0˚C
38K 0
0
0800˚
F
200˚C
1600˚
F
0
0
2502˚ F
600˚C
20 70˚
F
0 400˚C
0 800˚C
0 1000˚C
0 1200˚C
K
KA1
A2
A3
A9
01
02
03
04
05
06
K0.0 800.0˚
F
A4K
K-199.9 999.9˚
F
B2K
J
J
J
J
J
J-199.9 300.0˚C
07J 0.0 400.0˚C
08J 0.0 800.0˚C
09J 0 450˚C
10J
-199.9 400.0˚C
-199.9 100.0˚C
T
W5Re
/W26Re
U
PL II
L
Input
Range
Code
01
02
T
T-100.0
-100.0
0.0 200.0˚C
400.0˚
F
350.0˚C
-199.9
0.0
752.0˚ F
752.0˚ F
-100.0 200.0˚
F
0.0 450.0˚
F
0 2000˚C
0 2320˚C
0 4000˚
F
T
T03
04
A1
A2
A3
A4
A5
01
02
A1
T
T
T
T
T
W
W
0 1300˚C
01A 0 1390˚C
02A 0 1200˚C
03A 0 2400˚
F
A1A
W
0
-199.9
-199.9 2534˚
F
999.9˚ F
600.0˚C
-199.9
0.0
100.0˚C
999.9˚
F
0.0 400.0˚C
-100.0 200.0˚
F
0 400˚C
0 800˚C
0 800˚
F
U
AA2
01
02
03
A1
A2
A3
01
02
A1
U
U
U
U
U
L
L
0 1600˚
F
A2L
L
-199.9
-100.0
-199.9 649.0˚C
100.0˚C
200.0˚C
-100.0
0.0
50.0˚C
100.0˚C
-100.0 100.0˚C
0.0 50.0˚C
0.0 200.0˚C
0.0 300.0˚C
0.0 500.0˚C
Pt100
JPt100
Input Range
Code
D
D01
02
03
04
05
06
07
08
09
10
D
D
0.0
0.0 100.0
100.0
0.0 100.0
5V
10V
5V
0
0
1
Input Range
Code
5
401
01
016
D
D
D
D
D
D-199.9
-100.0
-199.9 999.9˚
F
300.0˚ F
400.0˚ F
-199.9
0.0
200.0˚ F
200.0˚ F
-199.9 100.0˚
F
0.0 100.0˚
F
0.0 400.0˚
F
0.0 500.0˚
F
-199.9 649.0˚C
D
DA1
A2
A3
A4
A5
A6
A7
A8
A9
01
D
D
D
D
D
D
D
-199.9 200.0˚C
02P -100.0 50.0˚C
03P -100.0 100.0˚C
04P -100.0 200.0˚C
05P
P
0.0
0.0
0.0 50.0˚C
500.0˚C
100.0˚C
0.0 200.0˚C
0.0 300.0˚C
P
P06
07
08
09
10
P
P
P
4MA901_03E
1
Alarm output is common to all channels.
2
Heater break alarm and communication/contact input cannot be specified on the same hardware.
3
Heater break output is not available when either of control output is current output.
1Type K, J, T and U input : Accuracy is not guaranteed less than -100.0˚C (-158.0˚F)
2Type R, S and B input : Accuracy is not guaranteed between 0 to 399˚C (0 to 799˚F)
3DC voltage input can be used for the input of 0 to 20mA (in case of 0 to 5V) and 4 to 20mA (1 to 5V) by attaching
250Ωshunt resistor (sold separately) to input terminal. (The model of shunt resistor : KD100-55)
1
1
3
J
R
S
B
Input
Range
Code
0
0
01600˚C
3216˚
F
1769˚C
0
0
1350˚C
1769˚C
0 3200˚
F
0 1600˚C
0 3200˚
F
0 3216˚
F
400 1800˚C
R
R01
02
04
A1
A2
01
02
A1
A2
01
R
R
R
S
S
S
S
0 1820˚C
02B 800 3200˚
F
A1B 0 3308˚
F
A2B
B
2
1
1
1
2
2
Multi-Loop Digital Temperature Controller MA901
0
0
0800˚C
1200˚C
1000˚C
0
0
1600˚ F
2300˚ F
0 1832˚
F
0 1300˚C
0 2372˚
F
N
E
E
E01
02
A1
A2
01
02
A1
A2
E
E
N
N0.0 800.0˚C
06N
N
N0.0 999.9˚
F
A5N
0 800˚
F
A1J 0 1600˚
F
A2J 0 2192˚
F
A3J 0 400˚
F
A6J -199.9 999.9˚
F
A9J 0.0 800.0˚
F
B6J
0.0 200.0˚C
22J 0.0 600.0˚C
23J -199.9 600.0˚C
30J

5MA901_03E
Multi-Loop Digital Temperature Controller MA901
Deviation High
Deviation High with Alarm Hold
Deviation Low
Deviation High/Low
Band Alarm
A
E
B
C
DR J
K
L
Process Low Loop break alarm (LBA)
Process Low with Alarm Hold
Process High with Alarm Hold V
WSet value Low
Set value High
Alarm 1 Code Table
Code Type
FAIL
M
Code Type
Deviation High/Low with Alarm Hold
Deviation Low with Alarm Hold
G
F
H Process High
Code Type
Accessory
Current transformer for heater break alarm
CTL-6-P-N (0 - 30A)
CTL-12-S56-10L-N (0 - 100A)
Shunt resistor for DC current input
KD100-55
1Loop break alarm is not available for Heat/Cool PID control type.
1
Deviation High
Deviation High with Alarm Hold
Deviation Low
Deviation High/Low
Band Alarm
A
E
B
C
DJ
K
L
Process Low
Process Low with Alarm Hold
Process High with Alarm Hold
V
WSet value Low
Set value High
Alarm 2 and 3 Code Table
Code Type
FAIL
M
Code Type
Deviation High/Low with Alarm Hold
Deviation Low with Alarm Hold
G
F
H Process High
Code Type

Multi-Loop Digital Temperature Controller MA901
6MA901_03E
External Dimensions and Rear Terminals
Unit : mm
(Close horizontal mounting)
• Up to 6 unit
100
25
92 +0.8
0
92
+0.8
0
91.8
110.8
Panel Cutouts
30
L
L=96Xn-4 n : Number of controllers
(2=<n=<6)
+0.8
0
92
+0.8
0
For mounting of the controllers, panel thickness must be between 1 to 10mm.
When mounting multiple controllers close together, the panel strength should
be checked to ensure proper support..
•Dustproof and waterproof are not effective when controllers are closely mounted.
9.2
96
96
Power supply
CT1
CT2
CT input for
heater break
alarm
Description
Alarm 1
output
COM
•Use the solder less terminal appropriate tothe screw size.
Screw size : M3 X 6
7
8
9
10
11
12
1
2
3
4
5
6
19
20
21
22
23
24
13
14
15
16
17
18
31
32
33
34
35
36
25
26
27
28
29
30
43
44
45
46
47
48
37
38
39
40
41
42
55
56
57
58
59
60
49
50
51
52
53
54
1
2
3
4
5
6
7
8
9
11
10
12
No.
AC
100 to 240V
24V
DC
24V
NO
L
N
NO
(1) (2) (3)
NO
(1) (2) (3)
NO
(1) (2) (3)
NO
(1) (2) (3)
(1) Relay contact
(2) Voltage pulse/Current
Output 1
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 2
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 3
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 4
(3) Triac
Description
Alarm 3
output
Alarm 2
output
49
50
51
52
53
54
55
56
57
59
58
60
No.
NO
NO
NO
(1) (2) (3)
NO
(1) (2) (3)
NO
(1) (2) (3)
NO
(1) (2) (3)
(1) Relay contact
(2) Voltage pulse/Current
Output 5
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 6
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 7
(3) Triac
(1) Relay contact
(2) Voltage pulse/Current
Output 8
(3) Triac
Description
37
38
39
40
41
42
43
44
45
47
46
48
No.
DI
COM
1
2
4
SET
DI
DI
DI
DI
SG
T(A)
T(B)
R(A)
R(B)
SG
T/R(A)
T/R(B)
(1)
(2)
SG
SD
RD
(3)
Description
37
38
39
40
41
42
43
44
45
47
46
48
No. Description
13
14
15
16
17
18
19
20
21
23
22
24
No.
Contact input
(RUN/STOP)
Contact input
(Memory area)
(1) RS-422A
(2) RS-485
(3) RS-232C
Communications
CT3
CT4
COM
CT5
CT6
COM
CT7
CT8
COM
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
CH1
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH2
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH3
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH4
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
Description
25
26
27
28
29
30
31
32
33
35
34
36
No.
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
(1) (2) (3)
A
B
B
CH1
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH2
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH3
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
CH4
Measured input
(1) Thermocouple
(2) RTD
(3) Voltage
<Contact input • Communications type>
<Heater break alarm type>
Heater break alarm and communication/contact
input cannot be specified on the same hardware.
(800) 576 - 6308
www.rkc-usa.com
Distributed By Inc,
RKC