DIGITAL CONTROLLER PXH
DATA SHEET
PXH9 is a 96 × 96 mm, high-performance digital controller
that assures high-speed and high-accuracy control.
With its abundant and flexible input/output points and powerful math function, it can be used for a wide range of applications, including not only temperature control but also process control of pressure, flow rate, etc.
FEATURES
1. High-speed and high-accuracy control
• High-speed control in sampling cycle of 50 ms
• Highly accurate input indication of ± 0.1% FS
•Measurement resolution of 0.01° C (Resistance
bulb input)
2. Multitude of input/output points (including options)
• Universal measurement input: 2 points
(Thermocouple/Resistance bulb/Voltage/Current)
• Auxiliary analog input: 1 point
(DC voltage/Potentiometer)
• Analog output: 2 points
• Digital input: 9 points
•Digital output: 9 points
• Transmitter power supply
3. Substantial communication function
• PC Loader interface (RS232C) equipped as standard
• RS485 (Modbus RTU) communication function
(Option)
4. Strong math function
• Applicable to various applications such as correction processing and input switching based on
mathematical calculations between multiple inputs. Refer to the list of expressions on page 17
for the type of mathematical expressions.
5. Complex setting achieved by easy operation
• Equipped with control template function that allows input/output according to control type and
automatic allocation of calculation blocks.
6. Totalizer function
• Input is selectable from any of measurements or
a result of math operation.
• Seven-digit total display
• Batch control outputs
7. Excellent user-friendliness
• Multi-function, large LED display with the high
level of visibility
• Provision of three function keys whose function
allocation can be changed
•IP66 waterproof front face (NEMA-4X)
• Compact size with the depth of only 81.5 mm
SPECIFICATIONS
1. General specifications
(1) Power supply voltage:
-
100 V (
50/60 Hz
(2) Power consumption:
15 VA or less (100 V AC)
20 VA or less (220 V AC)
(3) Insulation resistance:
20 MΩ or more (500 V DC)
(4) Withstand voltage:
Power supply ↔ All terminals;
Relay output ↔ All terminals;
Others; 500 V AC for 1 minute
(5) Applicable standard:
UL, C-UL, CE Mark
15%) to 240 V (+10%) AC,
1500 V AC for 1 minute
1500 V AC for 1 minute
PXH9
EDS11-157a
Date
Jan. 10, 2006
PXH9
2. Input section
2-1 Measurement value input
(1) Number of inputs: 1 or 2 (Option)
(2) Input signal type:
Thermocouple :J, K, R, B, S, T, E, PR40/20, N, PL-II,
WRe5-26
Resistance bulb :Pt100Ω (3-wire)
Voltage :0 to 10 mV DC, 0 to 50 mV DC,
1 to 5 V DC, 0 to 5 V DC, 0 to 10 V DC
Current :4 to 20 mA DC, 0 to 20 mA DC
(3) Measurement range:
Refer to the measurement range table
(page 16).
(4)
Input indication accuracy (Ambient temperature: 23° C):
• Thermocouple:(± 0.1%FS± 1digit± 1° C) or ± 1.5° C,
whichever is larger
Thermocouple B: 0° C to 400° C range;
± 5%FS± 1digit± 1° C
Thermocouple R: 0° C to 500° C range;
± 1%FS± 1digit± 1° C
• Resistance bulb input:
(± 0.1%FS± 1digit) or ± 0.25° C, whichever
is larger
• Voltage input, current input:
±0.1%FS ±1digit
(5) Input sampling cycle: 50 ms
(6) Input impedance
• Thermocouple, voltage input (mV): 1 MΩ or more
• Voltage input (V): 1M Ω
•Current input: 250 Ω
(7) Influence of source resistance / Permissible wiring
resistance
• Thermocouple, voltage input (mV):0.1%FS per 100 Ω
• Voltage input (V): 0.1%FS per 500 Ω
• Resistance bulb input: 10 Ω or less (per cable)
(8) Permissible input voltage
• Voltage (V) input: +35 V /
•Current input: ± 25 mA DC
•
Thermocouple/Resistance bulb/Voltage (mV) input:
(9) Noise reduction ratio
•Normal mode: 40 dB (50/60 Hz)
• Common mode: 120 dB (50/60 Hz)
(10) Input value correction function (Input conditioner)
• User adjustment:
± 50%FS both for zero point and span
point
• Square-root extractor:
OFF or cut point from 0.0 to 125.0%
• First-order lag filter: 0.0 to 900.0 sec
• Linearizer: 16 straight lines
2-2 Auxiliary analog input (Option)
(1) Number of inputs: 1
(2) Input signal
1) DC voltage: 1 to 5 V DC / 0 to 5 V DC / 0 to 10 V DC
• Input accuracy: ± 0.2%FS
• Sampling cycle: 100 ms
• Input impedance: 1 MΩ
• Influence of source resistance: 0.2%FS per 500 Ω
• Permissible input voltage: +35 V /
•Noise reduction ratio
• Normal mode: 40 dB (50/60 Hz) or more
• Common mode: 120 dB (50/60 Hz) or more
-
10 V DC
-
10 V DC
± 5 V DC
2) Valve opening feedback signal (Potentiometer)
• Resistance range: 100 Ω ro 10 kΩ 3-wire
• Resolution: ± 0.1%FS
• Input accuracy: ± 1.0%FS
(3) Input value correction function
• User adjustment:
± 50%FS both for zero point and span
point
• Square-root extractor:
OFF or cut point from 0.0 to 125.0%
• First-order lag filter: 0.0 to 900.0 sec
• Linearizer: 16 straight lines
2-3 Digital input (DI)
(1) Number of points:
Standard: 4 (Di1 to 4)
Expansion: 5 (9 points in total at max.)
(2)
Specifications:
(3) Contact capacity:
(4) Operation pulse width: 200 ms or more
(5) Function: Control mode changeover, EX-MV selec-
2-4 Math function
(1) Kind of formula:
(2)
Operation parameter:
(3) Data type: Engineering unit (with floating point)
3. Output section
3-1 Control output
3-1-1 Control output 1
(1) Number of points: 1
(2) Type: Select one from 1 to 4, as shown below.
1. Relay contact output
• Contact structure: SPDT contact (Do4 used)
• Contact capacity:
• Contact life: 100,000 operations (rated load)
2. SSR/SSC driver output (Voltage pulse)
• Rating: 12 V DC (10 to 15 V DC) / Maximum
• Load resistance:
3. Current output (4 to 20 mA DC)
• Accuracy: ±0.2%FS
• Linearity: ±0.2%FS
• Load resistance:
Contact or transistor input
12 V DC, Approx. 2 mA (per point)
tion, SV changeover, Control standby,
Auto-tuning start, Timer start, Alarm latch
cancel.
24 kinds, selected by the parameter setting. (see page 17.)
Analog input (PV1, PV2, Ai1),
Constant (K1 to K16)
220 V AC / 30 V DC, 3 A (Resistive load)
220 V AC / 30 V DC, 1 A (Inductive load)
current: 20 mA (provided with protection
against short circuit)
600 Ω or more
600 Ω or less
2
4. Motorized valve operation pulse output (OPEN,
CLOSE output)
• Contact structure:
SPST contact x 2
(with interlock circuit)
• Contact capacity:
220 V AC / 30 V DC, 1 A
(Resistive load)
220 V AC / 30 V DC, 0.3 A
(Inductive load)
•
Contact life:100,000 times or more (rated load)
3-1-2 Control output 2 (Cooling output)
(1) Number of points: 1
(2) Type: Select one from 1 to 3, as shown below.
1. Relay contact output
• Contact structure: SPST contact (Do3 used)
• Contact capacity:
220 V AC / 30 V DC, 1 A (Resistive load)
220 V AC / 30 V DC, 0.3 A (Inductive load)
• Contact life: 100,000 operations (rated load)
2. SSR/SSC driver output (Voltage pulse)
• Rating: 12 V DC (10 to 15 V DC) / Maximum
current: 20 mA (provided with protection
against short circuit)
• Load resistance:
3. Current output (4 to 20 mA DC)
• Accuracy: ±0.2%FS
• Linearity: ±0.2%FS
• Load resistance:
3-2 Digital output (Do)
(1) Number of points:
(2) Specifications:
• Contact structure:
• Contact capacity:
• Contact life: 100,000 operations (rated load)
(3) Function: Alarm output, timer output, control out-
(4) Restriction: 4 Do points max. for 2-point measure-
(5) Others: Do4 or Do3 becomes control output
600 Ω or more
600 Ω or less
Standard: 2 (Do3, 4)
Expansion: Maximum 7 (9 points in total
at max.)
SPST contact (except for Do4)
SPDT contact (Do4)
220 V AC / 30 V DC, 1A (Resistive load)
put (Do4, Do3)
ment input model.
when relay is selected as control output.
Do4 becomes control output for motorized valve control type.
(4) Restriction: The sum of control output (current or
SSR/SSC drive), analog re-transmission
output and transmitter power supply
output is 2 points at maximum.
3-4 Transmitter power supply output
(1) Number of points: 1 at max.
(2) Rating: 24 V DC (17 to 30 V DC), Maximum cur-
rent; 23 mA (with short circuit protection)
(3) Restriction: The sum of control output (current or
SSR/SSC drive), analog re-transmission
output and transmitter power supply
output is 2 points at maximum.
4. Control function
4-1 Controller type
(1) Control system
• Advanced PID control with Auto-tuning
(2) Controller template
Operation block and I/O definition can be selected by parameter setting from available types according to targets of control.
• Basic type
1-loop basic PID controller (with math function)
1-loop SV selectable PID controller (with math function)
1-loop basic PID controller (without math function)
1-loop SV selectable PID controller (without math function)
1-loop input selectable PID controller (with math function)
• Motorized valve control type
[With or without valve openings feedback input is select-
able]
1-loop motorized valve controller (with math function)
1-loop SV selectable motorized valve controller (with math
function)
1-loop motorized valve controller (without math function)
1-loop SV selectable motorized valve controller (without math
function)
• Heating/cooling control type
1-loop heating/cooling controller (with math function)
1-loop SV selectable heating/cooling controller (with math
function)
1-loop heating/cooling controller (without math function)
1-loop SV selectable heating/cooling controller (without math
function)
Note:
The control template can only be changed within each of
basic type, motorized valve control type, and heating/cooling control type controllers.
3-3 Analog re-transmission output
(1) Number of points: 2 at max.
(2) Type: Current output (4 to 20 mA DC)
• Accuracy: ±0.2%FS
• Linearity: ±0.2%FS
• Load resistance
(3) Output contents:
:
600 Ω or less
PV, SV, MV, DV, AIM (Math operation
result), MVRB (Valve openings), TV
(Totarizer result)
3
PXH9
4-2 Control parameter
4-2-1 Basic type, motorized valve control type
• Proportional band (P):
0.0 to 999.9%, ON/OFF (2-position)
operation at P = 0
• Integral time (I):
0.0 to 3200.0 sec, Integral operation OFF
at I = 0
•Derivative time (D):
0.0 to 999.9 sec, Derivative operation
OFF at D = 0
• Anti-reset windup: 0 to 100% of measurement range
• Proportion cycle:
1 to 150 sec, For SSR/SSC drive or relay
output only
• Hysteresis width:
50% of measurement range, for ON/OFF
operation only
• Control cycle: 50 ms
• Number of SV and PID groups: 7 sets
• Method of changing PID groups:
Selected by parameter, SV reference,
PV reference
4-2-2 Heating/cooling control type
• Proportional band on heating side (P): 0.0 to 999.9%
• Integral time on heating side (I):
0.0 to 3200.0 sec, Integral operation OFF
at I = 0
• Derivative time on heating side (D):
0.0 to 999.9 sec, Derivative operation
OFF at D = 0
• Proportional band on cooling side (Pc): 0.0 to 999.9%
• Integral time on cooling side (Ic):
0.0 to 3200.0 sec, Integral operation OFF
at Ic = 0
• Derivative time on cooling side (Dc):
0.0 to 999.9 sec, Derivative operation
OFF at Dc = 0
• Anti-reset windup: 0 to 100% of measurement range
• Proportion cycle:
1 to 150 sec, For SSR/SSC drive or relay
output only
• Hysteresis width:
50% of measurement range, for ON/OFF
operation only
• Control cycle: 50 ms
• Number of SV and PID groups: 7 sets
• Method of changing PID groups:
Selected by parameter, SV reference,
PV reference
4-3 Control mode
Type of mode:
(1)
(2) Changeover: Available via key, Digital input and Com-
Auto/Manual/Remote
munication.
Auto ↔ Manual: With balanceless,
bumpless transfer
Auto/Manual → Remote: With balance,
bumpless transfer
Auto/Manual ← Remote:
With balanceless,
bumpless transfer
5. Alarm function
5-1 Number of alarm points
• 8 points for setting
5-2 Type of alarm
• PV value (upper/lower limit, absolute/deviation, band), PV
variation ratio, SV upper/lower limit, main unit error
<Optional operation>
• Hold (standby) function
• Operation latching
• Excitation/non-excitation
• Operation delay: 0 to 9999 sec, 0 to 9999 min
5-3 Alarm output
• Output to DO1 to DO4 and DO11 to DO15 (Allocation
change available.)
6. Communication function
6-1 PC Loader interface
(1) Number of points: 1
(2) Physical specifications: EIA RS232C
(3) Protocol: Modbus-RTU
(4) Communication method:
3-wire, half-duplex bit serial asynchronous system
(5) Data type, Data length:
8 bits, Parity; Odd/Even/None
(6) Communication speed:
9600 bps, 19200 bps, 38400 bps
(7) Connector: Connected with miniature jack on bottom
face of the main unit (2.5 mm dia., 3-pole)
* Special cable is prepared as option.
6-2 RS-485 interface (option)
(1) Number of points: 1
(2) Physical specifications: EIA RS485
(3) Protocol: Modbus-RTU
(4) Communication method:
2-wire, half-duplex bit serial asynchronous system
(5) Data type, Data length:
8 bits, Parity; Odd/Even/None
(6) Communication speed:
9600 bps, 19200 bps, 38400 bps
(7) Connection topology:
Multi-drop, Up to 32 units can be connected including master device.
(8) Communication distance:
500 m max. (Total length of connection)
4
7. Other functions
7-1 Parameter recipe
(1) Number of recipe groups: 7 sets
(2) Number of parameters which can be registered:
10 parameters
(3) Method of changing recipe groups:
Synchronized with the change of PID
groups
7-2 Totalizer
-
(1) Totalized value:
(2) Totalize source: PV1, PV2, Ai1, AiM [MATH result]
(3) Totalize resolution: XXX.XXXX to XXXXXXX
(4) Status: RUN/HOLD/RESET
(5) Totalized value output: via Re-transmission
(6) Alarm/Batch output: 2 points, via Do1 to Do4
(7) Totalized data backup:
8. Operation/display section
8-1 Parameter setting
• Digital setting by UP/DOWN key
• Key-lock function provided
• User function key (3 keys) provided
8-2 Display
(1) Type: LED
(2) Display contents
Measurement value display:
Setting display
Auxiliary display:
Bar graph: 12 segments (orange)
Status display indicator lamp:
9. Processing at power failure
• Memory protection: Non-volatile memory
10. Self diagnosis
• System: Program error monitoring performed by
11. Operation and storage conditions
(1) Ambient operating temperature:
(2) Storage temperature:
(3) Ambient humidity for use/storage:
(4) Warm-up time: 15 min or longer
1999999 to 9999999 (7 digits)
30 seconds interval to EEPROM
7 segments, 5 digits (red), character
height; 20 mm
: 7 segments, 5 digits (orange), character
height; 13 mm
7 segments, 2 digits (orange), character
height; 12 mm
Standby, control mode, output, alarm
watchdog timer
-
10° C to 50°C
-
20° C to 60°C
90% RH or less (non-condensing)
12. Structure
(1) Mounting method: Panel flush mounting
(2) External terminal: M3 screw terminal
(3) Case
• Material: Plastic
(Flame-resistant, UL94V-0)
• Color: Gray
(4) Protection
• Faceplate: IEC IP66, NEMA-4X-equivalent
(When mounted on panel with our genuine packing. Waterproof feature unavailable in side-by-side mounting.)
• Body: IEC IP20 (Provided with slits on top and
bottom faces)
• Terminal section:
IEC IP00. Terminal cover can be mounted
(option).
(5) External dimension:
96 (W) x 96 (H) x 81.5 (D) mm
* “D” is the depth from the front face of
the panel (not including terminal cover).
(6) Mass: Approx. 500 g
13. Range of delivery
• Controller …… 1 piece
• Instruction manual …… 1 piece
• CD-ROM …… 1 piece
Contents: User’s manual
Communication function manual
PC loader software
PC loader software manual
• Mounting bracket …… 2 pieces
• Waterproof packing …… 1 piece
• Terminating resistor …… 1 piece (only for the model
with communication function)
14. PC Loader Software
(1) System requirements
• PC: DoS/V PC (PC-AT compatible PC)
• Operation System:
Confirmed on
Windows 2000 (English)
Windows XP (English)
• RAM: 128MB or more
• HDD capacity (Empty area): 100 MB or more
• CD-ROM drive: Required
• Display resolution: 1024 x 768 dots or more
(2) Connection to the PXH controller
• Via PC Loader interface on bottom face of the main
unit (Optional dedicated cable is required.)
or
Via RS485 communication (RS485 function is necessary for PXH.)
5
PXH9
BLOCK DIAGRAMS
Template No. 10
Measurement
value
PV1
input 1
Measurement
value
input 2
Aux. input
/Remote
SV input
Remote
command
Remote
acknowledge
Manual
command
EX-MV
output
command
Conditioner
PV2
Conditioner
Ai1
Conditioner
[REM]
(Parameter setting or key operation)
Di1
Di2
Di3
Di4
Di11
to
Di15
(
CONTROLLER TEMPLATES
1-loop basic PID controller (with math function)
Result of
Math
module
calculation
[AiM]
Local SV
Remote SV
[RSV1]
Remote command
Remote
acknowledge
Input
Input
Input
Di allocation
R-ACK
SMV
No
allocation
EX-MV
command
No
allocation
* Di allocation can be
changed with para meters.
* Since the R-ACK
value is INH at the
time of delivery, set
it to ENA before use.
)
PV
PID
L
R
EX-MV output command
Preset output
value
[STBY] or
Di allocation
Manual
command
operation
SV
EX-MV setting
[EXM1]
Manual MV setting
A/M chargeover
[PMV1]
Stand-by
command
A/M chargeover
[Ao1T]
[Ao2T]
Re-trans-
mission
output 1
RET1
Re-trans-
mission
output 2
RET2
Control
output 1
MV1
* Do allocation can be
* Higher priority is
Output type
setting
Depend on
[OTYP]
setting
DO allocation
ALM1
ALM2
ALM3
ALM4
No
allocation
changed with
parameters.
assigned to designation
of [OTYP] for the
output to Do4.
LED display allocation
ALM
1 to 5
OR of all
the ALMs
AO 1
AO 2
DO 4
OUT1
OUT2
DO4
Do1
Do2
Do3
Do4
Do11
to
Do15
L Do1
to
L Do5
L ALM
Current
output or
SSR driver
output
Current
output or
Transmitter
supply
Relay
output
(Control
output)
Relay
output
(Do)
Indicator
lamp
PV
SV
MV
PV
SV
A
RUN
M
STBY
MV
Alarm
Template No. 11
Measurement
value
input 1
Measurement
value
input 2
Aux. input
SV select
signal 1
SV select
signal 2
SV select
signal 3
EX-MV
output
command
PV1
PV2
Ai1
Di1
Di2
Di3
Di4
Di11
Di15
to
Input
Conditioner
Input
Conditioner
Input
Conditioner
* Di allocation can be
changed with para meters.
1-loop SV selectable PID controller (with math function)
PV
[Ao1T]
SV
SV
MV
PV
MV
Alarm
[Ao2T]
Di allocation
SV select 1
SV select 2
SV select 3
EX-MV
command
No
allocation
Math
module
Result of
calculation
[AiM]
Local SV
SV select
SV1
[SV1]
SV7
[SV7]
to
Preset output
value
[STBY] or
Di allocation
command
PV
L
SV
EX-MV setting
R
Manual MV setting
EX-MV
output command
[PMV1]
Manual
PID
operation
[EXM1]
Stand-by
command
A/M chargeover
A
RUN
M
STBY
Re-trans-
mission
Output type
output 1
mission
output 2
Control
output 1
setting
Depend on
[OTYP]
setting
RET1
Re-trans-
RET2
MV1
DO allocation
ALM1
ALM2
ALM3
ALM4
No
allocation
* Do allocation can be
changed with parameters.
* Higher priority is
assigned to designation
of [OTYP] for the
output to Do4.
LED display allocation
ALM
1 to 5
OR of all
the ALMs
AO 1
AO 2
DO 4
OUT1
OUT2
DO4
Do1
Do2
Do3
Do4
Do11
to
Do15
L Do1
to
L Do5
L ALM
Current
output or
SSR driver
output
Current
output or
Transmitter
supply
Relay
output
(Control
output)
Relay
output
(Do)
Indicator
lamp
6