KONICS DPU Series User manual

DPU Series
E-2
•Fast response speed and high accuracy
by high-speed CPU
•Accurate feedback control (static current, static
voltage, static power) by RMS measurement
•Phase control and zero-crossing cycle control
(fixed/variable cycle) method for various load control
•Protects inner circuit by built-in rapid fuse
•Remote monitoring and remote control
Supports Modbus RTU protocol by RS485
communication
•Built-in customizable 6 digital inputs
•Basic variable alarm outputs; current error, heater
part (parts of heater break detection), etc.
•Supports multi input of control input signal
(current, voltage, potentionmeter, etc)
•Enables to install control part separately
•Applicable load : all loads such as super kanthal,
platinum, molybdenum, carbon, halogen lamp,
chrome, nickel, etc.
Number of phases
Item
Rated current capacity
Size
Power supply
Option
DPU Digital Power Controller Unit
R RS485 communication
D Remote Display Unit
A Remote Display Unit + RS485 communication
N No option
1 110 V
2 220 V
3 380 V
4 440 V
1 1-phase
3 3-phase
1-phase 3-phase
A 0 to 70 A 0 to 50 A
B 80 to 200 A 70 to 200 A
C 250 to 350 A
D 400 to 600 A
E Option
025 25 A 200 200 A
040 40 A 250 250 A
050 50 A 350 350 A
070 70 A 400 400 A
080 80 A 500 500 A
100 100 A 600 600 A
120 120 A 750 750 A ※1
150 150 A 950 950 A ※1
180 180 A
1 2 ADPU 025 R
※1: For 1-phase models, these are customizable.
Please read “Caution for your safety” in operation manual
before using this unit.
Features
Ordering information

Digital Thyristor Unit
E-3
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■Size type
1-phase 3-phase
Size Current
capacity WH D P1P2
Allowable cable
thickness
A0 to 70 A 97 260 170 82 150 Max. 4
B80 to 200 A 140280 174 127 150 Max. 4/0
C250 to 350 A 213 338 179 193 200 Max. 300MCM
D400 to 600 A 278 418 212 261 200 Max. 500MCM
Size Current
capacity WH DP1 P2 Allowable cable thickness
A0 to 50A 140 306 200 127 150 Max. 4
B70 to 200A 213 365 217 195 200 Max. 4/0
C250 to 350A 278 450 227.5 261 200 Max. 300MCM
D400 to 600A 427 528 275.5 405 330 Max. 500MCM
(unit: mm) (unit: mm)(unit: AWG) (unit: AWG)
※1. Variable cycle control is only for 1-phase model.
※ Environment resistance is rated at no freezing or condensation.
Series DPU
Number of phases 1-phase 3-phase
Power supply 110 VAC / 220 VAC / 380 VAC / 440 VAC (FAN and control power 220 VAC 50/60 Hz separately)
Allowable voltage 90 to 110% of rated voltage 85 to 115% of rated voltage
Rated frequency 50/60 Hz (auto recognition), allowable frequency range:±2 Hz
Min. load current 1 A
Output range Phase control : 5 to 98%, Z.C. control : 0 to 100%
Control method※1
• Phase control : Normal control(Non-Feedback), static voltage/static current/static power control(Feedback)
• Cycle control(Z.C.) : Fixed cycle control, Variable cycle control
• ON/OFF control(Z.C.)
Load • Phase control : resistance load, inductive load
• ON/OFF, Cycle control : resistance load
Power consumption Max. 7 W (except FAN operation power) Max. 10 W (except FAN operation power)
Display method
• Display value and SV display : 7Segment 4digit
• Status display : 4LED
• Display value percentage display : 11LED Bar
• Display value and SV display : 7Segment 4digit
• Status display : 6LED
• Display value percentage display : 11LED Bar
Output accuracy
• Static voltage feedback control : Within ±3% F.S. of rated voltage(within variable ±10% F.S. of rated voltage)
• Static current feedback control : Within ±3% F.S. of rated voltage(within variable 1 to 10 times of rated resistance)
• Static power feedback control : Within ±3% F.S. of rated voltage(within variable ±10% F.S. of rated voltage and within
variable 1 to 10 times of rated resistance)
• Normal control : within ±10% F.S. of rated voltage
Set method By front keys, By communication
Control input
• Auto: 4-20 mA / 0-20 mA / 0-5 VDC / 1-5 VDC / 0-10 VDC /
voltage pulse(0/12 VDC) / no-voltage input(ON/OFF) / communication input(RS485)
• Manual: inside 10 kΩVR, outside 3 to 10 kΩVR (min. 2 W)
Digital input(DI) AUTO/MAN switching, RUN/STOP switching, RESET, Output holding, SP setting (SP1 to 6)
Display content Control input, load voltage, load current, load power, load resistance, power supply frequency
Min. display output Min. 2.5% of rated voltage/current
Option output RS485 communication output(Modbus RTU method), [max. 32 units]
Dielectric strength 2000 VAC 50/60 Hz for 1 min.(between input terminal and power terminal)
Vibration 0.75 mm amplitude at frequency of 5 to 55 Hz (for 1 min.) in each of X, Y, Z directions for 2 hours
Insulation resistance Min. 200 MΩ(at 500VDC megger)
Noise resistance Square shaped noise by noise simulator (pulse width 1 ㎲) ±2 kV
Environ-
ment
Ambient
temperature
10 to 50 ℃, storage : 20 to 80 ℃
Ambient
humidity
5 to 90%RH
Approval
Unit weight • A Size : 3.0 kg
• B Size : 5.5 kg
• C Size : 11.0 kg
• D Size : 17.5 kg
• A Size : 6.5 kg
• B Size : 11.5 kg
• C Size : 20.0 kg
• D Size : 35.5 kg
Specifications

DPU Series
E-4
■1-phase
●A Size ●B Size ●C Size ●D Size
•Do not mix noise to input cable.
It is recommended to use shield cable,
twisted cable as input cable for effective noise.
•If there is possible to affect inductive noise,
it is recommended to use shielded cable at
high-frequency power for effective noise.
•DI input switch should be for low current and ON
resistance should be max. 20 Ω(including cable
resistance).
•DI input terminals are COM, DI-1 to 3, RUN,
AUTO.
•For remote display unit option model,
use connection cable as our standard cable.
•When connecting ⑥, ⑪, it operates as
MANUAL. When connecting, ⑥, ⑦, ⑪,
it operates AUTO.
RSU F.G.
RSU F.G.
RS U F.G.
RSU F.G.
Inside VR(10kΩ)
3-level slide
switch
Connections
Voltage input
Voltage
input
Outside
VR
AC power IN Load

Digital Thyristor Unit
E-5
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■3-phase
●A Size ●B Size ●C Size ●D Size
•Do not mix noise to input cable.
It is recommended to use shield cable, twisted
cable as input cable for effective noise.
•If there is possible to affect inductive noise,
it is recommended to use shielded cable at
high-frequency power for effective noise.
•DI input switch should be for low current and ON
resistance should be max. 20Ω
(including cable resistance).
•DI input terminals are COM, DI-1 to 3, RUN,
AUTO.
•For remote display unit option model,
use connection cable as our standard cable.
•When connecting ⑥, ⑪, it operates as
MANUAL. When connecting, ⑥, ⑦, ⑪, it
operates AUTO.
Inside VR(10kΩ)
3-level slide
switch
U
L1
(R)
L2
(S)
L3
(T)
VW
F.G.
U
L1
(R)
L2
(S)
L3
(T)
VW
F.G.
U
L1
(R)
L2
(S)
L3
(T)
VW
F.G.
U
L1
(R)
L2
(S)
L3
(T)
VW
F.G.
Load
Load
Load
Voltage input
Voltage
input
Outside
VR

DPU Series
E-6
(unit:mm)
■1-phase
●A Size : DPU1 A-25 / 40 / 50 / 70
※25A, 40A, 50A are not attached a fan.
●B Size : DPU1 B - 80 / 100 / 120 / 150 / 180 / 200
80
135°
154
209.5
110
147
170
60
Fixed 4-M5
82(P1)
97
40
150(P2)
260
30
3
120
Fixed 4-M5
127(P1)
140
50150(P2)
280
30
3
120
135°
222
241.5
121.5
151
174
Dimensions

Digital Thyristor Unit
E-7
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
●C Size : DPU1 C - 250 / 350
●D Size : DPU1 D - 400 / 500 / 600
In case of remote display unit + RS485 communication option,
※It is recommended for remote panel cable to use max. 5 m to prevent noise. (Check the length when ordering it.)
250
278
160°
494
156
195
Fixed 4-M6
261(P1)
278
40
200(P2)
280
90
212
418 345 38
4
213
160°
365
132
163
Fixed 4-M6
193(P1)
213
50200(P2)
179
338
300 38
4
●Panel cut-out
53.5 +0.5
0
100.5 +0.5
0
55
102
55
102

DPU Series
E-8
●A Size : DPU3 A - 25 / 40 / 50
●B Size : DPU3 B - 70 / 80 / 100 / 120 / 150 / 180 / 200
■3-phase
182
Fixed 4-M5
127(P1)
140
150(P2)63.526
306
160°
235.6
138
200
239
199 183
160°
364
176
217
278
Fixed 4-M6
195(P1)
213
200(P2) 40
280
365
43.1
●Panel cut-out
53.5 +0.5
0
100.5 +0.5
0
In case of remote display unit + RS485 communication option,
※It is recommended for remote panel
cable to use max. 5 m to prevent noise.
(Check the length when ordering it.)
55
102

Digital Thyristor Unit
E-9
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
●C Size : DPU3 C - 250 / 350
●D Size : DPU3 D - 400 / 500 / 600
Fixed 4-M6
261(P1)
278
200(P2)
280
40
140.5
92.5
450
370 40
125.5
160°
489
173.5
227.5
311
Fixed 4-M8
405(P1)
427
330(P2)
453
66.5
160°
746
204.5
275.5
404.5
204.5
167
167
528
463 32.5

DPU Series
E-10
■Input type
■RMS display
■Input selection
■AUTO/MANUAL selection by terminal input(DI)
[no. 7, 11 terminal]
Type Parameter
AUTO
input
Analog
input
Current
4-20mA
Input
impedance
100Ω
4-20
0-20mA 0-20
Voltage
1-5VDC
Input
impedance
25Ω
1-5
0-5VDC 0-5
0-10VDC 0-10
ON/OFF
input
Voltage
pulse 0/12VDC SSR
No-voltage
pulse ON/OFF -
Com. input RS485 - - COM
MANUAL input
Inside VR 10kΩ--
Outside VR 3 to 10kΩ--
This unit measures and displays RMS for accuracy.
※Ex) At pure resistance load, in normal control, when
input is 4-20mA and rating is 220V,
Output slope manual adjustment [ A-GA] as OFF
: Select the input by the inside 3-level slide switch
When the AUTO/MAN terminal input is ON(close), it
is AUTO input operation. When it is OFF(open), it is
MAN(manual) input operation.
When the AUTO/MAN terminal input is OFF(open)
(MANUAL operation), only INT or EXT input selected by
the 3-level slide switch is available.
In AUTO input, select it at control input type[ IN-P] at
setting mode1.
In MANUAL input, set output slope manual adjustment
[A-GA] in operating mode as OFF and select the input
by the inside 3-level slide switch.
In case of static voltage or static current, voltage and
current displays as below.
※Ex) At pure resistance load, in feedback control, when
input is 4-20mA and rating is 220V or 50A,
Input 4mA 8mA 12mA 16mA 20mA
MV 0% 25% 50% 75% 100%
Display
voltage 0.0V 70V 155.5V 209.7V 220.0V
Input 4mA 8mA 12mA 16mA 20mA
MV 0% 25% 50% 75% 100%
Display voltage
(static voltage
control)
0.0 55.0 110.0 165.0 220.0
Display voltage
(static current
control)
0.0 12.5 25.0 37.5 50.0
Type Description
MAN
INT Adjust output slope with the inside VR
MAN
EXT Adjust output slope with an outside VR
AUTO No function
①RUN lamp: Turns ON in RUN, turns OFF in STOP
②AUTO lamp: Turns ON in AUTO, turns OFF in MANUAL
③EVT lamp
: Turns ON in Digital Input (DI-1 to 3) ON, flashes in alarm output
④R, S, T lamp
: Turns ON differently by displayed value in display part
Ex) When R, S turn ON, it displays voltage between R-S line
⑤Display part
: Displays selected display value content in RUN mode,
displays parameter and set value in SET mode
⑥V, A lamp
: V lamp turns ON when displaying voltage,
A lamp turns ON when displaying current,
V, A lamps turn ON when displaying power,
V, A lamps turn OFF when displays resistance and input
value
⑦Bar display
: Turns ON as 0 to 100% ratio for selected display value
⑧key
: Used to enter parameter mode, monitoring mode and to
move between parameters
⑨, key: Used to move setting modes and to set parameters.
⑩key: Used to return to RUN mode from SET mode
<1-phase> <3-phase>
①①④②②③③
⑤
⑧
⑥
⑦
⑩⑩
⑨
⑦
⑥
MAN
MAN
Part descriptions
Control input

Digital Thyristor Unit
E-11
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■Soft Start [
ST-T
ST-T ]
■Start limit [
S-LM
S-LM ] and start limit time [
S-LT
S-LT ]
■Output slope manual adjustment [
A-GA
A-GA ]
■BASE-UP [
B-UP
B-UP ]
When controlling the load which has inrush current
(platinum, molybdenum, tungsten, infrared lamp, etc)
in power ON, or when control input changes rapidly, it
prevents the load to increase output gradually within the
set time. Set the time for soft start.
Regardless of control method setting (phase control or
cycle control), it operates as phase control.
Set the time to reach output from 0 to 100%.
It operates when it is RUN mode from STOP status after
supplying power or reset. When it reaches to the target
output value, soft start function ends.
Soft start set time (t) is the time up to 100% increase of
output applied to load. When the final target output value
is 50%, taken time to reach is t/2.
Reaching time to the final target output value = Target
output (%)× t
※Ex) SOFT START sec., final target output : 80%
0.8×25 = 20sec
•Set range : 0 to 100 sec. (0 sec.: not using this function)
When power is ON, changing to RUN status from STOP
status, or alarm reset, set limit output value and time to
prevent the inrush current or error current.
Regardless of control method setting (phase control or
cycle control), it operates as phase control.
•Set range for start limit: 0 to 110% of output
•Set range for start limit time : 0 to 100 sec.
(0 sec.: not using this function)
This function is to adjust manually (inside or outside VR)
output value ratio for control input.
When AUTO operation and output slope manual
adjustment[ A-GA] is set as ON, [ SLOP] is not able to
set.
It displays slope value by the inside or outside VR input.
This function is to add base-up set value to input signal. It
is available only when output low-limit value is 0%.
It is limited by start limit value at initial start.
•Set range : BASE-UP SV(%) < Output high-limit value
•Output value for BASE-UP setting
: Input(%)×Slope value+ BASE-UP SV
■Output slope setting [
SLOP
SLOP]
This function is to set output changed ratio by control input
from 0.00 to 1.00 range.
•Output value when setting slope : Input(%)×Slope value
Output slope manual adjustment [ A-GA] as ON
: Set output slope by the inside 3-level slide switch
Type Description
MAN
INT Adjust output slope with the inside VR
MAN
EXT Adjust output slope with an outside VR
AUTO No function
MAN
MAN
BASE-UP SV(%)
Control input signal(%)
Output(%)
100% of inside or
outside VR
50% of inside or
outside VR
Control input signal(%)
Output(%)
Functions
Output(%)
Time
SOFT START set time
When output applied to load is 100%,
When output applied to load is 50%,
• A : SOFT START function ends
• B : SLOW UP function ends
• C : SLOW DOWN function ends
Output(%)
Start
limit
SOFT START set time
Start limit set time
Time
SLOW UP set time
SLOW DOWN set time
Output(%)
Control input signal(%)
Output slope
value(%)

DPU Series
E-12
■SLOW UP / SLOW DOWN [
UP-T
UP-T/
DN-T
DN-T ]
It is same purpose as soft start function. Soft start starts
only one time at first but slow up/slow down function start
during operation.
Regardless of control method setting (phase control or
cycle control), it operates as phase control.
When it reaches to the target output value, slow up/slow
down functions end.
•Set range : 0 to 999 sec. (0 sec.: not using this function)
•A : SOFT START function ends
•B : SLOW UP function ends
•C : SLOW DOWN function ends
■Output high/low limit [
H-OL
H-OL/
L-OL
L-OL]
■DI(Digital Input)
●RESET [RST]
This function is to limit output range to protect load.
•Set range : 0 to 110%
(Output low limit value < Output high limit value)
After selecting RESET function, turn digital input
ON(close) and open, this unit resets and re-starts.
Below functions are available by terminal input.
Digital input has five terminals; AUTO/MANUAL terminal,
RUN/STOP terminal, and DI-1 to 3 terminals.
Select the function for each input terminal of DI-1 to 3.
AUTO/MANUAL selection digital input
[no. 7 and 11 terminals]
RUN/STOP switching digital input
[no. 6 and 11 terminal]
DI-1 to DI-3(no. 1 to 3 of digital input ) terminal
[no. 8, 9, 10 and 11(COM) terminal]
Select AUTO(close)/MANUAL(open) input by terminal
input.
AUTO mode controls output according to control input
as analog input (voltage, current) or ON/OFF input
(including SSR pulse input).
MANUAL mode controls according to control input as
the inside VR adjustment or an outside VR adjustment.
When selecting AUTO (close), the front AUTO lamp
turns ON or selecting MANUAL(open), the front AUTO
lamp turns OFF.
Select RUN(close)/STOP(open) operation status by
terminal input.
RUN mode operates as the set contents by control
input. STOP mode is standby status.
When selecting RUN(close), the front RUN lamp turns
ON or selecting STOP(open), the front RUN lamp turns
OFF.
Select the each function for each digital input at
parameters [ DI-1
, DI-2 , DI-3 ].
When setting ON(close) to DI input, the front EVT lamp
turns ON or setting OFF(open), the front EVT lamp
turns OFF.
As below, there are 6 functions to select.
※SP-M is available only in D1-1.
■Current limit [
C-LM
C-LM ]
It operates when normal, static voltage, static current
mode of phase control.
When using the load which has high inrush current, it
restrains the current to protect thyristor.
Especially, in case of voltage feedback, only voltage
current, it may over the rated current of thyristor because
current flows by resistance value of the load. To prevent
over the rated current, limit the current.
•Set range : 0 to 110% of rated current
Output(%)
SOFT START set time
Time
SLOW UP set time
SLOW DOWN set time
Overcurrent
alarm
Output high-limit: H-OL
Output low-limit :
L-OL
Control input signal(%)
Output(%)
Current
alarm
Output
current
(%)
Current limit set position
(0 to 110%)
Current limit
set point
Over current
alarm point
Time
Select
function No. 8 and 11 terminal
ON (CLOSE)
Executes
selected
function
No. 9 and 11 terminal
ON (CLOSE)
No. 10 and 11 terminal
ON (CLOSE)

Digital Thyristor Unit
E-13
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■Proportional and integral constant set of
feedback control
●HOLD [HOLD]
●Single SP [SP-1,SP-2,SP-3]
●Multi SP [ SP-M]
Set [SP-1, SP-2, SP-3] to each digital input for
output to reach to the relevant SP.
It is available to set individually at [DI-1, DI-2,
DI-3], and duplicated setting is allowed.
When setting SP-1,, SP1 is displayed in operating
mode, same as SP-2 and SP-3.
When this function is not set, the parameters to set
SP in operating mode are not displayed.
It is available to set total 6 SPs and to control output
depending on 3 digital inputs' setting.
This function is selectable only in [DI-1]. When
selecting [SP-M] at [DI-1], [DI-2, DI-3]
parameters are not displayed.
When selecting [SP-M] at [DI-1], 6 parameters to
set SPs are displayed in operating mode.
( SP-1, SP-2, SP-3, SP-4, SP-5, SP-6)
Proportional Integral Control:
This is the combination of proportional control and integral
control. Proportional control operates soft control without
overshoot and hunting for the set value. Integral control
modifies offset automatically to reach the set value stably.
The optimal values of proportional constant and integral
constant are set as factory defaults. When changing
proportional constant and integral constant, it may cause
response delay in feedback control or overshoot or
hunting.
After selecting HOLD function and digital input is
ON(close), output and display value of this unit is
hold. (it operates hold when digital input maintains
ON(close) status.)
Proportional constant set [ P]
It compensates error from the target value
proportionally.
If proportional constant value is small, response is fast
and it may cause overshoot or hunting. If proportional
constant value is big, response is slow.
•Set range : 0(0%) to 2000(100%)
DI-1 DI-2 DI-3 Operating Mode
SP value set parameter
SP-1 SP-2 SP-3
SP-1(ex:20%)
SP-2(ex:40%)
SP-3(ex:60%)
※Ex)
※Ex)
DI-1 DI-2 DI-3 Operating Mode
SP value set
parameter
A○××
SP-1 (ex:20%)
B× ○×SP-2 (ex:40%)
C○○×SP-3 (ex:60%)
D× × ○SP-4 (ex:80%)
E○×○SP-5 (ex:100%)
F× ○○
SP-6 (ex:0%)
G○○○ -
※○: Close, ×: Open
Integral constant set [ I]
※
P, Iparameters are displayed when control mode is
static voltage, static current, static power mode in phase
control.
It compensates cumulative error from the target value.
The set integral constant is the time when proportional
value and integral value are equal.
If integral constant value is small, response is fast and
it may cause overshoot or hunting. If integral constant
value is big, response is slow.
•Set range : 0.1 to 999.9 sec.
■Input correction [
IN-B
IN-B]
It compensates the offset between actual input value and
measured input value.
•Set range : -99.9 to 99.9%
※Ex) Input type is 4-20mA,
When 4mA is applied and the input monitor value
displays, set [IN-B] as -)5 and the input monitor
value displays as 0.0%.
• A : When DI-1 is ON
• B : When DI-2 is ON
• C : When DI-3 is ON
Output
(%)
※A, B, C, D, E, F
: Close/Open status of Digital Input
Output
(%)
Actual input signal(%)
Input corrected signal(%)
Output
input signal
(%)
Actual input signal (%)

DPU Series
E-14
■Alarm
■Full load auto recognition [
F-LD
F-LD]
■Lock [
LOCK
LOCK]
When operating load recognition function, it outputs 100%
for 3 sec. Do not use this unit to the device which has
problem 100% output of load.
Set [F-LD] as ON in setting mode 1 [ ST-1] group and
press the key, load auto recognition function operates.
According to secular changes of the load, execute this
function regularly.
※Be sure that when auto recognition starts, it operates
100% output for 3 sec.
※Caution
Do not execute this function as ON without profession’s
consultations. When executing this function, voltage,
current outputs fully. Be sure that it may cause damage
to the load.
When using special load using low voltage and high
current such as (super)tantalum, SiC, molybdenum,
tungsten, etc, it may cause heater break alarm [ H-BK].
This alarm does not have problem in operation but it
occurs when it does not detect the load when using as
low voltage. Set the below notes to clear the alarm.
Note>When using special load such as (super) tantalum,
SiC, molybdenum, tungsten, H-BK alarm clear
method:
·Set load resistance display method [DRES] as
UP in setting mode 1 [ ST-1].
·Set heater break alarm value [ HB-V] as 500 in
setting mode 2 [ ST-2].
This function is to limit parameter set value check and
change.
Set this parameter lock function to enter setting mode1.
When setting this parameter lock as LOC2 or LOC3, only
parameter lock is displayed in setting mode 1.
●:Enable to check and set, ◐:Enable to check/Disable to set, ○: Disable to check
Parameter OFF LOC1 LOC2 LOC3
Operating Mode set group ●●●◐
Setting Mode 2 set group ●●◐◐
Setting Mode 1 set group ●◐○○
Alarm Parameter Operation Clear alarm
Overcurrent alarm O-C
Output
STOP
(SCR
OFF)
·Re-supply the
power.
·RESET( key)
·Switch to STOP
mode
Overvoltage alarm O-V
Fuse break alarm FUSE
Heatsink overheat alarm TEMP
Element error alarm SCR
Current alarm CAL Continues
operation
Automatically
cleared within
the set range
Heater break alarm HBK
■Bar Graph display value content selection [
BAR
BAR]
■Load resistance display method [
DRES
DRES]
You can select display value content for the bar graph.
•Selectable display value content :
load voltage [ U-V, V-W, W-U], load current [ LA-U,
LA-V, LA-W], power [ KW], control input [ REF]
This function is for display load resistance [ RES] into a
percentage in monitoring mode when disconnecting the
parallel load. You can select this value as increase rate of
load resistance [UP] or as decrease rate of number of loads
[ DOWN].
※Decrease rate of number of loads [ DOWN] displays
correct decrease rate only when the connected each load
resistance is same.
Ex)Each of R1to R10 is 10Ωand load resistance (R) is 1Ω,
When disconnecting R1to R5,
①Increase rate of load resistance[ UP]
It is based on 100% of load resistance (R), 1 Ω. When
disconnected R1to R5, load resistance is 2 Ωand load
resistance [ RES] in monitoring mode displays 200%.
②Decrease rate of number of loads [ DOWN]
It is based on 100% of 10 loads(R1to R10). When
disconnected R1to R5, the number of load are 5(R6to
R10) and load resistance [ RES] in monitoring mode
displays 50%.
■Input slope correction [
SPAN
SPAN] ■Heater break alarm [
H-BK
H-BK]
■Display value content selection [
D1SP
D1SP]
It compensates the gain of the measured 100% input for
actual 100% input value.
•Set range : -99.9 to 99.9%
※Ex) Input type is 4-20mA,
When 20mA is applied and the input monitor value
displays 99.5%, set [SPAN] as )5 and the input
monitor value is 100.0%.
The principle of heater break alarm is load recognition function.
It measures load resistance and when load resistance value is
higher than the break alarm SV, this alarm operate regardless
of output.
You can select display value content for the display part in
RUN mode.
•Selectable display value content :
load voltage [ U-V, V-W, W-U], load current [ LA-U,
LA-V, LA-W], power [ KW], control input [ REF]
Actual input signal(%)
Input corrected signal(%)
Output
input signal
(%)
Actual input signal (%)
RR1R2R9R10

Digital Thyristor Unit
E-15
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
)00
)0
)0
)0
)0
)0
)0
Monitoring mode can monitor measured several physical quantities of this unit, not set parameters.
■3-phase
■1-phase
※1. P: Press any key among , .
※To return RUN mode, press the key at any parameter, or not to operate any keys
in 30sec.
For ON/OFF input, or SSR pulse input, it displays 0 or 100.
• Set range : Within 0.0 to 100.0%
Monitors measured voltage at load within the rated voltage range.
Monitors measured current at load within the rated current range.
Monitors measured power at load within the rated power range.
Displays measured resistance at load for initial set resistance as
percentage
Displays frequency of power
IN 10)0
LD-V 22)0
LD-A 5)0
KW 1)00
RES 50
FREQ 6)00
P
P
P
P
P
P
Input value
Load voltage
Load current
Load power
Load
resistance
Power
frequency
V
V
A
A
※1
For ON/OFF input, or SSR pulse input, it displays 0 or 100.
• Set range : Within 0.0 to 100.0%
Monitors measured voltage at load within the rated voltage range.
Monitors measured current at load within the rated current range.
Monitors load power output at 3-phase.
Displays LLLL, 10 to 500%, HHHH.
Displays frequency of power within 45.0 to 65.0Hz range
V
V
V
A
A
A
IN )0
U--V
V--W
W--U
LA-U
LA-V
LA-W
KW
RES )0
FREQ )00
P
P
P
P
P
P
P
P
P
P
Input value
Voltage between
U-V line
Voltage between
V-W line
Voltage between
W-U line
U-phase
load current
V-phase
load current
W-phase
load current
Load power
Load resistance
Power frequency
V
A
※1
Monitoring mode
RUN
mode
RUN
mode
※1. P: Press any key among , .
※To return RUN mode, press the key at any parameter, or not to operate any keys
in 30sec.
Press key
for 1 sec.
Press key
for 1 sec.

DPU Series
E-16
■Operating Mode [ OP]
Displays operating mode.
Set soft start time.
• Set range : 0 to 100sec
Set limit output value.
• Set range : 0 to 110%
Set start limit time.
• Set range : 0 to 100sec
Set output slope manual adjustment.
Set output change ratio by control input.
• Set range : 0.00 to 1.00%
※Not displayed when output slope manual adjustment [ A-GA] is ON.
Set base-up value.
• Set range : 0 to 100%
Set output low-limit.
• Set range : 0 to 110%
Set output high-limit.
• Set range : 0 to 110%
Set current limit value.
• Set range : 0 to 110%
• Set range : 0 to 100%
※Displayed only when DI-1 to DI-3 of ST-1 mode is set SP-M or SP1 to SP3.
Set proportional constant.
• Set range : 1 to 2000
※Displayed only for static voltage, static current, static power in phase control.
Set integral constant.
• Set range : 0.1 to 999.9
※Displayed only for static voltage, static current, static power in phase control.
• Set range : 0 to 100%
※Displayed only when DI-1 of ST-1 is set SP-M.
Set slow-up time.
• Set range : 0 to 999sec
※Not displayed when C-MD mode is set as cycle control.
Set slow-down time.
• Set range : 0 to 999sec
※Not displayed when C-MD mode is set as cycle control.
OP
H-OL
50ST-T
C-LM
S-LM
SP1
S-LT
SP2
A-GA
SP3
SLOP
SP4
B-UP
SP5
UP-T
SP6
DN-T
P
L-OL
I
P
Operating mode
Soft start time
Start limit
Start limit time
Output slope
Base up
Slow up
Slow down
Output low-limit
value
Output high-limit
value
Current limit
Setting point 1
Setting point 2
Setting point 3
Setting point 4
Setting point 5
Setting point 6
Proportional
constant
Integral constant
Output slope
manual adjustment
※1
OFFON
Parameter mode
RUN
mode
Press key
for 3 sec.
※1. P: Press any key among , .
※To return RUN mode, press the key at any parameter, or not to operate any keys in 30sec.
※: This parameter may or may not appear, depending on the other parameter settings.

Digital Thyristor Unit
E-17
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■Setting Mode 1
Displays setting mode 1.
Select input type.
Select control method.
※Variable cycle control[ V-CY] is only for 1-phase model.
Select digital input.
※Multi SP function [ SP-M] is available only in DI-1.
Set input correction value.
• Set range : -99.9 to 99.9%
Set input slope correction value.
• Set range : -99.9 to 99.9%
Select display value content.
Select bar graph display content.
Select display method of load resistance value.
Select full load auto recognition enable/disable.
Set communication address.
• Set range : 1 to 99
Select communication speed
(baud rate).
Select lock function.
Select communication write enable/disable.
(ENA: Enables to write, DISA:Disables to write)
OP ST-1
DRES
4-20IN-P P
F-LD
C-MD
ADDR
DI-1
BAUD
DI-2
COMW
DI-3
LOCK
IN-B
SPAN
DISP
BAR
Operating Mode Setting Mode 1
Control input type
Control method
DI-1 function
DI-3 function
DI-2 function
Input correction
Input slope correction
Display value content
Bar content
Load resistance
display method
Full load auto recognition
Com. address
Com. speed
Com. write
Lock
ONOFV-CYF-CYW-FBC-FBV-FBPA
HOLDRSTSP-3SP-2SP-1SP-M
REFKWAMPLD-V
REFKWAV
3841929648
LOC3LOC2LOC1OFF
UPDOWN
ONOFF
DISAENA
※Displayed only for RS485 communication option model.
※1
RUN
mode
Press key
for 3 sec.
※1. P: Press any key among , .
※If there is no operation any keys in 30sec., it returns to RUN mode.
※Press the key when entering ST-1 setting mode in any parameters, it moves to ST-1.
Press the key once more, it returns to RUN mode.
※When setting [LOCK] as LOC2 or LOC3, and entering ST-1, it displays only [ LOCK] parameter.
※: This parameter may or may not appear, depending on the other parameter settings.

DPU Series
E-18
■Setting Mode 2
Set alarm value for overcurrent.
• Set range : 0 to 120%
Select alarm value for overvoltage.
• Set range : 0 to 120% for 1-phase model, 0 to 300% for 3-phase
Set alarm delay time for overcurrent.
• Set range : 0 to 100sec
Set alarm delay time for overvoltage.
• Set range : 0 to 100sec
Set alarm value for heater break.
• Set range : 10 to 500%
Select heater break alarm channel.
Select overcurrent, current alarm channel.
Select each alarm channel.
OP ST-2 ST-1
HEAT
120OC-V P
SCR
HB-V
OC-T
HB-A
OC-A
C-AL
OV-V
OV-T
OV-A
FUSE
Operating Mode Setting Mode 2Setting Mode 1
Overcurrent
alarm value
Element error
alarm CH
Heat sink overheating
alarm CH
Fuse break alarm CH
Overvoltage alarm CH
Overvoltage delay time
Overvoltage
alarm value
Current alarm CH
Overcurrent alarm CH
Overcurrent
delay time
Heater break
alarm value
Heater break
alarm CH
AL2AL1NON
AL2AL1NON
AL2AL1NON
※1
Displays setting mode 2.
RUN
mode
Press key
for 3 sec.
※1. P: Press any key among , .
※If there is no operation any keys in 30sec., it returns to RUN mode.
※Press the key when entering ST-2 setting mode in any parameters, it moves to ST-2.
Press the key once more, it returns to RUN mode.
※When setting [LOCK] as LOC2 or LOC3, and entering ST-2, it displays only [ LOCK] parameter.

Digital Thyristor Unit
E-19
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
Parameter Default Parameter Default Parameter Default Parameter Default
IN-P 4-20 IN-B 00)0
BAR
V COMW ENA
C-MD PA SPAN 00)0 U-V LOCK OFF
DI-1 SP-M
DISP
LD-V F-LD OFF
DI-2 SP-1 U-V ADDR 0001
DI-3 SP-1 DRES DOWN BAUD 384
Parameter Default Parameter Default Parameter Default Parameter Default
ST-T 0000 B-UP 00)0 C-LM 11)0 SP5 00)0
S-LM 11)0 UP-T 0003 SP1 00)0 SP6 00)0
S-LT 0000 DN-T 0003 SP2 00)0 P 0150
A-GA OFF L-OL 00)0 SP3 00)0 I 02)0
SLOP !000 H-OL 11)0 SP4 00)0
Parameter Default Parameter Default Parameter Default Parameter Default
OC-V 11)0 C-AL AL2 OV-A AL1 SCR AL1
OC-T 0005 OV-V 11)0 FUSE AL1 HB-V 01)0
OC-A AL1 OV-T 0005 HEAT AL1 HB-A AL2
■Operating Mode
■Setting Mode 1
■Setting Mode 2
(1-phase)
(1-phase)
(3-phase)
(3-phase)
■Communication specification
■Function code format
Item Specifications
Com. method RS485 2-wire half duplex
Com. speed 4800, 9600, 19200, 38400bps
(default 38400)
Data length 8Bit
Stop Bit 1Bit
Parity Even
Max. connections 32 units
Protocol MODBUS 1.1 RTU
Function code 3(0×03) = Read holding resisters
(Master →Slave)
0×01 0×03 0×00 0×00 0×00 0×16 ×× ××
Add. Com-
mand
Start add. Number of data CRC 16
High Low High Low High Low
(Slave →Master)
0×01 0×83 ×× ×× ××
Address Response
command
Exception
code CRC 16
(Slave →Master)
0×01 0×03 0×10 0×03 0×E8 ... 0×03 0×E8 ×× ××
Add.
Response
command
Number
of data
1st data ... 16th data CRC 16
High Low ... High Low High Low
●Request
●Error
●Response
Function code 4(0×04) = Read input resisters
Function code 6(0×06) = write single resisters
(Master →Slave)
0×01 0×04 0×00 0×00 0×00 0×10 ×× ××
Add. Com-
mand
Start add. Number of data CRC 16
High Low High Low High Low
(Master →Slave)
0×01 0×06 0×00 0×00 0×03 0×E8 ×× ××
Add. Com-
mand
Address Number of data CRC 16
High Low High Low High Low
(Slave →Master)
0×01 0×06 0×00 0×00 0×03 0×E8 ×× ××
Add.
Response
Command
Address Data CRC 16
High Low High Low High Low
(Slave →Master)
0×01 0×84 ×× ×× ××
Address Response
command
Exception
code CRC 16
(Slave →Master)
0×01 0×86 ×× ×× ××
Address Response
command
Exception
code CRC 16
(Slave →Master)
0×01 0×04 0×10 0×03 0×E8 ... 0×03 0×E8 ×× ××
Add.
Response
command
Number
of data
1st data ... 16th data CRC 16
High Low ... High Low High Low
●Request
●Request
●Error
●Error
●Response
●Response
Factory default
Communications

DPU Series
E-20
■Address mapping table
Input resisters [1-phase]
Function code 16(0×10) = write multiple resisters
(Master →Slave)
0×01 0×10 0×00 0×00 0×00 0×10 0×20 ×× ××
Add. Com-
mand
Start add. Number of
data Number
of byte
CRC 16
High Low High Low High Low
(Slave →Master)
0×01 0×10 0×00 0×00 0×03 0×E8 ×× ××
Add.
Response
command
Start add. Number of data CRC 16
High Low High Low High Low
(Slave →Master)
0×01 0×90 ×× ×× ××
Address Response
Command
Exception
code CRC 16
●Request
●Error
※Exception code
·0×01 : Not supported command code
·0×02 : Starting address of required data and transmittable address
are different.
·0×03 : The number of required data is over than the number of
transmittable data.
·0×04 : Transmittable data does not process properly.
●Response
Address Item Factor
30001(0000) Output voltage *0.1
30002(0001) Load current *0.1
30003(0002) Power *0.1
30004(0003) Load resistance *0.1
30005(0004) Power frequency *0.01
30006(0005) W-phase load current display(Arms) *0.1
30101(0064) Product No. H 00
30102(0065) Product No. L 00
30103(0066) Hardware version 10
30104(0067) Software version 10
30105(0068) Model name 1 "DP"
30106(0069) Model name 2 "2-"
30107(006A) Model name 3 "00"
30108(006B) Model name 4 " "
30109(006C) Model name 5 " "
30110(006D) Model name 6 " "
30111(006E) Model name 7 " "
30112(006F) Model name 8 " "
30113(0070) Model name 9 " "
30114(0071) Model name 10 " "
30115(0072) Reserved Reserved
30116(0073) Reserved Reserved
30117(0074) Reserved Reserved
30118(0075) Coil start address 0
30119(0076) Coil quantity 0
30120(0077) Input start address 0
30121(0078) Input quantity 0
30122(0079) Holding reg start address 0
30123(007A) Holding reg quantity 32
30124(007B) Input reg start address 0
30125(007C) Input reg quantity 5
Input resisters [3-phase]
Address Item Factor
30001(0000) Load voltage between U-V line display
(Vrms) *0.1
30002(0001) Load voltage between V-W line
display(Vrms) *0.1
30003(0002) Load voltage between W-U line
display(Vrms) *0.1
30004(0003) U-phase load current display(Arms) *0.1
30005(0004) V-phase load current display(Arms) *0.1
30006(0005) W-phase load current display(Arms) *0.1
30007(0006) Power display(kw) *0.01
30008(0007) Load resistance display
(% display for initial load) *0.1
30009(0008) Power frequency display *0.01
30101(0064) Product No. H 00
30102(0065) Product No. L 00
30103(0066) Hardware version 10
30104(0067) Software version 10
30105(0068) Model name 1 "DP"
30106(0069) Model name 2 "2-"
30107(006A) Model name 3 "00"
30108(006B) Model name 4 " "
30109(006C) Model name 5 " "
30110(006D) Model name 6 " "
30111(006E) Model name 7 " "
30112(006F) Model name 8 " "
30113(0070) Model name 9 " "
30114(0071) Model name 10 " "
30115(0072) Reserved Reserved
30116(0073) Reserved Reserved
30117(0074) Reserved Reserved
30118(0075) Coil start address 0
30119(0076) Coil quantity 0
30120(0077) Input start address 0
30121(0078) Input quantity 0
30122(0079) Holding reg start address 0
30123(007A) Holding reg quantity 32
30124(007B) Input reg start address 0
30125(007C) Input reg quantity 5

Digital Thyristor Unit
E-21
A. Recorder
B. Indicator
C. Converter
D. Controller
E. Thyristor
unit
F. Temp.
sensor
G. Pressure
transmitter
H. Temp.
transmitter
I. Thermometer
J. Pressure
gauge
K. Accessories
DPU
DPUS
■Address mapping table
Holding resisters [1-phase]
Address Item Factor
40001(0000) Reference value * 0.1(1 to 1000)
40002(0001) Start Time 0 to 99
40003(0002) Start limit * 0.1(1 to 1000)
40004(0003) Soft Start Time 0 to 99
40005(0004) Output high-limit limit * 0.1(1 to 1100)
40006(0005) Output low-limit limit * 0.1(1 to 1000)
40007(0006) Remote Sp1 value * 0.1(1 to 1000)
40008(0007) Remote Sp2 value * 0.1(1 to 1000)
40009(0008) Remote Sp3 value * 0.1(1 to 1000)
40010(0009) Remote Sp4 value * 0.1(1 to 1000)
40011(000A) Remote Sp5 value * 0.1(1 to 1000)
40012(000B) Remote Sp6 value * 0.1(1 to 1000)
40013(000C) Slow up time 0 to 99
40014(000D) Slow stop time 0 to 99
40015(000E) CL value * 0.1(1 to 2000)
40016(000F) OC value * 0.1(1 to 1100)
40017(0010) OC time 0 to 99
40018(0011) OV value * 0.1(1 to 1100)
40019(0012) OV time 0 to 99
40020(0013) Load detector alarm value * 0.1(1 to 2000)
40021(0014) Display content selection 0 to 3
40022(0015) Bar display mode 0 to 3
40023(0016) Control integer KP value 0 to 9999
40024(0017) Control integer KI value * 0.1(1 to 999.9)
40025(0018) Output control mode 0 to 6
40026(0019) Event input 1 mode 0 to 4
40027(001A) Event input 2 mode 0 to 4
40028(001B) Event input 3 mode 0 to 4
40029(001C) Auto ref input selector 0 to 3
40030(001D) Load resistance display method 0 to 1
40031(001E) Operation status
0×0000
Bit0...
Bit1...
Bit2...
Bit3...
Bit4...
Bit5...
Bit6...
Bit7...
Bit8...
Bit9...
Bit10...
Bit11...
Bit12...
Bit13...
Fault
I-OC
Over current
Over volt
Over temp
Fuse cut
Phase loss
Load open
Over SCR
Over Freq
Run/Stop
Auto/Manual
EMS Power
Not Load
40032(001F) Output slope(%) 0 to 2
40033(0020) Output for 0% input(%) 0 to 2
40034(0021) Input correction 0 to 2
40035(0022) Input slope correction 0 to 2
40036(0023) Overcurrent alarm output 0 to 2
40037(0024) Current alarm output 0 to 2
40038(0025) Overvoltage alarm output 0 to 2
40039(0026) Fuse break alarm output 0 to 2
40040(0027) Frequency error alarm output 0 to 2
40041(0028) Heatsink overheat alarm output 0 to 2
40042(0029) Element error alarm output 0 to 2
40044(002A) Heater break alarm output 0 to 2