Autonics SPR1 Series User manual

I-30
SPR1 Series
LED Display, Single-Phase, Slim, Power Controller
Manual
Ordering Information
● For the detail information and instructions, please refer to user manual for communication, and be sure to follow cautions written in the
technical descriptions (catalog, homepage). Visit our homepage (www.autonics.com) to download manuals.
● User manual for communication manual describes for RS485 communication (Modbus RTU protocol) and parameter address map data.
Comprehensive Device Management Program (DAQMaster)
※1: Product is not equipped with a rapid fuse inside. Install the suitable fuse for rated load current of the model separately.
(The performance of the product is guaranteed only when using the fuse provided by us.)
Control phase
Item
Rated load current
Rated load voltage
Fuse
Option output
Feedback
control
NNon-fuse※1
FFuse
NNormal control
FNormal/constant current/constant voltage
/constant power control
NAlarm output
TAlarm+RS485 comm. output
25 25A 70 70A
35 35A 100 100A
50 50A 150 150A
1110VAC
2220VAC
3380VAC
4440VAC
1Single-phase
SPR Solid State Power Regulator (slim type)
1 T FSPR 702 F
● DAQMaster is a comprehensive device management software for setting parameters and monitoring processes.
● Visit our website (www.autonics.com) to download user manual and comprehensive device management program.
< DAQMaster screen >< Computer specication for using software >
Item Minimum specications
System IBM PC compatible computer with Pentium Ⅲ or above
Operations Windows 98/NT/XP/Vista/7/8/10
Memory 256MB+
Hard disk 1GB+ of available hard disk space
VGA Resolution: 1024×768 or higher
Others RS232C serial port (9-pin), USB port
Please read “Safety considerations” in operation
manual before using.
Features
Rene and slim body design
LED display for real time monitoring (control input, load voltage,
load current, load power, load resistance and heatsink temperature)
and checking parameter settings
Stable control by feedback control
(constant current/constant voltage/constant power control)
Communication output model available: RS485 (Modbus RTU method)
Convenient parameter settings via PC (RS485 communication)
: Free download the comprehensive device management program
(DAQMaster)
Various alarm functions (alarm output)
: overcurrent, overvoltage, heatsink overheat, fuse break, SCR error
Easy installation of the bracket
Simple fuse replacement structure for easy maintenance
Highly reliable SCR (IXYS) element

I-31
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Specications
Model SPR1-1 SPR1-2 SPR1-3 SPR1-4
Control phase Single-phase
Rated load voltage
(50/60Hz) 110VACᜠ220VACᜠ380VACᜠ440VACᜠ
Power supply 100-240VACᜠ 50/60Hz
Min. load current 1A
Permissible voltage range 90 to 110% of rated voltage
Power consumption Rated load current 25A/35A/50A: max. 7VA
Rated load current 70A/100A/150A: max. 12VA
Display method 3-digit 7-segment LED
Indicator Operation indicator/Manual control indicator: green LED
Alarm indicator/output indicator/unit (V, A) indicator: red LED
Control method
Phase control: normal control mode, constant current/constant voltage/constant power feedback control mode
Cycle control: xed cycle control mode, variable cycle control mode
ON/OFF control
Applied load Phase control, ON/OFF control: resistance load, inductive load
Cycle control: resistance load
Control input Auto control: DC4-20mA, 1-5VDCᜡ, ON/OFF contact (no-voltage input), pulse voltage (5-12VDCᜡ)
Manual control: outside adjuster (10kΩ), inside adjuster (output limit)
Digital input (DI) RUN/STOP switching, AUTO/MAN switching, RESET
Output Alarm 250VACᜠ 3A, 30VDCᜡ 3A, 1c resistive load
Communication RS485 communication output (Modbus RTU method), max. connection: 31 units
Output range
Phase control: 0 to 98%
Cycle control: 0 to 100%
ON/OFF control: 0%, 100%
Output accuracy
Normal control: within ±10% F.S. of rated load voltage
Constant current feedback control: within ±3% F.S. of rated load current
Constant voltage feedback control: within ±3% F.S. of rated load voltage
Constant power feedback control: within ±3% F.S. of rated load power
Set method By front keys, by communication
Functions
Output limit (OUT ADJ), AUTO/MAN selection, control method selection, RESET, SOFT START, SOFT UP/DOWN,
output high/low limit, input correction, input slope correction, monitoring (control input, load voltage/current/power/
resistance, power supply frequency, heatsink temperature)
Alarm Overcurrent alarm, overvoltage alarm, fuse break alarm, SCR error alarm, heater break alarm, heatsink
overheat alarm
Cooling method Rated load current 25A/35A/50A: natural cooling
Rated load current 70A/100A/150A: forced air cooling (with the cooling fan)
Insulation resistance Over 200MΩ (at 500VDC megger)
Dielectric strength 2,000VAC 50/60Hz for 1 min (between input terminals and power terminals)
Output leakage current Max. 10mArms
Noise immunity ±2kV the square wave noise (pulse width: 1㎲) by the noise simulator
Memory retention Approx. 10 years (when using non-volatile semiconductor memory type)
Vibration Mechanical 0.75mm amplitude at frequency of 5 to 55Hz in each X, Y, Z direction for 2 hours
Malfunction 0.5mm amplitude at frequency of 5 to 55Hz in each X, Y, Z direction for 10 min
Environ
ment
Ambient temp. -10 to 55℃, storage: -20 to 80℃
Ambient humi. 35 to 85%RH, storage: 35 to 85%RH
Accessory 11-pin connector
Approval ᜢ
Weight※1
Rated load current 25A/35A/50A: approx. 1.6kg (approx. 1.3kg)
Rated load current 70A: approx. 1.65kg (approx. 1.35kg)
Rated load current 100A/150A: approx. 3.2kg (approx. 2.8kg)
※1: The weight includes packaging. The weight in parenthesis is for unit only.
※Environment resistance is rated at no freezing or condensation.

I-32
SPR1 Series
Unit Description
①
⑧
⑨
⑦
⑤
③
②
⑫
R U
⑫
⑬
S
⑩
⑪
⑥
④
① Bracket
② Indicator
Indicator Color Function
RUN Operation indicator Green LED Turns on in the RUN mode.
MAN Manual control indicator Green LED Turns on when adjusting load output in the manual control mode.
ALM Alarm indicator Red LED Flashes in alarming status.
OUT Output indicator Red LED Turns on when load control outputs.
③ Display part: Displays settings of the front display [ DIS] parameter in RUN mode, and displays parameter and setting value in setting mode.
④ Unit indicator ( : Light ON/ : Light OFF)
Indicator Display
V A
Resistance, load
Voltage
Current
Power
⑤ key: Enters parameter group, returns to RUN mode, moves parameters, and saves the setting value.
⑥ Setting value adjustment key: Enters SV setting mode and move digits.
⑦ Output limit adjuster (OUT ADJ): Limits output from 0 to 100%.
⑧ 11-pin connector terminal
⑨ Terminal cover
⑩ Alarm output and power input terminals
⑪ R, S, U load output terminals
⑫ Cooling fan: For models with the rated load current of 70A/100A/150A, a cooling fan is attached.
⑬ Heatsink
Wire Specication by Load Current
Rated load current
Wire specication
Alarm output/
power input
Load output
S R, U
25A/35A/50A/70A AWG 18 to 14 AWG 18 to 14 AWG 13 to 4
100A/150A AWG 4 to 2/0

I-33
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Dimensions
Rated load current 25A/35A/50A Spacing
Rated load current 70A
Rated load current 100A/150A
80
71 250.1
238
21.3
25 187
252.6
40 184.4
4-Ø6
80°
6.8
55
48 223
196
21.3
15
155
212.6
30 168.5
80°
4-Ø6
6.8
4-Ø6
55
48 223
181
21.3
155
197.6
30 168.5
80°
6.8
100
100100
Panel
4-Ø6
50
Panel
※
When installing multiple power controllers, please
keep space at least 50mm in horizontal and
100mm in vertical between power controllers for
heat radiation.
While supplying power to the load or right
after turning off the power of the load, do
not touch the body and heatsink.
Failure to follow this instruction may result
in a burn due to the high temperature.
High Temperature Caution
(unit: mm)

I-34
SPR1 Series
Connections
Load output
※1: This is only for models with RS485 communication output (SPR1- T ).
※2: When connecting noise lter and capacitor, it is appropriate for EMC.
CAP : Rated load voltage 110VAC-220VAC → 1uF/250VAC
: Rated load voltage 380VAC-440VAC → 0.47uF/500VAC
※Tighten the terminal screw with the below tightening torque.
Rated load current Specication Alarm output/
power input
Load output
S R, U
25A, 35A, 50A, 70A Screw M3 M3 M6
Tightening torque 0.5N.m 0.5N.m 5.5 to 6.0N.m
100A, 150A Screw M3 M3 M8
Tightening torque 0.5N.m 0.5N.m 6.5 to 7.0N.m
<Crimp terminal>
a
b
c
Terminal
type
Terminal
number abc
Input
(11-pin) 1 to 11 6 to 7 Max. 1.5 Max. 3.5
※Use crimp terminals or terminals of size specied below.
ab
<Round>
Terminal type a b
Alarm output/power input Min. 3.0 Max. 6.0
Load
output
S Min. 3.0 Max. 8.0
R, U
Rated load current
25A/35A/50A/70A Min. 6.0 Max. 16.0
Rated load current
100A/150A Min. 8.0 Max. 26.0
(unit: mm)
Control input/Comm. output Alarm output/power input
※1
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
VR
ON/OFF
4-20mA
1-5
VDC
RUN/STOP
AUTO/MAN
RESET
RS485
A(+)
B(-)
Alarm Output
(250VAC 3A 1c)
(30VDC 3A 1c)
Resistive Load
100-240VAC
50/60Hz
1 2 3 4 5
N.C. N.O. LCOM N
※2
※2
Noise lter
CAP
R S U
Rapid fuse
Load

I-35
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Derating Curve
Rated load current 25A
Rated load current 70A
Rated load current 35A
Rated load current 100A
Rated load current 50A
Rated load current 150A
25
15
20
10
5
0
010 20 30 40 50 60 70
Ambient temperature [℃]
100
60
80
40
20
0
010 20 30 40 50 60 70
35
21
28
14
7
0
010 20 30 40 50 60 70
150
90
120
60
30
0
010 20 30 40 50 60 70
70
42
56
28
14
0
010 20
30 40 50 60 70 35
50
30
40
20
10
0
010
20 30 40 50 60 70 25
Load current [A] Load current [A] Load current [A] Load current [A] Load current [A] Load current [A]
Ambient temperature [℃]
Ambient temperature [℃]
Ambient temperature [℃]Ambient temperature [℃]
Ambient temperature [℃]

I-36
SPR1 Series
Parameter Group
Monitoring group Parameter 1 group[PR1] Parameter 2 group[PR2]
4 sec 2 sec
3 sec 3 sec
RUN mode
※If there is no key input for 30 sec while setting SV or the parameters, the new settings are ignored, and the unit will return to RUN mode with
previous settings.
※ Hold the key for 3 sec while in setting mode to return to RUN mode.
Measuring range: 0 to rated voltage range[V]
Measuring range: 0 to rated current range[A]
Measuring range: 0 to rated power range[VA]
Measuring range: Percentage [%] of the currently measured resistance value
compared to the set resistance value of full load auto recognition.
Control input
IN 100
※1
Load voltage
L-V 220
L-A 50
Load current
Load power
L-W 10
Load resistance
L-R 50
Heatsink temp.
TMP 25
Power supply
frequency
FRQ 60
※2
Measuring range: 0 to 100%
Measuring range: 0 to 100℃
Measuring range: 50, 60Hz
Monitoring group
※1: : Press any key among , , .
※2: Press the key once after changing the setting value, to save the setting value and move to the next parameter
※ Hold the key for 3 sec to save the setting value and return to RUN mode after changing the setting value.
※ Dotted parameters may not appear by model type or other parameter settings.
※
Displayed only for feedback control models.
RUN mode

I-37
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Parameter 1 group
Parameter 2 group
Setting range: 0 to 100 sec
※ When control method [C-M] is ONF, settings can not be changed.
SOFT START
S-T 000
※1
SOFT UP
U-T 000
D-T 000
SOFT DOWN
Output low-limit value
L-L 000
Output high-limit value
H-L 100
※2
PR1
Setting range
: 0% ≤ Output low-limit value[L-L] ≤ Output high-limit value[H-L] ≤ 100%
Control input DC4-20mA 1-5VDC 5-12VDC ON/OFF contact
INT 420
Control method
C-M
E-R OFF
External output
limit adjuster
1-5 512 ONF
※2
PR2
RS485 comm.
COM
ON
Setting range: Normal control PA, F-C, V-C, ONF
Feedback control
( normal/constant current/constant voltage/
constant power control)
PA, V-F, C-F, W-F, F-C, V-C, ONF
Phase -
Constant
voltage
Phase -
Constant
current
Phase -
Constant
power
Cycle-Variable
V-F C-F W-F
ONFV-C
Cycle-Fixed
F-C
ON/OFF
PA
Phase -
Normal
※1
Setting range: -99 to 99%
Input correction
INB 00
Setting range: -99 to 99%
Input slope correction
SPN 00
RUN mode
RUN mode
3 sec
4 sec
2 sec
3 sec

I-38
SPR1 Series
Setting range: 0 to 120%
Setting range: 1 to 99
Setting range: 0 to 100 sec
Setting range: 0 to 120%
Setting range: 10 to 100%
Setting range: 0 to 100 sec
※
Displayed only formodelswithRS485communicationoutput.
Setting range: 5 to 99ms
Enables Disables
OVV 120
Overvoltage
alarm value
PRT NON
Comm.
parity bit
DIS IN
Front display
HBV 010
Heater break
alarm value
CM.W EN.A
Comm. write
Overvoltage alarm
delay time
OVT 005
Comm. stop bit
STP 2
Overcurrent
alarm value
OCV 120
Comm. address
ADR 001
F-L OFF
Comm. response
waiting time
RW.T 020
Overcurrent alarm
delay time
OCT 005
Comm. speed
BPS 96
DsA
Load voltage Load current Load power
L-V L-A L-W
EVE ODD
1
ON
9,600bps 19,200bps 38,400bps 2,400bps 4,800bps
192 384 24 48
Resistance
and input
※ Displayed only for feedback control models.
Normal control IN
Feedback control
( normal/constant current/constant voltage/
constant power control)
IN, L-V, L-A, L-W
Setting range:
Full load
auto recognition

I-39
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Setting range:
Lock
LOC OFF
Parameter reset
INI NO
LC1
YES
LC2
PR1 PR2
OFF
LC1
LC2
: Available to check/set
: Available to check/Unavailable to set
※
Hold the , , keys for 5 sec, to enter parameter reset parameter.
Control Method
Phase control
Cycle control
Normal control mode
It is general output method to divide control angle proportionally
according to control input signal and to output it.
Constant power feedback control mode
It is proper control method for a heater which resistance value variation
by silicon carbide (SiC) heating is big. It outputs constant power which
is proportion to control input even though load variation and power
supply variation.
Output characteristics is proper 50% of the curve which connects the
point (A) [output voltage 100% × output current 50%] and the point
(B) [output voltage 50% × output current 100%]. The current output
capacity of this unit should be over two times of load capacity.
Constant current feedback control mode
If temperature coefcient of load (platinum, molybdenum, tungsten,
etc) changes 6 to 12 times based on room temperature, it outputs
constant current which is proportion to control input not to change
output voltage for power supply variation, load resistance variation.
Constant voltage feedback control mode
At low temperature coefcient load(iron, chrome, nichrome, etc) of
electrical resistance, it outputs constant output which is proportion
to control input not to change output voltage for power supply
variation, load resistance variation.
Fixed cycle control mode
During xed cycle (60 cycles) of load power, it repeats ON/OFF cycle as constant ratio according to control input signal and controls the
power supplies on the load.
24 Cycles ON 36 Cycles OFF
E.g.) When controlling output as 40%
54 Cycles ON 6 Cycles OFF
E.g.) When controlling output as 90%
100
80
60
40
20
04 8 12 16 20
Power curve
Voltage curve
Input signal [mA]
Output ratio [%]
100 100
75
50
25
0
80
60
40
20
0
0 20 40 60 80 100
Input signal [%]
Output voltage [%]
Output current [%]
812
100
80
60
40
20
00 20 40 60 80 100
20mA
(A)
(B)
16
Input signal [%]
Output voltage [%]
Output current [%]
Input signal [%]
Output voltage [%]
100
0
0
25
20
50
40
75
8060
100
100
80
60
40
20
0
Output current [%]

I-40
SPR1 Series
Variable cycle control mode
Variable cycle control controls required power using min. cycles of load power according to control input signal and optimize temperature
changes of the subject.
This is control method that output is 100% at control input ON (approx. 18mA, min. 4.5VDC), and 0% at control input OFF (approx. 18mA,
max. 4.5VDC).
※
When using ON/OFF control method, output limit, SOFT START, SOFT UP/DOWN, input correction, and input slope correction functions
are not setable.
This function will be [Control input (%) × OUT ADJ (%) = Output]
and it controls the power supplied into the load. Although control
input is 100% (5V or 20mA), the output is the 50% which is
proportioned with OUT ADJ.
※
※This function can not be used for ON/OFF control method.
When the power is supplied, this function is able to protect the load
when it controls load (molybdan, white gold, infrared lamp) with
inrush current or the width of rising temperature in big (SV is big).
SOFT START set time (T) is the required time that output reaches
to 100%, and it is differentiated by OUT ADJ set value.
※
※This function can not be used for ON/OFF control method.
This function is to limit output range to protect load.
Optimal cycle, 10 Cycles
OFF OFF OFFOFFON ON ON
E.g.) When controlling output as 30%
ON/OFF control
OFF
ON 100
0
Control
input
[%]
Functions
Output limit (OUT ADJ) SOFT START [S-T]
Output high limit/low limit value [H-L/L-L]
0
0
50 100
Control input [%]
Setting value = 50%
Setting value = 100%
100
75
50
25
0
0
50 100
10%
80%
7525
100
60
80
40
20
Output high limit: H-L
Output low limit: L-L
0
100
50
t/2 Timet
When output applied to load is 100%,
When output applied to load is 50%,
SOFT START set time
Output [%]
Output [%]
Output
Output [%]

I-41
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Unlike SOFT START which operates only once at supplying power,
this function protects load from the inrush current in the RUN mode.
When reached to the target output value, operation stops.
※
※This function can not be used for ON/OFF control method.
SOFT UP/DOWN [U-T/D-T]
Input correction [INB]
Input slope correction [SPN]
A: SOFT START function nished.
B: SOFT UP function nished.
C: SOFT DOWN function nished.
SOFT START set time SOFT DOWN set time
SOFT UP set time
100
50
0t/2 t Time
It compensates the offset between actual input value and measured
input value.
E.g.) When the input monitoring value is 5% at 4mA in DC4-20mA
control input, setting INB to -5 calibrates the input monitoring
value to 0%.
: Actual input signal (%)
: Input corrected signal (%)
0
050 1007525
100
80
60
40
20
: Actual input signal (%)
: Input corrected signal (%)
Actual input signal [%]
0
050 1007525
100
80
60
40
20
RUN/STOP switching
ON/OFF
RUN/STOP status of the power controller can be
switched with the external RUN/STOP contact.
In the RUN mode, the operation indicator on
the front turns on.
AUTO/MANUAL selection
ON/OFF
Operation mode (auto control/manual control)
of the power controller can be selected with
the external AUTO/MAN contact.
In the manual control mode, the manual
control indicator on the front turns on.
RESET
ON
In the event of system anomalies and
alarms, RESET input restarts the power
controller.(Parameters are not initialized.)
Or, hold the , keys for 2 sec, to operates
RESET.
It compensates the gain of the measured 100% input for actual
100% input value.
Calibrated monitoring value=Monitoring value+ Monitoring value ×SPN
100- SPN
E.g.) When the input monitoring value is 99% at 4mA in DC4-20mA
control input, setting SPN to 1 calibrates the input monitoring
value to 100%.
Actual input signal [%]
Measured input signal [%] Measured input signal [%] Output [%]
This function recognizes the load resistance value automatically.
Turning on this function operates the load with 100% of output for
approx. 3 sec and sets the load resistance value in the product
automatically.
※This is only for feedback control models.
Full load auto recognition [F-L]
Alarm
Type Error Operation Clear alarm
Display
priority
SCR error alarm
※1
SCR
Output stops.
(SCR OFF)
- Re-supply the power.
- RESET
- Switch to STOP mode
1
Overcurrent
alarm※1O-C 2
Fuse break alarm FUS 3
Heatsink
overheat alarm TEM 4
Overvoltage
alarm※1O-V 5
Heater break
alarm※1H-B Continues operation
Automatically cleared
when returning within
the setting range
6
1) SCR error alarm
Even though output is 0%, if the current of 10% or more of the rated
load current ows for over 3 sec continuously, SCR error alarm
occurs and output stops.
2) Overcurrent alarm [OCU/OCT]
This function protects the load from overcurrent.
If the current ows over the overcurrent alarm setting value and
setting delay time, overcurrent alarm occurs and output stops.
3) Heatsink overheat alarm
When the temperature of a heatsink is over 85℃, heatsink overheat
alarm occurs and output stops.
4) Overvoltage alarm [OVV/OVT]
This function protects the load from overvoltage.
If the current ows over the overvoltage alarm setting value and
setting delay time, overvoltage alarm occurs and output stops.
5) Heater break alarm [HBV]
Comparing the full load resistance value and the current load
resistance value, if the current load resistivity is maintained under
the setting value for over 3 sec continuously, heater break alarm
occurs. Output does not stop and operates normally.
Current load resistivity(%) = Full load resistance value ×100
Current load resistance value
※1:This is only for feedback control models.
※ For models with alarm output, the error message and alarm
indicator ash at the same time, and alarm output turns on.
※ When multiple alarms occur at the same time, the highest priority
error message will be displayed based on priority.

I-42
SPR1 Series
RMS display/control
SPR1 Series measures and displays RMS value for maintaining accuracy.
E.g.) At pure resistance load, when control input is 4-20mA, rating is 220V or 50A.
Control input 4mA 8mA 12mA 16mA 20mA Unit
Amount of control input 0 25 50 75 100 %
Display voltage (normal control mode) 0 66 155 210 220 V
Display voltage (constant voltage feedback control mode)
0 55 110 165 220 V
Display current (constant current feedback control mode)
0 12 25 38 50 A
Communication Specifications
RS485 Communication Output
※
Applicable for models with RS485 communication output through option output (SPR1- T ).
Please refer to ' Ordering Information'.
Comm. protocol Modbus RTU Comm. speed 2400, 4800, 9600, 19200, 38400 bps
Connection method RS485 Comm. response time 5 to 99ms (default: 20ms)
Application standard Compliance with EIA RS485 Start bit 1-bit (xed)
Max. connections 31 units (address: 1 to 99) Data bit 8-bit (xed)
Synchronization
method Asynchronous Parity bit None, Even, Odd
Comm. method Two-wire half duplex Stop bit 1-bit, 2-bit
Comm. distance Max. 800m
Application of system organization
※
It is recommended to use Autonics communication converter; SCM-WF48 (Wi-Fi to RS485·USB wireless communication
converter, sold separately), SCM-US48I (USB to RS485 converter, sold separately), SCM-38I (RS232C to RS485 converter,
sold separately). Please use twisted pair wire, which is suitable for RS485 communication, for SCM-WF48, SCM-US48I and
SCM-38I.
B (-)
B (-)
ON OFF
A (+)
A (+)
A (+) B (-)
A (+) B (-)
A (+) B (-)
Terminating resistance
(100 to 120Ω)
RS485
DEVICE
#1
RS485
DEVICE
#2
RS485
DEVICE
#30
RS485
DEVICE
#31
Computer
RS232C/
USB/Wi-Fi
Comm.
converter
RS485
Sold Separately
Communication converter
SCM-38I
(RS232C to RS485 converter)
SCM-US48I
(USB to RS485 converter)
SCM-WF48
(Wi-Fi to RS485·USB wireless
communication converter)

I-43
LED Display, Single-Phase, Slim, Power Controller
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Proper Usage
1. Follow instructions in 'Cautions during Use'. Otherwise, it may cause unexpected accidents.
2. Use the product, after 3 sec of supplying power.
3. Before use, set the mode and function according to the specification.
Especially, be cautious that the product does not operate when OUT ADJ. is set to 0%. Since changing the mode/
parameter during operation may result in malfunction, set the mode and function after disconnecting load output.
4. Re-supply the power to the unit after the unit is discharged completely.
Failure to follow this instruction may result in malfunction.
5. To ensure the reliability of the product, install the product on the panel or metal surface vertically to the ground.
6. Install the unit in the well ventilated place.
7. While supplying power to the load or right after turning off the power of the load, do not touch the body and heat sink.
Failure to follow this instruction may result in a burn due to the high temperature.
8. Install a power switch or circuit breaker in the easily accessible place for supplying or disconnecting the power.
9. Do not wire to terminals which are not used.
10. Since inter element can be damaged when using with coil load, inductive load, etc., the inrush current must be under the
rated load current.
11. Do not use near the equipment which generates strong magnetic force or high frequency noise.
12. This unit may be used in the following environments.
①Indoors (in the environment condition rated in 'Specifications') ②Altitude max. 2,000m
③Pollution degree 2 ④Installation category III
Cautions during use
Removing the Case
Replacement of Fuse
For replacing the fuse, please use the recommended fuse which
has the below specications.
(manufacture: BUSSMANN)
Rated load
current Model Rated load current Model
25A 50FE 70A 100FE
35A 63ET 100A FWH-150B
50A 80ET 150A FWH-200B
※
The performance of the product is guaranteed only when using
the fuse provided by us.
Recommended fuse specifications
Spec. of fuse fixing bolts
Rated load current Spec. of bolts
25A, 35A, 50A, 70A M6
100A, 150A M8
Fuse
xing
bolts
Fuse
②
①
Case xing
bolts
Spec. of case fixing bolts
Rated load current Spec. of bolts
25A, 35A, 50A, 70A M3
100A, 150A M4