3
4
Signal and
alarm terminals
LED display
Overcurrent
setting volume
Soft start or
UP/DOWN setting volume
Output limit volume
Internal dip switch
Input signal and
power terminal (control unit)
Load terminal
LOAD
Fast acting fuse
Noise filter
100 - 240 V a.c
Time delay
fuse
R U
▒ Recommended connection diagram
· In case of low voltage model, we suggest connect it as following picture. (90/110/130A have fuse).
· If the product is used in a place where there is an excessive amount of noise from power then make sure to use
a noise filter satisfied its specification as shown in the picture below. If not, it can be a cause of malfunction.
· When the voltage is used higher than 380 V AC, please make sure that the input power for the control unit is
separately connected to 100 - 240 V AC.
· Please use a 2 A fuse for the time delay fuse.
· Please select a fuse that satisfied with operating current/voltage for the fast acting fuse.
(example) actual operating current 40 A : BUSSMANN FWH-40 (please use 40 A r.m.s min)
Part name and function
▒ Internal dip switch operation
Number
ON
OFF
Default mode
No. 1
-
1. input mode : 4 – 20 mA DC
2. control mode : phase control
3. others : Restart mode ON,
partial load break function OFF
No. 2
-
Partial load break function
No. 3
-
Restart mode ON
No. 4
Fixed cycle control
Phase control (Linear output)
No. 5
Variable cycle control
No. 4, 5
Phase control
No. 6
Limit mode
-
No. 7
1 - 5 V DC
Use external and internal
V.R simultaneously
No. 8
External V.R
No. 7, 8
4 - 20 ㎃ DC
Function description
▒ Phase control
▒ Phase control (Linear output)
Phase control is to control the AC power supply applied to the load proportionally according to the control
input signal as changing phase angle (0 ~ 180 degree) in a each half cycle, 8.33 ms.
The control method is the same as the phase control but it outputs more linearly than the phase control.
<Ordinary phase control>
<Phase control (Linear output)>
25 % control
Output
Output
contact
signal
Contact
signal
Output
contact signal
Output
contact signal
50 % control
75 % control
100 % control
Output
control input (mA)
100 %
80 %
60 %
40 %
20 %
6 8 10 12 14 16 18 20
Output
control input (mA)
100 %
80 %
60 %
40 %
20 %
6 8 10 12 14 16 18 20
▒ Restart function
▒ V.R Explanation
When a warning or caution alarm occurs, TPR gives alarm 1 or 2 or stop the output. This function is used
to return to normal operation mode when factors caused errors are eliminated.
This function can be used in power failure, frequency variation and SCR short of EMG and OT1, 2 of
overheated heat sink. (This function is not applicable to when overcurrent occurs.)
1. O.C (overcurrent setting function)
When overcurrent occurs, protection function for TPR and load (Only for phase control)
•
V.R gradation for overcurrent setting position.
•Depending on load type and VR error, overcurrent setting
position can be different.
•The overcurrent setting can be different depending on the types
of load or VR tolerance. In order to set an accurate position of
the overcurrent setting, adjust the control signal that TPR can have the current that needs to be alarmed. Turn
the O.C VR until the O.C indicator is ON. The position of the O.C VR is the overcurrent setting value.
•If OC V.R turning to the right of the maximum, overcurrent function does not work.
2. SOFT
This volume is to set time for Soft start or Soft up/down. (only applicable to phase control, ON/OFF control)
- Soft start : Protection functions against big load of start current (inrush current). It increases output softly.
When control input is applied and power is on, Soft start operates when rung signal is applied.
In case of maximum VR, it set 60 second. (Example : 20 mA : 60 sec, 12 mA : 30 sec)
- Soft up / down : When run signal and power are applied and if
control input is applied, it will operate. It
case of maximum VR, it set 15 second.
- If VR turn up to the right, the function does not work. And if VR turn
right, time will be reduced.
3. POWER (output limit function)
This function is to limit the output regardless of the control input amount.
Even though the control input is 100 %, the output will decrease as
turning POWER volume counterclockwise.
▒ ON/OFF control
If ON/OFF contact is ON, then the output is 100 %. ON/OFF always operates near zero point.
•Even though the control input signal is
ON, the output is 100 % when ON/OFF
control is used.
25 % control
Output
Output
contact
signal
Contact
signal
Output
contact signal
Output
contact signal
50 % control
75 % control
100 % control
Output
current
Time
Time
Input
signal
output voltage(%)
VR setting value (%)
Control input (%)
100
80
60
40
20
0
100
80
60
40
20
0
20
40
60
80
100
1. Please install it perpendicularly. If the product is installed vertically in
unavoidable circumstances, please use 50 % of rated current.
2. When multiple products are closely installed, please install them with
keeping a distance of more than a width of 5 cm and a length of
10 cm as shown in the picture.
3. In order to not block the air flow, please install the wiring duct less
than the half of the heat sink height.
4. Please consider whether the air flow is good enough when installing
the product. If the ambient temperature is as low as possible in the
inside then the life span of the product is increasing as the durability
and reliability of the product are improving. The operating ambient
temperature is 0 ℃ ~ 40 ℃. Please refer to the following graph.
However, if the ambient temperature is higher than 40 ℃, the
maximum load current is decreasing like the below.
5. When connecting R and U, please securely fasten them with
using crimp connectors since high current flows into these
terminals. If the contact surface of the connectors and
terminals are poor, it may lead to a fire since the wires and
terminal gets overheated.
6. Before applying power, this model need more than the third class grounding to prevent electric shock.
This model does not have separate grounding terminal so we suggest using grounding terminal and
bracket together when install this model to a panel.
•Characteristic of current
and temperature
Installation
Airflow
Perpendicular installation
Load curren
t
Ambient temperature (℃)
▒ LED indicator and explanation
LED indicator
name
Description
POWER
POWER indicator is ON when the power is being supplied to the control unit
FIRE
Fire indicator is ON proportionally to the control input. It lights longer if the output amount is
large and it is continuously ON if it outputs 100 % continuously.
SOFT
To use Soft start, Soft up/down function, turn Soft VR clockwise and SOFT indicator will be ON.
O.C
If the current flows higher than set value of O.C volume when there is overcurrent then O.C indicator
is ON, the TPR stops the output to protect the product and the load and alarm 1 is activated.
L.L
This is partial heater break alarm. If heaters are connected in parallel 2~4 and one or more of heater is
broken, alarm 2 will be activated. But in this case, alarm is activated and regulator operates properly.
(But in case of heater break, LL led will be displayed when total load current is more than 7A or falling load
current more than 3A)
0.T1
While TPR is operating, the temperature of the heat sink is higher than 65 ℃, OT1 indicator is ON
and alarm 2 is activated but the output of TPR is normally operating. If the temperature of the heat
sink is below approximately 55 ℃, alarm 2 is deactivated.
0.T2
While TPR is operating, the temperature of the heat sink is higher than 85 ℃, OT2 indicator is
ON and alarm 1 is activated but TPR stops the output.
EMG
The following situation when EMG LED indicator is ON. (This situation is for when alarm 1 (warning) outputs)
1. Power failure : when the power (100 – 240 V AC) of the control unit is being supplied, EMG LED is ON
if the power for the load is not being supplied or the heater is broken.
2. SCR short : If SCR is short-circuited then the heater gets overheated since the power is being supplied
to the load regardless of the output of TPR. EMG is ON if the current flows without the control input.
3. Frequency variation : EMG is ON when the frequency other than 50/60 Hz that TPR cannot control.
▒ Variable cycle control
Without setting a constant cycle, variable cycle control
is to control AC power supply with using the number of
cycle.
TPR-2SL040/055/070 TPR-2SL090/110/130
O.C
17 A
37 A
58 A
O.C
26 A
57 A
87 A
O.C
17 A
37 A
58 A
O.C
26 A
57 A
87 A
▒ Fixed cycle control
As setting the constant cycle of the output, (1 sec),
fixed cycle control is to control the AC power
supply repeatedly with a constant rate of ON/OFF
according to the control input.
60 ㎜ min
100 ㎜ min
30 ㎜ min
50 ㎜ min
Air flow
Wiring duct
Air in
Air out (FAN)
Wiring duct
Wiring duct
