MOLD TEMPERATURE CONTROL CONTROLLER Q&A
■ Name and role
■ For safe use
Q2: Is it safe to connect another company's heater to MISUMI's Temperature Controller?
Indicates a potentially hazardous situation that may result in death or serious injury. Indicates contents that may cause injury to persons or damage to property.
A: No problem. However, use within the rated input voltage (V) and maximum current (A).
Warning
Current value
Notes
Q3: Which mold temperature control controller should we use?
Set value
A: If the power supply you are using is single–phase, use the single–phase mold temperature controller (KCHD), and if it is three–phase, use the three–phase mold temperature controller (KCHH).
Warning ○ Do not use this product for any purpose other than controlling the heater. Failure to do so may result in malfunction, electric shock, etc. ○ When carrying this product, do not drop it or give it a shock. It may cause injury. Also, damage to the unit due to impact may cause fire or electric shock. ○ This product is for indoor use only. Do not use it outdoors. This may cause a malfunction or electric shock. ○ Do not use this product near volatile or flammable materials or in dusty places. This may cause a fire or an unexpected accident. ○ Do not put metal objects inside. It may cause electric shock or malfunction. If metal objects enter the unit, turn off the primary power supply and consult MISUMI. ○ If smoke, unusual odor, or unusual noise is generated, stop using the product immediately. It may cause a malfunction, electric shock, fire or accident. ○ Please do not connect it with the power supply and heater different from the rating. It may cause a malfunction or fire. ○ Do not disassemble, repair or modify by yourself. It may cause a malfunction, electric shock or fire. Please contact MISUMI for repair. ○ Do not handle this product with wet hands. It may cause electric shock or malfunction. ○ Do not spill liquids such as water or chemicals on the product. It may cause fire, electric shock, or malfunction. If any liquid is spilled, stop using the product immediately and consult MISUMI. ○ If the power cord or terminal block is damaged, stop using the product immediately. It may cause a malfunction, electric shock or fire. ○ Always disconnect the primary power supply before wiring. It may cause fire or electric shock. ○ Do not install the product in a place with poor ventilation. It may cause a malfunction or fire.
Q4: Is it possible to use multiple heaters with one mold temperature controller?
Name
Role PV Displays the current value or setting mode character. SV Displays the set value, output value, or selected input value of the setting mode screen.
A: Possible. However, please be sure to observe the operating current value of the mold temperature controller. Also, please limit the number of heater terminals connected to one terminal to two. If three or more terminals are used, please use a heat–resistant terminal block to make a branch connection.
OUT1 Lights up when control output 1 is ON OUT2 Lights up when control output 2 is ON AL1 Lights up during over–elevation operation AL2 Always off COM Always off RDY Lights up during RDY DI Always off MODE Key Use this key to switch screens. FUNC Key Executes the function that has been set. ▲▼ Key
Q5: The temperature does not rise easily. Or the control is not stable.
A: When the control method is PID control, the temperature is adjusted according to the values of P (proportional band), I (integral time) and D (differential time). The cause may be that each value is not optimal for your environment, so perform auto–tuning according to the following procedure. ※ In some cases, tuning can be completed in a few minutes, but in some cases it may take more than an hour.
1 Display switching 2 Change of setting mode screen
After changing to the control parameter mode, press the MODE key four times to switch the screen to the control type setting screen. Use the UP and DOWN keys to change the setting. 3 PID (Factory default)/ON/OFF settings
After changing to the control parameter mode, press the MODE key seven times to switch the screen to the tuning setting screen. Use the UP and DOWN keys to change the setting. 4 Self (Factory default)/Auto tuning settings
Use this key to increase or decrease (change) the set value. Press and hold to increase or decrease the value faster.
Press and hold the MODE key for 2 seconds to change the display.
When the setting mode screen is displayed, press the UP key to switch from < initial setting mode > < control parameter mode > .
■ Circuit
● KCHD (Single–phase/2ch)
Setting mode screen ＜ Initial setting mode ＞ ＜ Control parameter mode ＞
AC100V–220V INPUT
Tunning type setting screen
Control type setting screen
E R S
DOWN Key
UP Key
Current value
※
※
Notes
Auto tunning Self tuning
Set value
CP
ALARM/ RESET LAMP START/ STOP LAMP ALARM/ RESET SWITCH START/ STOP SWITCH
CONTROL CIRCUIT
(The factory setting, Temperature regulator) 1 and Temperature controller 2.
7 times
4 times
○ Do not install the product in a hot place, a place exposed to direct sunlight, a place near an air conditioner, or a place with high humidity. Extremes of 30°C or more and below 0°C may cause malfunction, deformation, or failure. Do not install the product in a humid environment exceeding 85%, or in a place where ice or condensation forms, as this may cause insulation failure, resulting in fire or electric shock. ○ In order to prevent electric shock in the event of an electric leak, please install a ground wire. < Location where ground wire can be installed > • Copper pieces buried more than 65 cm underground • Places where installation work (Class D) has been performed ○ Do not touch the terminals immediately after the power is turned off. The SSR built–in snubber circuit is charged with electric charge, which may cause electric shock.
1 time
Press and hold for 2 seconds
Note
SSR
DOWN Key
UP Key
After setting to auto tuning, it will not be reflected unless auto tuning is executed. After setting to , press the FUNC key once to start. ※ Self–tuning is not required.
TIC
PID Control (with overshoot suppression function) (Factory default) PID Control (without overshoot suppression function) ON/OFF Control
1 time
U V A B b
AC125V max3A 1 2
＋－
max30A OUTPUT
Q6: The set temperature cannot be set above a certain value.
• Precautions for KCHD (2ch) If the wiring is done as shown in the figure on the right, the total current of all channels (max. 60A) will flow and exceed the allowable current of the wires used. Exceeding the permissible use may cause overheating and ignition, which is extremely dangerous. Be sure to prepare separate input and output power supplies for each channel.
A: There is a possibility that the limiter is applied to the set temperature. (After turning on the power, press and hold the "MODE" key for 2 seconds > << SET1 screen >>> " ▲ " key once > << SET2 screen >>> "MODE" key once > << SLH screen >> . The temperature displayed at the bottom of the SLH screen is set to the upper limit temperature, so press the " ▲ " key to increase the upper temperature limit.) Q7: The temperature error is large. A: Please check if the temperature sensor is installed too far away from the object to be heated. Also, if the temperature sensor and the power line (AC power supply) are close to each other, it may get affected by noise. In that case, keep them away from the power line. In addition, the following two points may be considered. 1. Check whether the actual type of temperature sensor (K thermocouple, J thermocouple, resistance thermometer, etc.) and the input type setting of the mold temperature controller are correct. (After turning on the power, press and hold the "MODE" key for 2 seconds > << SET1 screen >>> "MODE" key once > << Input type setting screen >> will be displayed. Set the following parameters according to the type of temperature sensor. K Thermocouple: "00" J Thermocouple: "01" Resistance temperature detector Pt100Ω: "10") 2. Check if the input correction value is set. (After turning on the power, press and hold the "MODE" key for 2 seconds > << SET1 screen >>> "MODE" key 3 times > << PV correction zero point setting screen >> will be displayed, so set the correction value to zero.) Q8: The temperature keeps rising and cannot be controlled.
■ Before use
● KCHH (Three–phase/1ch)
• In the event of an overcurrent, the circuit breaker shuts off the power supply to protect the internal equipment. Please confirm whether there is no abnormality in the operation of this unit and the connected heater. If there is any abnormality in this unit, please stop using and contact MISUMI. • When the SSR of the internal equipment is damaged, the power circuit may short–circuit (short–circuit) and the heater output may become impossible to stop. It is very dangerous because it does not accept the control of the temperature controller, resulting in a heating error. If any abnormality is observed, please stop using the product and contact MISUMI. • If more safety is required, install a safety circuit to shut down the primary power supply. Even if the alarm function is malfunctioning and the instrument is operating abnormally, the instrument can be safely stopped by cutting off the power supply. • The closer the load current approaches the maximum value, the higher the internal temperature of the instrument becomes. In a high temperature environment, the product life of the internal equipment may be reduced, so be sure to use the product with a margin in relation to its ratings and take safety measures.
INPUT AC220V
E R S T
CP
ALARM/ RESET LAMP START/ STOP LAMP ALARM/ RESET SWITCH START/ STOP SWITCH
CONTROL CIRCUIT
SSR SSR
TIC
U V W A B b
AC125V max3A 1 2
＋－
max30A OUTPUT
Select the wire to be used in consideration of the surrounding environment and allowable current.
Q1: What are the different types of temperature control and what are the advantages and disadvantages of each?
A: The SSR inside the mold temperature control controller may be damaged, so stop using it immediately. For repairs, please contact and send the actual product. We will confirm whether we can repair the product or not, and if so, we will inform you of the price and delivery date.
A: Temperature control can be selected from the following types.
Advantages
Disadvantages
Easy to overshoot
ON/OFF control Quick temperature rise
ON/OFF control
PID control
Overheat can be controlled
Temperature rise takes longer than ON/OFF control
PID control
Auto tuning
Advantages
Disadvantages
Auto tuning self tuning
Optimal control setting values are obtained after tuning. Automatic tuning is performed even when disturbances occur.
Needs to be tuned when environment changes Slight changes in the environment are not recognized as disturbances and may not always result in optimal control settings.
Self tuning
1083
1084
Please check the advantages and disadvantages of each before use. Although the initial value is set to self–tuning for PID control, this may not always be the optimal control setting as described above. In such a case, execute auto–tuning according to Q5.
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