How to use the UJ20 external inputs/outputs and modes / Troubleshooting

Transcription

1 How to use the UJ20 external inputs/outputs and modes / Troubleshooting Page Title 1 How to use the UJ20 external inputs/outputs and modes / Troubleshooting 2 Emergency stop of UV irradiation 1: EMERGENCY signal 3 Emergency stop of UV irradiation -2: signal 4 Emergency stop of UV irradiation -3: [EMISSION] SW 5 UV irradiation by an external signal (foot SW) (when using one head) 6 UV irradiation by an external signal (foot SW) (when using one head) 7 How to use BUSY signals 8 How to use BUSY signals (Connection of UV irradiation indicators) 9 signal modes: PULSE/STATUS 10 UV irradiation starting by SW-on and stopping at a preset time 11 UV irradiation while holding SW on and stopping at the preset time 12 Collective/individual lighting control of multiple heads (ALL/MULTI) 13 Collective lighting control of multiple heads [ALL]-[PULSE] 14 Collective lighting control of multiple heads [ALL]-[STATUS] 15 Individual lighting control of multiple heads [MULTI]-[PULSE] 16 Individual lighting control of multiple heads [MULTI]-[STATUS] 17 Lighting control of the heads in pairs using two foot SWs 18 UV irradiation only by signal inputs regardless of time setting 19 UV irradiation only by signal inputs regardless of time setting: [MNL] irradiation 20 UV irradiation pattern switching 21 UV irradiation pattern switching 22 Remedies for outputs of [ALARM] and [] warning signals 23 UV irradiation is impossible although [] is not displayed 24 Precautions for simultaneous input of the signal to multiple UJ20 controllers 25 UJ20 inputs/outputs (I/O terminal arrangement) 26 UJ20 inputs/outputs (I/O specifications) 1

2 Emergency stop of UV irradiation - 1: EMERGENCY signal Use the [EMER] signal to stop the UV irradiation of UJ20. Terminals [11] and [12] are shorted by a shorting bar as a factory default. Connect an emergency stop SW between these terminals so that the signal input can be turned off when the SW is pressed, and a forced stop of UV irradiation will be possible even in the middle of the process. 1: While the [EMER] signal input is off, the [] signal is off, and UV irradiation is not possible. 2: If the [EMER] input is turned off during UV irradiation, it will stop, and the [] signal will be output. Connect an emergency stop SW between [EMER]=[11] and []=[12] by B-contact. 2

3 Emergency stop of UV irradiation -2: signal Use the [] signal terminal [9] to stop the UV irradiation of UJ20. When the signal is input between terminals [9] and [12], the UV irradiation will stop, and the [] signal will be turned on. [] is output because the UV irradiation has not completed. Input [] again or hold down the [SET] key to release the [] signal. UV T 3

4 Emergency stop of UV irradiation -3: [EMISSION] SW Operation Press the [EMISSION] SW on the panel to stop the UV irradiation. When the UV irradiation is stopped by the [EMISSION] SW, [] is output because the UV irradiation has not completed. Hold down the [SET] key to release the [] signal. [EMISSION] EMISSION UV T EMER. 4

5 UV irradiation by an external signal (foot SW) (when using one head) When using a foot SW or other external signal to start the UV irradiation, use the [] input terminal for easier connection. When using only one LED head, connect the head to [CH1], and connect the foot SW between terminals [1] and [12]. Don t remove the shorting bar between terminals [11] and [12]. (Since the bar is used for an emergency stop signal, the UV irradiation is disabled if the connection is off.) SW Foot SW UV irradiation Preset UV irradiation time Connect the SW between [1]=[1] and []=[12] by A-contact. 5

6 UV irradiation by an external signal (foot SW) (when using one head) When using a foot SW or other external signal to start UV irradiation, use the [] input terminal for easier connection. UV irradiation starts when the [] signal is received while the [] signal is on. During UV irradiation, the [] signal is off, and the [] signal input is ignored. UV T T EMER. 6

7 How to use BUSY signals The [BUSY] output signals stay on during UV irradiation by the corresponding heads from CH1 to CH4. The BUSY1 to BUSY4 signals are output for heads CH1 to CH4 independently. Even if the output is set to 0% by the irradiation pattern setting, these signals are output. These signals can be used for controlling the indicator that is lit during UV irradiation by each head. UV-1 T1 UV-2 T2 7

8 How to use BUSY signals (Connection of UV irradiation indicators) UJ20 has a 5 V DC (250 ma) external power supply. Use this power supply and BUSY1 to BUSY4 in combination, and UV irradiation indicators can be directly connected without any external devices. If the head cable length exceeds 2 m, use the BUSY signals to install UV irradiation indicators in an easily viewable location for safety purposes. The external power supply is 5 V DC, and the maximum allowable load current is 250 ma in total. The maximum allowable load current for each BUSY signal is 100 ma. +5 V DC V DC 8

9 signal modes: PULSE/STATUS There are two signal modes: [PULSE] and [STATUS]. [PULSE]: UV irradiation starts when an external pulse signal is input. When the preset time has elapsed, UV irradiation stops. [STATUS]: While an external signal is input, UV irradiation continues. When the signal is turned off within the preset time, the irradiation stops. When the preset time has elapsed, irradiation stops even if the signal is still on. [PULSE] PULSE UV T [STATUS] UV T T STATUS 9

10 UV irradiation starting by SW-on and stopping at a preset time UV irradiation starts when the foot SW is stepped on (momentary input = no need for keeping the SW stepped on), and stops when the preset time has elapsed. [PULSE]: UV irradiation starts when an external pulse signal is input. When the preset time has elapsed, UV irradiation stops. PULSE (1) The UV irradiation starts when the [] signal is received while the [] signal is on. The UV irradiation starts when the [] signal is input, and stops when the preset time has elapsed. (2) When the UV irradiation stops, the [] signal is turned on. * During UV irradiation, the [] signal is off, and the [] signal input is ignored. * When the [] signal is input, the UV irradiation stops, and the [] signal is turned on. UV-1 T1 10

11 UV irradiation while holding SW on and stopping at the preset time The UV irradiation continues while the foot SW is stepped on (alternate input), and stops when the preset time has elapsed. When the foot SW is turned off, the UV irradiation stops. [STATUS]: While an external signal is input, the UV irradiation continues. When the signal is turned off within the preset time, the irradiation stops. STATUS (1) The UV irradiation starts when the [] signal is received while the [] signal is on. The UV irradiation starts when the [] signal is input, and stops when the preset time has elapsed. (2) When the UV irradiation stops, the [] signal is turned on. * During UV irradiation, the [] signal is off, and the [] signal input is ignored. * When the [] signal is input, the UV irradiation stops, and the [] signal is turned on. UV-1 T1 11

12 Collective/individual lighting control of multiple heads (ALL/MULTI) Setting UJ20 has four channel connectors for connection of up to four heads. There are two modes for controlling signals to the channels (lighting of the heads): [ALL] and [MULTI] The two modes are switched on UJ20. [ALL] Mode to light multiple heads collectively with one external signal [MULTI] Mode to light multiple heads individually with respective external signals [ALL] [MULTI] 12

13 Collective lighting control of multiple heads [ALL]-[PULSE] [ALL] Mode to light multiple heads collectively with one external signal [PULSE] Mode to start irradiation by turning on the signal with a short input pulse Setting (1) UV irradiation continues for a preset time after the signal is turned on. (2) The signal stays off during irradiation. (3) The signal is turned on when all irradiation processes complete. (4) The next irradiation can be started. [ALL] [PULSE] UV-1 T1 UV-2 T2 UV-3 UV-4 T3 T4 13

14 Collective lighting control of multiple heads [ALL]-[STATUS] [ALL] Mode to light multiple heads collectively with one external signal [STATUS] Mode to continue UV irradiation while the signal input stays on. (UV irradiation continues while a foot SW stays on and stops when the SW is turned off.) (1) UV irradiation continues for a preset time within the period where the signal is kept on. (2) The signal stays off during irradiation. (3) The signal is turned on when all irradiation processes complete. (4) The next irradiation can be started. * When the signal is turned off, the UV irradiation stops even within the preset time. (In this case, the signal is not turned on.) [ALL] [STATUS] Setting UV-1 T1 UV-2 UV-3 T2 T3 UV-4 T4 14

15 Individual lighting control of multiple heads [MULTI]-[PULSE] [MULTI] Mode to light multiple heads individually with respective external signals When the [EMISSION] SW is pressed, the heads simultaneously start UV irradiation. [PULSE] Mode to start irradiation by turning on the signal with a short input pulse -1 (1) The heads corresponding to the 1 to 4 signals start the UV irradiation at a preset time. (2) The BUSY signals corresponding to the heads are turned on. * The signal is off while all heads 1 to 4 are lit. * While any of the heads 1 to 4 is ready to start irradiation, the signal is on. (3) When the signal is input, all heads stop the UV irradiation, and the signal is turned on. UV-1-2 UV-2 T1 T2 Setting -3 UV-3 T3 [MULTI] -4 [PULSE] UV-4 T4 15

16 Individual lighting control of multiple heads [MULTI]-[STATUS] [MULTI] Mode to light multiple heads individually with respective external signals When the [EMISSION] SW is pressed, the heads simultaneously start UV irradiation. [STATUS] Mode to continue the UV irradiation while the signal input stays on. (Individual heads continue UV irradiation while the respective foot -1 SWs stay on and stop the irradiation when the SWs are turned off.) (1) The heads continue UV irradiation for a preset time within the period where the SWs corresponding to the 1 to 4 signals are kept on. * When the signal is turned off, the UV irradiation stops even within the preset time. (In this case, the signal is not turned on.) (2) The BUSY signals corresponding to the heads are turned on. * The signal is off while all heads 1 to 4 are lit. * While any of the heads 1 to 4 is ready to start irradiation, the signal is on. (3) When the signal is input, all heads stop the UV irradiation, and the signal is turned on. UV-1-2 UV-2-3 T1 T2 Setting UV-3 T3 [MULTI] -4 [STATUS] UV-4 T4 16

17 Lighting control of the heads in pairs using two foot SWs In the [MULTI] mode, the heads (channels) can be turned on individually by the respective external inputs. The heads (channels) can also be controlled in pairs separately using two foot SWs if foot SW 1 is assigned to CH1 and CH2, and SW 2 to CH3 and CH4. Setting FSW-1 UV-1 T1 UV-2 T1 FSW-2 [MULTI] UV-3 T3 FSW-1 FSW-2 UV-4 T4 17

18 UV irradiation only by signal inputs regardless of time setting UV irradiation can be freely controlled using only external signals regardless of the UV irradiation time setting by UJ20. [MNL]: Manual mode (1) Manual setting of the manual mode Hold down the [SET] SW, and the mode will change from [AUTO] to [MNL]. Press the [EMISSION] SW to start UV irradiation, and press it again to end the irradiation. The target CH (head) can be selected by pressing the corresponding [CH] switch. The [AUTO] mode is usually used. (2) Setting of the manual mode by using an external signal MNL. When the [MNL.] external signal is turned on, the mode changes from [AUTO] to [MNL]. In the [MNL] mode, while the external signal [-1/2/3/4] is on, the corresponding CH (head) continues UV irradiation. Note: * In [MNL] mode, the manually set UV irradiation intensity is applied. * The mode can be switched to [MNL] when the [] signal is on. * The [] signal stays off during irradiation in [MNL] mode. * The [] signal input is invalid during irradiation in [MNL] mode. Therefore, turn off the [EMER.] signal input to make an emergency stop of the UV irradiation. Reference: There is no limit on the irradiation time for the [MNL] mode while it is limited to 999 seconds for the [AUTO] mode. 18

19 UV irradiation only by signal inputs regardless of time setting: [MNL] irradiation If the mode is switched to manual mode by using the [MNL.] signal, the UV irradiation can be freely controlled using only external signals regardless of the UV irradiation time set by UJ20. (1) Input the [MNL] signal to switch to manual mode. When the mode is switched, the [] signal will be turned off. (2) While the [-1/2/3/4 ] signal stays on, the corresponding CH (head) continues UV irradiation. (3) When the [MNL] signal is turned off, the mode will be switched to [AUTO], and the [] signal will be turned on. MNL. -1 UV-1 MNL MNL. -2 UV-2-3 UV-3-4 UV-4 19

20 UV irradiation pattern switching The UV irradiation patterns (TYPE00 to 15) of UJ20 can be switched with external signals [TYPE Cng1 to 4]. The irradiation pattern can be switched by changing the input status of the [TYPE Cng1 to 4] signals while the [] signal is on. Maintain the status of the irradiation pattern signals depending on the target irradiation pattern. The irradiation patterns are switched by setting the signal status of [TYPE Cng1 to 4] as shown in the table below. Pattern No. Signal TYPE Cng4 TYPE Cng3 TYPE Cng2 TYPE Cng1 Pin No OFF OFF OFF OFF 01 OFF OFF OFF ON 02 OFF OFF ON OFF 03 OFF OFF ON ON 04 OFF ON OFF OFF 05 OFF ON OFF ON 06 OFF ON ON OFF 07 OFF ON ON ON 08 ON OFF OFF OFF 09 ON OFF OFF ON 10 ON OFF ON OFF 11 ON OFF ON ON 12 ON ON OFF OFF 13 ON ON OFF ON 14 ON ON ON OFF 15 ON ON ON ON 20 TYPE Cng1 TYPE Cng2 TYPE Cng3 TYPE Cng4 Note: * When the pattern is set to [TYPE00], the [TYPE] manually set on the UJ20 panel takes precedence. * When the external signal [TYPE Cng1/2/3/4] is input, the [TYPE] set by the external signal takes precedence.

21 UV irradiation pattern switching The UV irradiation patterns (TYPE00 to 15) of UJ20 can be switched with external signals [TYPE Cng1 to 4]. The irradiation pattern can be switched by changing the input status of the [TYPE Cng1 to 4] signals while the [] signal is on. * While the [] signal is off, the irradiation pattern cannot be switched even if the [TYPE Cng1 to 4] signal settings are changed. * While the [] signal is on, the irradiation pattern can be switched by changing the input status of the [TYPE Cng1 to 4] signals. * When a pattern that is not registered in UJ20 is specified by the [TYPE Cng1 to 4] signals, the pattern is switched; however, the [] signal will be turned off. This is because the unregistered pattern is specified. * Use a PLC or other transistor output device to input the pattern switching signals. If a relay is connected, the pattern switching operation may be unreliable due to contact chattering. TYPE Cng 1/2/3/4 TYPE of UJ20 TYPE Cng1 TYPE Cng2 TYPE Cng3 TYPE Cng4 21

22 Remedies for outputs of [ALARM] and [] warning signals When the [ALARM] or [] external signal is output, the UJ20 operation is under a warning condition. Take appropriate actions by referring to the table below. When [ALARM] is output, the [] signal is on, and UV irradiation is possible. When [] is output, the [] signal is turned off, and UV irradiation is not possible. Troubleshooting ALARM UJ20 display CH in orange E05 x100hrs flashing E06 E00 E01 E02 E03 E04 E07 External output ALARM ON ON ON ON ON ON ON ON ON ON Status Temperature warning Abnormal temperature LED replacement warning LED replacement time Interlock emergency stop Irradiation incomplete Connection error LED wire broken LED short-circuited Calibration error Cause The LED head temperature has reached the warning level during UV irradiation. The UV irradiation continues. The LED head temperature has exceeded the warning level during UV irradiation. The UV irradiation stops. There are less than 30 hours remaining before the total irradiation time of the LED reaches the preset replacement print. The total irradiation time of the LED has reached the preset LED replacement point. The UV irradiation stops. The interlock contact, [EMER], was opened during UV irradiation. The irradiation was stopped before completion. The head to be used for the target irradiation pattern is not connected. LED circuit opening was detected during irradiation. LED short-circuiting was detected during irradiation. The UV intensity did not reach the set intensity. Remedy The head is overheated because the size of the head mounting bracket was inadequate. Review the choice of the head mounting bracket. Press the [POWER] SW during UV irradiation to check the LED head temperature. Replace the head and reset the total irradiation time. Hold down the [TIME] SW and select the channel of the head to be replaced. Press and simultaneously to reset the total irradiation time. Hold down [SET] to go back to the operation mode. Ensure the safety and then short the interlock terminal, [EMER] (11), and terminal (12). The [] external signal was input, or the [EMISSION] SW was pressed, and the UV irradiation was stopped before completion. Clarify and remove the cause. Hold down the [SET] SW and input the [] signal again to reset the error. Hold down the [SET] SW to reset the error. Connect the required head. Hold down the [SET] SW to reset the error. Turn off the power and check the cable and head. Replace them if necessary. The UV intensity calibration may be impossible depending on the head installation position and the lens type. Decrease the intensity setting and then retry the calibration. It is also possible that the lens is stained or that the head intensity has decreased. 22

23 UV irradiation is impossible although [] is not displayed When the UV irradiation cannot started by pressing the [EMISSION] key or inputting an external signal although the panel is not displaying [], the [] signal is off because the UV irradiation conditions are not met. Troubleshooting Remedy (1) Ensure that the shorting bar between terminals [11] and [12] is not detached. This [EMER] circuit must be normally closed. If the [EMER] signal is off, an emergency stop is made, and the [] signal is turned off, preventing UV irradiation. (2) The UV irradiation conditions have not been set for the TYPE number indicated on the UJ20 display. Set the conditions or switch the TYPE number to another one for which UV irradiation conditions have been set. EMER. UV T EMER. 23

24 Precautions for simultaneous input of the signal to multiple UJ20 controllers One signal can be simultaneously input to multiple UJ20 controllers. Add diodes to the terminals to prevent input signal currents from leaking. There are no problems when only one controller is used. However, as shown in Figure 1, when one of multiple controllers is powered on and the others are powered off, a small current from the terminal of the ON-controller passes the terminals of the OFF-controllers, their internal boards, and then the GND terminals. The leak current will cause the controller to misjudge that a signal has been input. Figure 1 Figure 1 POWER = ON MON (GND) POWER = OFF MON (GND) POWER = OFF MON (GND) POWER = ON MON (GND) POWER = OFF MON (GND) POWER = OFF MON (GND) As shown in Figure 2, add general rectifier diodes to the terminals to rectify the current flow. The signal current is approx. 15 ma. Also take the same measures for the input terminals other than the signal terminals. 24

25 UJ20 inputs/outputs (I/O terminal arrangement) Input/Output Pin No. Signal name Description 1 1 Signal to start CH1 or collective irradiation 2 2 Signal to start CH2 irradiation 3 3 Signal to start CH3 irradiation 4 4 Signal to start CH4 irradiation 5 TYPE Chg1 Signal to switch irradiation patterns 6 TYPE Chg2 Signal to switch irradiation patterns 7 TYPE Chg4 Signal to switch irradiation patterns 8 TYPE Chg8 Signal to switch irradiation patterns 9 Signal to activ ate an emergency stop during irradiation 10 MNL ON Signal to switch to manual mode (External MNL mode) Input Output 11 EMER. Interlock (normally-on) 12 Common terminal for input/output signals 13 Irradiation is ready 14 BUSY 1 ON during CH1 irradiation 15 BUSY 2 ON during CH2 irradiation 16 BUSY 3 ON during CH3 irradiation 17 BUSY 4 ON during CH4 irradiation 18 Error signal 19 ALARM Warning signal (temperature warning and time warning) 20 Common terminal for input/output signals 21 Common terminal for input/output signals 22 FG Frame ground 23 +5V 5 V DC output (for display for output signals) 24 GND 5 V DC ground Pin Nos. 12, 20, and 21 are internally connected. The ON time of the input signal pulses must be 100 ms or more. Size AWG#24-16 Cross section of the conductor mm 2 MINI BICON Plug 12P (Phoenix Contact MC 1.5/12-ST- 3.5) Notes: (1) Terminal tightening torque: 0.22 N m to 0.25 N m (2) Carefully strip the cover so as not to damage the core wires. (3) Connect the core wires without twisting them. (4) Connect the core wires without soldering them; otherwise, they may break due to vibration. (5) After connection, do not apply stress to the cable. (6) Because of the terminal structure, if the wire is tightened by a counterclockwise rotation, the connection will fail. In such cases, pull out the wire, check the terminal hole, and then connect it again. 25

26 UJ20 inputs/outputs (I/O specifications) UJ20 input signals can be directly input through the contacts of a footswitch, for example. PLCs and other open collectors can be directly connected. Input specifications Contact input Non-contact input Open collector (Tr) or no-voltage input such as a relay Output specifications With external power supply With internal power supply Rated operation voltage: 5 to 24 V DC Output capacity: 100 ma (max.) 26