Wiring
Wiring of power supply
The Power supply connection inside the unit has individual power
supplies for solenoid valve actuation (SV power supply) and for Sensor
(SW power supply). Supply 24V DC for each of them.
Either single or dual power supply is available. Wiring is not necessary
for SW power supply when no Input Blocks are used.
*In case of single power supply, pay attention to the range of each
supply voltage.
Names and Functions of Individual Parts (continue)
PWR(V) PWR
MOD/NET
SETTINGS
1
0
PWR(V):
Power LED for
output equipment
PWR:
Power LED for SI unit
and Input block
MOD/NET
Indication
Contents
PWR (V)
Light ON when power for solenoid valve is supplied.
PWR
Light ON when power for DeviceNet line is supplied.
MOD /
NET
Light OFF Power off,off line or Duplicate MAC ID.
Green
flashing
Waiting for connection (ON line)
Green
Light ON
Connection completed (ON line)
Red
flashing
Connection timed out (Minor communication
error)
Red
Light ON
MAC ID duplication error or BUS OFF error
(Major communication error)
Voltage reduction of approx.1V
24V DC
SI unit
Input Block
23V DC
Sensor
Power for a sensor is supplied to the sensor connected to an Input Block.
There will be a voltage drop of up to approx. 1V inside the SI unit,
therefore select a sensor which will operate with the resultant voltage.
If a sensor requires 24V, it is necessary to lower power supply voltage
for sensor slightly or secure a power supply for sensor separately without
going through the SI unit so that sensor input voltage can be 24V with
actual loading (allowable voltage of sensor power supply : 19.2V to
28.8V).
Power supply connector
M12 5pin (Plug)
Communication connector
M12 5pin (Plug) [Special for DeviceNet]
3
2
1
4
5
3
2
1
4
5
No.
Description
Function
1
SV 24V
For solenoid valve +24V
2
SV 0V
For solenoid valve 0V
3
SW 24V
For sensor unit +24V
4
SW 0V
For sensor unit 0V
5
E
Earth
No.
Description
Function
1
Drain
Drain / Shield
2
V +
Power for circuit
3
V -
Power supply - for circuit
4
CAN_H
Signal wire H
5
CAN_L
Signal wire L
SW Setting
Address setting
When DIP switch is to be set, turn OFF power supply to SI unit.
Position of DIP switch
DIP switch
M3 pan head screw
Tightening torque : 0.6N . m
SW1
1.Default value of address and baud rate.
Node address and baud rate are preset to 63, 125kbps respectively at
the shipment in either HW mode or SW mode.
2.In SW mode, setting value of address and baud rate are retained even
after power supply is off.
3.In HW mode, once power supply is turned off and turned on again,
then setting value of address and baud rate in S/W mode are erased.
Address and baud rate can be set again by setting switch SW1.
Example
4.Output with communication stopped is set to 0 (full output clear mode)
at shipment from factory. It is possible to change setting of single
output when communication stopped. In this case,setting of SW1-9
becomes invalid.
SW mode
Address : 63
Baud rate : 125kbps
HW mode
Address : 0
Baud rate : 500kbps
SW mode
Address : 0
Baud rate : 500kbps
LED indication
0
Set address and Baud rate
by SW1 to 8
Set address and Baud rate
by network.
SW1 to 8 are invalid.
HW mode
1
SW mode
Mode setting
Setting of solenoid output state in communication fault
Solenoid output state:Communication stops (I/O connection time out)
or fault message is received.
Solenoid output state
All solenoid valve outputs are held before communication fault.
(Fault state=1 , Fault value=0)
All solenoid outputs are reset to zero.
(Fault state=0 , Fault value=0)
HOLD
CLEAR
SW9
1
0
Setting of address
Address
#0
#1
#2
#62
#63
SW1
1
0
1
0
0
1
SW2
2
0
0
1
1
1
SW3
4
0
0
0
1
1
SW4
8
0
0
0
1
1
SW5
16
0
0
0
1
1
SW6
32
0
0
0
1
1
Setting of Baud rate
SW7 SW8
Baud rate
(kbps)
0
1
0
1
0
0
1
1
Setting
125
250
500
Not used
..
.
1
2
3
4
5
6
7
8
9 10
ON
1
0
Error Display Function
MOD/NET LED
Cause & Countermeasure
Light OFF
PWR LED Light OFF
<Countermeasure>
Confirm that power for SI unit circuit is supplied.
Confirm correct wiring for circuit.
If above countermeasures do not improve status, please
exchange SI unit.
PWR LED Light ON
<Countermeasure>
Confirm that baud rate is set correctly.
If MOD/NET LED light is OFF in spite of baud rate is set
correctly, exchange SI unit.
Green flashing
Connection waiting
Shows communication waiting status between SI unit and
master.
<Countermeasure>
Confirm master is operating correctly.
If using scan list, ensure slave is recorded to scan list
correctly.
Red flashing
Communication wire disconnected error
Warning for SV supply voltage drop
(Except for EX250-SDN1-X102)
<Countermeasure>
Confirm communication wire is connected.
Confirm SV power supply voltage is according to
specification. (21.6 to 26.4V)
(Except for EX250-SDN1-X102)
<Remark>
Red flashing if master power source is turned off during
communication.
Red Light ON
Node address overlapping error
<Countermeasure>
Confirm there is no overlapping on the node address.
BUS OFF error
Detects communication error.
<Countermeasure>
Case 1
Communication error due to noise.
Confirm there is no component or high voltage cable that
generates noise around communication wire.
Make some distances between communication wire and
noise source.
Case2
Communication cable problem
Confirm terminal resistance (121ohm) is connected to
both ends of DeviceNet communication wire.
If red MOD/NET LED is still ON despite above
countermeasures, exchange SI unit.
When red MOD/NET LED is ON, even if cause is solved, the SI unit
does not perform auto-recovery. In this case, please reset the power
to SI unit circuit (Communication/Internal power supply).
Error Display Function (continue)
EX250-TFI73GB-A
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Specifications are subject to change without prior notice from the manufacturer.
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