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No.EX##-OMP0025
Setting
○
Address setting
The AS-I cable line should be disconnected from the SI unit while setting the address. Open the cover and
set the address using an AS-Interface address programming device and DC power jack cable etc.
(P FUCHS: VAZ-PK-V1-Cinch, SIEMENS: 3RK1901-3HA00 etc.) The Address assignment
range is 1 to 31.
The address can be set regardless of connecting order, but it is not possible to set address overlap.
The address at shipment from the factory is 0. Set different address for ADDR1 and ADDR2 as
EX250-SAS3/-SAS7 occupy 2 slaves respectively.
∗
: If the address is to be set by the AS-I cable line via a master unit, in EX250-SAS3/-SAS7, it is possible to set the slaves one by one
using the DC power jack for address setting inserted, to disconnect from the AS-I cable line the slave which is not subject to address
setting at the moment (ADDR1 or ADDR2) (See page 15 for details). LED’s turned on during address setting is not unusual.
•EX250-SAS3/-SAS7
ADDR1: Address setting for IN0 to 3 / OUT0 to 3
ADDR2: Address setting for IN4 to 17 / OUT4 to 7
○
HOLD/CLEAR setting
Set whether to maintain the SI unit output condition (HOLD) or to turn off the outputs (CLEAR) when a
communication error is generated.
∗
: This switch at shipment from the Factory is set to CLEAR.
○
Over Current Protection setting SW
•Over Current Protection setting SW-ON (OCP-ON)
When the over current load is connected with an input/output block
∗
1
(input block, output block, solenoid
valve), and the unit supply current value (specification value) is exceeded, the SI unit IN-ERR LED will turn
ON, and the COM-ERR LED will flash. The power supply to each block
∗
1
will be disconnected.
•Over Current Protection setting SW-OFF (OCP-OFF)
When the over current load is connected with an input/output block
(input block, output block, solenoid
valve), and the unit supply current value (specification value) is exceeded, the SI unit IN-ERR LED will turn
ON, and the COM-ERR LED will flash.
The power supply to the input/output block
∗
1
does not change.
∗
: This switch at shipment from the Factory is OCP-ON.
∗
1: Input block only for EX250-SAS3/-SAS5.
Note
Using the SI unit with the setting OCP-OFF does not conform to the AS-I specification.
Therefore, please use the SI unit with OCP-ON.
Turn off the power supply and remove the cause immediately when over current load is connected with
the input block, and the peripheral fault error occurs by over current detection. Using the SI unit with the
peripheral fault error will cause unit damage.