Omron E5ZD Operation Manual page 21

E5ZD-4jjj-E/-6jjj-E Hardware
Connectors
Switches
CN1
Contains the power supply terminals, the memory bank input terminals, and the
control output terminals. The OMRON DIN-compatible connector XC5C-6422,
or equivalent, should be used for CN1.
CN2
Contains the alarm output terminals (i.e., the alarm, HB alarm, HS alarm, and
error alarm) and the input terminals from the E54-CT1 or E54-CT3 Current
Transformer (CT). The OMRON DIN-compatible connector XC5C-6422, or
equivalent, should be used for CN2.
CN3
Is used to inspect internal circuits and is not for customer use. Do not touch this
connector and do not remove the short pin from between pins 1 and 2. This con-
nector is provided on thermocouple models only.
CN4
Is used for RS-232C communications. The OMRON XM3B-2522-111 connec-
tor, or an equivalent, should be used for CN4. This connector is provided on
RS-232C models only.
CN6
Is used for RS-422 or RS-485 communications. The OMRON XM3B-0922-111
connector, or an equivalent connector, should be used for CN6. This connector
is provided on RS-422 or RS-485 models only.
TB1 (Terminal Block)
Is used to connect the thermocouples or platinum resistance thermometers. The
terminal section of this Terminal Block can be removed by loosening the screws
on both ends. To re-install that section, alternately tighten the screws little by
little.
The power must be turned off before changing any switch settings. Changes
made while the power is on will be invalid.
SW2
Is used to set the unit number that is used to identify the E5ZD during communi-
cations.
SW3
Is used to set the baud rate for communications.
SW4
Is used to set the type of sensor being used (i.e., either K or J for thermocouples,
and either Pt100 or JPt100 for platinum resistance thermometers) and the con-
trol temperature range.
SW5
Is used to set the functions that determine E5ZD operation. These include selec-
tion of either normal operation or the communications test (loop-back test), com-
munications or contact inputs designating the current memory banks, the use of
Celsius or Fahrenheit, and operation or non-operation when power is turned on.
SW7, SW8
The terminator is the E5ZD Unit located farthest from the host computer. Turn
ON SW7 and SW8 (terminator switches) on the terminator with the RS-422 com-
munications specification and SW8 on the terminator with the RS-485 communi-
cations specification. SW7 and SW8 on Units other than the terminator must be
turned OFF (refer to 2-1-4 Communications Interfaces).
Section 2-1
11