Omron E5ZD, Operation Manual

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39
Connectors
CN301
Contains the power supply terminals and the RS-422 or RS-485 communica-
tions for an 8-point Controller with heater burnout detection. The OMRON
DIN-compatible connector XC5C-6422 or equivalent should be used for CN301.
CN324 and CN325
Are used for sensor input. G79-
jjj
cable should be used for connecting Ter-
minal Blocks either for thermocouple input (E54-TR011) or for platinum resis-
tance thermometer input (XW2B-20G4 or XW2B-20G5).
CN326
Has terminals for connecting E54-CT1 or E54-CT3 Current Transformers and
for memory bank designation inputs. G79-
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cable should be used for con-
necting XW2B-20G4 or XW2B-20G5 Terminal Blocks.
CN327
Has output terminals for control outputs, Alarm 1 and Alarm 2 outputs, HB alarm
outputs, and Temperature Controller error alarm outputs. G79-
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cable
should be used for connecting OMRON I/O Relay Terminals (G7TC-OC16,
G7TC-OC08, and G7VC-OC16). By connecting to an XW2B-20G4 or
XW2B-20G5 Terminal Block, signals can be obtained directly.
CN502
Is used for communications. For this connector, an OMRON XM3B-0922 or
equivalent should be used.
Switches The power must be turned off before changing any switch settings. Changes
made while the power is on will be invalid.
SW303
Is used to set the unit number that is used to identify the E5ZD during communi-
cations.
SW501
Is used to set the baud rate for communications.
SW502
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.
SW503
Is used to set the functions that determine E5ZD operation. These include selec-
tion of either normal operation or the communications test, communications or
inputs designating the current memory banks, the use of Celsius or Fahrenheit,
and operation or non-operation when power is turned on.
SW507 and SW508
Are terminator switches for activating the termination resistance when RS-422
or RS-485 communications are used. The switch must be turned on at the termi-
nator. (i.e. the E5ZD Controller located farthest from the host computer).
Others
Card Pullers
Are used to remove the E5ZD when it is mounted to a rack. It is not necessary
when the E5ZD is screwed in place.
Mounting Screws
Are eight mounting holes provided for mounting the E5ZD. In order to maximize
resistance to vibration and shock, use all of the holes.
2-3-4 Connector Allocations and Wiring
Allocations and wiring guidelines for connectors and Terminal Blocks are pro-
vided on the following pages.
E5ZD-8H
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M-E Hardware
Section 2-3