Omron E5ZD, Руководство по эксплуатации

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16
CN2
Terminal Assignments The following table shows the terminal assignments for CN2. All alarm and error
outputs are open-collector outputs.
Note Open-collector outputs are not protected from excessive current flow; be sure to
wire them correctly to protect internal circuits from damage.
ALARM1G and ALARM2G are the emitters and ALARM1 and ALARM2 are the
collectors for alarm 1 and alarm 2, respectively. The HB alarm output goes ON
when the detected current falls below the set heater current. The HS alarm out-
put goes ON when there is a current flow of 0.5 A or more on the CT when the
control output of the E5ZD is OFF. The error output goes ON when an abnormal-
ity is detected within the E5ZD. CT terminals are not polarity sensitive and may
be connected as desired to the CT input terminals. The same signals as on CN6
are placed on terminals 22 through 24 when RS-422 or RS-485 communications
are used. For the E5ZD-4
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-E, terminals 31 and 32 are also not used.
Terminal Row a (bottom) Row b (top)
Name Function Name Function
1 ALARM1G Alarm output 1 (–) ALARM1 Alarm output 1 (+)
2 ALARM2G Alarm output 2 (–) ALARM2 Alarm output 2 (+)
3 to 14 Not used. Not used.
15 HBALMG HB alarm output (–) HBALM HB alarm output (+)
16 HSALMG HS alarm output (–) HSALM HS alarm output (+)
17 Not used. Not used.
18 TCTRBLG Error output (–) TCTRBL Error output (+)
19 to 21 Not used. Not used.
22 SG RS-422: SG Not used.
23 SDA, (–) RS-422: SDA, RS-485: (–) SDB, (+) RS-422: SDB, RS-485: (+)
24 RDA RS-422: RDA RDB RS-422: RDB
25 and 26 Not used. Not used.
27 CT0 Point 0 CT input CT0 Point 0 CT input
28 CT1 Point 1 CT input CT1 Point 1 CT input
29 CT2 Point 2 CT input CT2 Point 2 CT input
30 CT3 Point 3 CT input CT3 Point 3 CT input
31 CT4 Point 4 CT input CT4 Point 4 CT input
32 CT5 Point 5 CT input CT5 Point 5 CT input
CT Inputs CT terminals are not polarity sensitive and may be connected as desired to the
CT input terminals.
CT input
E54-CT1/CT3
CT input
E5ZD
Sensor Connections Temperature sensor lead wires are connected to TB1 as shown below. Be sure
to secure the lead wires so that they do not come into contact with E5ZD compo-
nents.
E5ZD-4
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-E / -6
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-E Hardware
Section 2-1