2-6
Section
Wiring CT Inputs and Control/Alarm Outputs
22
•
When connecting a relay load, insert a diode to prevent surge.
E5ZE
ch n: Control point 0 to 7
ch n +
ch n –
Relay
•
The following diagram shows the wiring when designating the memory bank
using contact inputs.
No Contact Input
Contact Input
E5ZE
Terminal
numbers 2,
3, and 4
Terminal
number 1
E5ZE
Terminal
numbers 2,
3, and 4
Terminal
number 1
ON: Short-circuit resistance: 1 k
Ω
max.
Outflow current:
3 mA DC
OFF: Open resistance:
100 k
Ω
min.
ON: Residual voltage:
2 VDC
max.
Outflow current:
3 mA DC
OFF: Leakage current:
1 mA max.
The ALARM connector can be used with the following devices.
•
XW2B-20G5 or XW2B-20G4 Connector Terminal Conversion Unit
•
G7TC-OC16, G7TC-OC08, or G7VC-O
16 I/O Block
The following diagram shows the terminal arrangement when the ALARM con-
nector is connected to an XW2B-20G5 or XW2B-20G4 Connector Terminal
Conversion Unit. In the diagram, RL indicates a relay load.
Cooling control output (Do not use these terminals with E5ZE-8A
Standard Models.)
Don’t use
Don’t use
Don’t use Don’t use Don’t use
Common
Common
Temperature controller error
HS alarm HB alarm
Alarm 2
Alarm 1
ch 7
ch 6
ch 5
ch 4
ch 3
ch 2
ch 1
ch 0
•
The following table shows the specifications for alarm output and cooling con-
trol output. The E5ZE does not have an overcurrent protection function for
alarm output and cooling control output. Connect a load to each alarm output
and cooling control output that corresponds to the output ratings.
Output
Specifications
Open collector output
NPN, 30 VDC, 50 mA max.
Residual voltage when ON: 2 VDC max.
Leakage current when OFF: 1 mA max.
•
Do not use the terminals marked “Don’t use.”
ALARM Connector Wiring
