7
Model
Life expectancy
E53-R Relay Output Unit
Mechanical
10,000,000 times min.
Electrical
100,000 times min.
Item
Specification
Max. heater current
Single-phase 50 A VAC (see note 1)
Heater current value display accuracy
±
5% FS
±
1 digit max.
Heater burnout alarm setting range
0.1 to 49.9 A (in units of 0.1 A)
(see note 2)
Min. detection ON time
190 ms (see note 3)
Note
1. Use the K2CU-F
A-
GS (with gate input terminals) for the detection of
three-phase heater burnout.
2. The heater burnout alarm is always OFF if the alarm is set to 0.0 A and al-
ways ON if the alarm is set to 50.0 A.
3. No heater burnout detection or heater current value measurement is pos-
sible if the control output is ON for less than 190 ms.
Refer to the
E5AJ/E5EJ Communications Manual (Z102) for details.
Item
Specification
Interface
RS-232C, RS-422, RS-485
Communications method
Half duplex
Synchronization method
Start-stop synchronization
(non-synchronization)
Communications speed
1200, 2400, 4800, 9600, and 19200 bps
Communications
item
Writing to
Thermac J
Set point, alarm value, heater burnout alarm
value, proportional band, derivative time,
integral time, and input shift value
Reading from
Thermac J
Process value, set point, alarm value, heater
burnout alarm value, heater current value,
proportional band, derivative time, integral
time, output value, input shift and error code
Output Unit
Heater Burnout Alarm
Model with
Communications Function
Specifications
Section 1-3
