Omron EJ1G User Manual page 102

Setting Control Specifications
Note
• The following table lists the errors for which error operation is determined
for each parameter
Parameter name Error for which operation is
Operation During • Programless link errors
Error (Selection A)
Operation During • Input errors
Error (Selection C)
• G3ZA zero-cross errors
• Communications error with
G3ZA
Operation During • Heater overcurrent
Error (Selection D)
• HB (heater burnout) alarm
• HS (SSR failure) alarm
• Each setting indicates the operation when the error occurs.
Setting
0: Notification only Control continues.
(Continue)
If, however, the Operation During Error (Selection C) parame-
ter is set to 0 (Notification only (Continue)) and an input error
occurs, the MV at PV error will be output.
1: MV at error The value set for the MV at PV Error parameter is output and a
normal output is restored when the error has been cleared.
The MV at PV error is set using the MV at PV Error (variable
type D5/95) parameter. Refer to MV at PV Error on page 75
for details.
2: Control stop Control stops. To start control again, clear the error then exe-
cute a RUN operation command.
For the Operation During Error (Selection D) parameter, how-
ever, the current cannot be recalculated because control is
stopped, so the error cannot be cleared. To restart control,
first execute a Reset Error operation command then a RUN
operation command.
The error that has occurred can be checked by reading the status.
Operation examples for the group settings shown in the following diagram are
listed below.
0
PLC
H
F
U
Group 1 (gradient)
• If a programless link error occurs while the Operation During Error (Selec-
tion A) parameter is set to 1 (MV at PV error):
The value set for the MV at PV Error parameter for each channel is output
for each channel.
determined
Operation at error
1 2 3 4
TC2 TC2 TC2 TC2 TC2 TC2
CH1 CH3 CH6 CH9 CH11 CH14
CH2 CH5 CH7 CH10 CH13 CH15
Group 2 (gradient)
Group 3 (gradient)
Group 4 (2-PID)
Section 5-3
Operation target
All channels
Gradient temperature control:
Individual groups
2-PID control: Individual chan-
nels
Same as above
5 6
E
D
U
G3ZA
81