5-
10
5
PA
RAMETERS
5-2 Parameter Description
PRM34: System mode selection
This parameter specifies the system operation mode. When you want to use the ERCX
controller in operating specifications that differ from normal mode, for example, to make
it compatible with the conventional controllers, change this parameter as explained below.
This parameter functions are allocated in bit units.
Input range:
0 to 255
Default value: 16
Function
Bit
0
1
2
3
4
5 to 6
7
8 to 15
General-purpose input definition for using
an I/O point movement command
READY output sequence setting
END output sequence setting when the
controller has started normally
Voltage check setting for system backup
battery
Absolute backup function setting
Reserved for system use
END output sequence setting at command
execution completion
Reserved for system use
Selected operating mode
Normal mode (DI0 to DI11)
Conventional compatible mode (DI0 to DI8)
DRCA compatible output mode
SRCA compatible output mode
Normal mode (to be output)
Conventional compatible mode (not to be output)
Check
No check
Disable
Enable
ON at normal command completion
ON at command signal OFF at normal command completion
Setting Addition value
Bit
15 to 8
0
0
4
1
16
6 to 5
0
0
7
0
0
3
0
0
2
1
4
1
0
0
0
1
1
PRM34
16+4+1=21
Setting
Addition value
Example: For conventional compatibility with I/O point movement command general-purpose inputs, and the END
sequence at normal controller startups, PRM34 should be set to "21" because of
0000000000010101(binary)=21(decimal)
Function allocation in bit units
0
1
0
1
0
1
0
1
0
1
0
0
1
0
0
1
0
2
0
4
0
8
0
16
0
0
128
0
Bit 0: General-purpose input definition for using an I/O point movement
command
This selects a general-purpose input used for an I/O point movement command
(ABS-PT, INC-PT).
In normal mode, use DI0 to DI9 to specify the point number and DI10 to DI11 to
select the speed. All points (P0 to P999) can be specified with a movement com-
mand.
In conventional compatible mode, use DI0 to DI7 to specify the point number when
PRM7 is set to other than 0, and DI8 to select the speed. Points P0 to P254 can be
specified with a movement command but points P255 to P999 cannot be selected.
If PRM7 is set to 0, use DI0 to DI6 to specify the point number and DI7 to DI8 to
select the speed. Points P0 to P127 can be specified with a movement command but
points P128 to P999 cannot be selected.
Bit 1: READY signal sequence setting
This selects whether to set the READY signal sequence compatible with the DRCA
or SRCA controller.
In DRCA compatible mode, the READY signal turns on at the instant that emer-
gency stop is released. In the SRCA compatible mode the READY signal turns on
when the servo is turned on. (The READY signal will not turn on just by releasing
emergency stop.)
Bit 2: END signal sequence setting when the controller has started nor-
mally
This selects whether to turn on the END signal when the controller has started
normally.
In normal mode, the END signal turns on when the controller has started normally.
In conventional compatible mode, the END signal remains off even when the con-
troller has started normally.
Содержание ERCX Series
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