Delta DVP-EH3

- 8 -
y DVP32EH00M3/MT differential output with ASDA-B series driver
Y0
Y1
DVP32EH00 M3/M T di fferen ti al o utput Driver
/P L S
PLS
/S I GN
SI GN
Circuit for
Photocouple
Twist ed pair
ca b le
Ci rc u it f o r
Photocouple
21
22
19
20
SG 0
Y0+
Y0 -
Y1+
Y1 -
[ Figure 17 ]
y DVP32EH00M3/MT differential output with ASDA-AB series driver
Y0
Y1
DVP32EH00M 3/M T di fferenti al ou tpu t Driver
PLS
/PLS
SIG N
/SIGN
Ci rc u it f o r
Photocouple
Twisted pai r
cable
Circuit for
Photocouple
43
41
36
37
SG 0
Y0+
Y0-
Y1+
Y1-
[ Figu re 18 ]
 BAT.LOW indicator
If the voltage of the battery is so low that the BAT.LOW indicator is on, please replace
the battery as soon as possible to prevent the program and the data in the retentive
areas from disappearing. After the power is turned off, the data in the retentive areas will
be stored in the SRAM, and the battery will supply power to the SRAM. If the voltage of
the battery is low, and the power has been turned off for more than one minute, the data
in the retentive areas will disappear. As a result, if you need to permanently store the
program and the data in the retentive data registers, you can use the mechanisms
described below.
Mechanism for storing data permanently:
You can decide whether to permanently store the program and the data in the retentive
data registers in the flash ROM in the PLC by using WPLSoft (Options -> PLC Second
Backup Setting). The data which need to be permanently stored will replace the data
which was previously stored in the flash ROM.
Mechanism for restoring data:
If the voltage of the battery is low (the BAT.LOW indicator is on before the power is
turned off), and the power has been turned off for more than one minute, the PLC will
automatically restore the program and the data in the retentive data registers in the flash
ROM to the SRAM next time the power is turned on.
Battery lifespan:
The lifespan of the battery attached to the product is about 2~4 years. (It depends on
environmental factors.) Users should replace the battery regularly before the BAT.LOW
indicator is on.
 Accuracy of the RTC (Second/Month)
Temperature (ºC/ºF) 0/32 25/77 55/131
Maximum error (Second) -117 52 -132