Battery Life - Delta DVP-20PM Instruction Sheet

Differential outputs with ASDA-A & A+, ASDA-A2 series driver
DVP-20PM differ ential output
F P
RP
Differential outputs with ASDA-B series driver
DVP-20PM diff er ent ial output
F P
RP
Differential outputs with ASDA-AB series driver
DVP-20PM differ ential output
F P
RP
BAT.LOW indicator
BAT.LOW indicator will be on when the battery is in low voltage. When this happens,
change the battery as soon as possible in case your program and data saved in the
latched area will be lost.
After the power is switched off, the data in the latched area are stored in SRAM memory
and its power is supplied by the battery. Therefore, when the battery is in low voltage
and the power-off has been lasted for more than 1 minute, the data in the latched area
will be lost. If you need to permanently save the data in the latched area in the program
and device D, refer to "Flash ROM permanently saved and recover mechanism" as
stated below.
Permanently saved mechanism
You can use PMSoft (Options -> Copy SRAM to Flash) to indicate whether to
permanently store the data in the latched area in Flash ROM memory (new indicated
data will replace all data previously saved in the memory).
Recover mechanism
If the battery is in low voltage (before the power is switched off when the BAT.LOW
indicator is on) and the power is off for more than 1 minute, PLC will automatically
restore the data in the latched area in the program and device D of Flash ROM into
SRAM memory next time when it is re-powered.

Battery Life

Temperature (ºC)
Life (year)
FP+
FP-
Twisted pair
cable
RP+
RP-
FP+
FP-
Twisted pair
cable
RP+
RP-
FP+
FP-
Twisted pair
cable
RP+
RP-
-30 0
10 9
Dr iver
/P LS 43
PLS 41
FG0
36
/SIGN
SI GN 37
Dr iver
/P LS 21
PLS 22
FG0
/S IGN 19
SI GN 20
Dr iver
PLS 43
/P LS 41
FG0
36
SIGN
/S IGN 37
25 50
8 6
- 7 -
Cir cuit for
Photocouple
Cir cuit for
Photocouple
[ Figure 17 ]
Circuit for
Photocouple
Circuit for
Photocouple
[ Figure 18 ]
Cir cuit for
Photocouple
Cir cuit for
Photocouple
[ Figure 19 ]
70
5