31
For a totalizer with relays, the number of choices for the Lock function increases, the
Reset choice remains the same, and another function category, U (Unlatch) ap-
pears. An unlatch input will turn one or both relays OFF if they have been latched ON
at a rate or total setpoint. Unlatch functions can be combined with the reset function
simply by programming a control input or the reset key to do both. Control inputs
programmed to lock may lock out any combination of the program mode, the relay 1
setpoint (P1), and the relay 2 setpoint (P2). Lock inputs cannot be programmed to do
any unlatch or reset function, and the front panel reset key cannot be programmed
as a lock input.
All totalizers have programming blocks L1 through L4. The default value for each
block is 000, which decodes out to be no unlatch (U function), no lock (L function),
and no reset (R function). In block L4, the reset key cannot be programmed to do a
lock function, so the L value remains at 0, and the edit key skips this category. For
totalizers without relays, there are no unlatch functions; therefore the U value re-
mains at 0 and the edit key skips the U category.
Batchers have blocks L1 through L4 plus blocks L5 (start key) and L6 (stop key). In
addition to all the input choices available to the totalizer with relays, batchers have
more choices for L (Lock) functions and R (Reset) functions, and also have S (Start/
Stop) functions. The default value for blocks L1 through L6 is 0000, which decodes
out to be no Start/Stop (S function), no unlatch (U function), no lock (L function), and
no reset (R function). Control inputs can be programmed to do a lock function or any
non-opposing combination of start/stop, unlatch, and reset functions. An example of
opposing functions would be Start (which turns ON relay 1), and Unlatch 1 (which
turns OFF relay 1). Attempting to program opposing functions will cause the display
to read “Lb Err” when the
View
Enter
key is pressed. The front panel reset key cannot be
programmed for a start/stop function or for a lock function, so the S and L values in
block L4 remain at 0 and the edit key skips these categories. The front panel start
key cannot be programmed for a lock function, or for the start/stop function of stop.
The front panel stop key cannot be programmed for a lock function or a reset function
or start.
The input function selection table is shown below. Pick the appropriate S, U, L, and
R values from the table for programming blocks L1 through L6.
Control Input / Key Function Table
Totalizers
U
L
R
0 No Unlatch
0 No Lock
0 No Reset
1 Unlatch Output 1
1 Lock Pgm
1 Reset Total
2 Unlatch Output 2
2 Lock Pgm & P1
3 Unlatch Outputs 1&2
3 Lock Pgm & P2
4 Lock Pgm, P1, & P2
PGM = Program Mode
P2= Output 2 Setpoint
P1 = Output 1 Setpoint
PROGRAMMING cont.
