INSTALLATION INSTRUCTIONS
12
Figure 7.
Count Input Operating Modes
#16 - PRINT REQUEST/RESET COUNTER
INPUT
Terminal 16 is a programmable input which may
be used in one of two modes. Function Code 84 is
used to select the desired mode.
Print Request/Display Latch Mode
When terminal 16 is energized in this mode, the
data specified in Function Code 91 is transmitted
through the Serial Data Output terminals. The data
is transmitted once each time terminal 16 is ener-
gized.
In this mode, terminal 16 also serves to latch the
count value on the display while the control contin-
ues counting. The display remains latched until
terminal 16 is deenergized.
Reset Counter Mode
In this mode, terminal 16 is used to reset the
counter without resetting the output sequence. If
the control is not in the sequential mode, terminal
16 defaults to the Print Request/Display Latch
mode.
#17 - RESET INPUT
When terminal #17 is connected to DC Common
through an external switch, relay, or sensor, the
counter is remotely reset. If the counter is in the
Reset mode, energizing this input returns the
counter value to zero. If the counter is in the Pre-
set mode, the counter value is changed to the pre-
set 3 value. If the control is in the sequential mode,
the reset input also resets the sequence. If the
Unlatch At Reset or Latch Until Reset Complete
mode of operation is selected for any outputs, the
input unlatches the selected combination of tran-
sistor outputs in addition to resetting the control.
The Reset input has the same function as the front
panel “RESET” key.
#18 - DOUBLE INPUT
Connecting the DOUBLE INPUT to DC Common
selects count doubling for either the Add and Sub-
tract or the Count with Direction Control count
modes. When either Quadrature or Doubled
Quadrature count mode is selected, the Double
Input must be connected to DC Common for
proper operation.
#19 - BATTERY OR EXTERNAL 11-16 VDC
SUPPLY
The power source can be either an external bat-
tery (11 to 16 volts) or a 15 VDC power supply.
Connect this terminal to the positive side of the
external low voltage supply and a DC Common
terminal to the negative side.
#20 - 15 VDC POWER OUTPUT
This terminal may be used to power external
devices such as sensors, a shaft encoder, or indi-
cator lamps. The terminal supplies a regulated 15
VDC (+1V, -2V) to the loads at a maximum of 100
milliamps. The 15 VDC supply is generated only
when the unit is powered by 115 or 230 VAC.
#22 THROUGH 24 AND #29 THROUGH 31 -
RELAY CONTACTS
Each of the 2 internal relays provides a set of 5
amp resistive dry form “C” contacts (SPDT) rated
COUNT MODE
INPUT 1
(Term. #14)
INPUT 2
(Term. #10)
Separate add and subtract
Count up with inhibit control
Quadrature *
Count with up/down control
Doubled quadrature*
Subtract counts
Add counts
Input A
Count input
Input A
Add Counts
Inhibit counts
Input B
Up/Down control
Input B
*NOTE For both Quadrature modes, the wires to inputs #1 and #2 may be interchanged to reverse count
direction Terminal #18 must also be tied to DC Common (terminal #8 or #12) for proper quadrature oper-
ation.
