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WELD SENTRY 2
The 15-pin "D" sub connector on the rear panel of the Sentry is used for remote schedule selection and to
remotely clear error status.
1. Use the mating connector provided in the ship kit of the Sentry.
2. Determine the correct pin number positions on the Control Signals connector, refer to Figure 8.
3. Wire the corresponding pins of the mating connector to a dry contact or logic level switch. Refer to
Section 4 - Specifications.
4. Plug the wired connector to the Control Signals input on the rear panel of the Sentry.
Figure 8 - Control Signals Connector on Rear Panel.
REMOTE SCHEDULE SELECTION
1. Pins 1, 2, 3, 4, 5, 12 and 14 of the Control Signals connector are used for remote schedule selection
using the BCD* codes from Table 2.
2. Select Schedules by shorting the appropriate pin(s) to ground Pin 11 using an external switch closure
(or logic level). The front panel Screen will change to display the selected schedule.
3. Maintain the switch closure during operation. Front panel selection of schedules will not be not
possible, however, Menu functions can be performed.
TABLE 2
SCHEDULE SELECTION CODES
BCD* CODE
0
1
2
3
4
5
6
PIN NUMBER
Pin 1
Pin 2
Pin 3
Pin 4
Pin 12
Pin 5
Pin 14
SCHEDULE
SELECTED
1 2 4 8 16 32
64
*Binary Coded Decimal - combine pins to select any other schedules,
CLEAR ERROR STATUS VIA EXTERNAL SWITCH
Any error status which can be cleared by pressing [RUN] can also be cleared externally by using the
remote schedule selection connections.
1.
The current schedule must be selected using Remote Schedule Selection.
2. During operation the schedule lines must remain CLOSED.
3. To clear an Error Status, OPEN the schedule selection lines momentarily and then CLOSED.
Summary of Contents for 3-131-XX
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