Owner`s manual

OM-263 001 Page 32
6-9. Changing Optional Settings
! Disconnect and lockout/tagout in-
put power. Follow established pro-
cedures regarding the installation
and removal of lockout/tagout
devices.
1 Controller Circuit Board
Open control panel access door and intern-
al electrical panel to access circuit board.
2 Terminal Block TB2
3 Disable Setpoints Adjustment
4 External Alarm Reset
5 Mode Jumper Block J5
6 Internal Alarm Disable
7 Terminal Block TB4
8 Analog Sensor Out Terminals 13 And
14
To Disable Setpoint Adjustment (TB2)
To restrict setpoint changes, install a jump-
er wire across the Prog. Disable terminals
(3 and 4) on terminal block TB2. The cur-
rent settings will still be displayed, but no
changes can be made until the jumper is re-
moved. Interrupting the jumper with a
key-operated, normally-closed switch in-
stalled in the enclosure door provides tem-
porary access to the setting functions
without opening the door.
To Reset/Disable External Alarm (TB2,
Terminals 5 And 6)
If desired, wire the Arm Reset terminals (5
and 6) on terminal block TB2 to a key−oper-
ated, normally−open switch. Closing the
switch turns the alarm off.
To Disable Internal Alarm (J5)
To disable the alarm internally, remove the
jumper on Mode jumper block J5. Disabling
the alarm relay reduces the alarm function
to the Alarm LED visual display only.
Auxiliary Relay Output (J5, Terminals
10, 11, 12)
If the jumper on Mode jumper block J5 is not
installed, the auxiliary relay output will not
function.
If the jumper is installed in the Alarm mode
position, the auxiliary relay output activates
based on the setting of the Alarm setpoint.
If the jumper is installed in the Slave mode
position, the auxiliary relay output activates
in parallel with the Hi/Lo control relay.
Analog Output (TB4, Terminals 13 And
14)
Terminal block TB4 terminals 13 and 14
provide a 4 to 20 mA output proportional to
the 0−to−maximum span of the pressure
sensor. This circuit requires a 10k ohm min-
imum load.
1
3
7
42
5
6
8
 Board is located inside electrical panel.
257126-A