Veeder-Root TLS-50 Series, Руководство пользователя

Страница: 23 / 76

Probe Installation System Setup Security
18
System Setup Security
To protect against unauthorized access to system operation DIP switch 4 of SW1 on the Power Supply board lets
you lockout setup and diagnostic menus after making initial programming (for consoles w/display only). Consoles
are shipped from the factory with this switch in the open (disabled) position.
See Figure 15 for location of this switch. Figure 16 shows the switch in the closed position, enabling setup
lockout. Switch 2 and Switch 3 are not used and can be in any position.
Figure 16. DIP switch 4 in closed position to enable menu lockout
Overfill Alarm Relay
All consoles except those having form numbers 8469X0-060 and 8469X0-230 have one dry contact relay output
that closes when an overfill alarm is activated. You can connect an external audible/visual warning device to this
relay.
Important! Note these Output Relay Connection Restrictions:
1. Do not connect output relays to a device that draws more than 2 amperes of current. Output power: output
relay contact, resistive load - 120/240 Vac, 2 A max.
2. Alarm relays cannot be used for flow control. Alarm relays provide only a momentary closure and cannot
actuate flow control devices such as valves and pump motor relays for extended periods of time.
With power to the console turned Off, connect the two wires from the external warning device to the either of the
two overfill relay terminals (J5) [see Figure 17].
consoles\tls50\sw4.eps
Sw 4 - blocks access to
setup/diag menus after setup
(consoles w/display only)
SETUP
1 2
3
4
OPEN
OFF