TRIMBLE GS820 LOCKOUT SETTINGS

Warning, alarm and lockout control is programmed in this menu. The GS820 can be programmed to generate alarms and lockouts for almost all programmed limits and two-block. Furthermore, warnings are generated when approaching programmed load limits and rated capacity (when applicable).

WARNING LEVEL - When gross load (regardless of tare value) approaches the maximum limit for a load sensor, an intermittent warning message is generated on the LCD. The maximum limit for a load sensor is the lower of; a) the operator set limit (Limit Menu), and b) the working load limit (WLL) if rated capacity charts are used. The proportion of a limit that must be reached to trigger the overload warning is the warning level. The default factory setting for the warning level is 90%.

1. Go to menu 4L)LOCKOUT SETTINGS.
2. Enter the user password (using Back, Next, Up and Down as described in Password settings section) and press Enter.
3. Select 1) WARNING LEVEL and press Enter to modify.
4. Use Up and Down to adjust the warning level and press Enter to confirm any change.
5. Press Down to select 2) ALARM LEVEL or press Exit to return to the operation display.

ALARM LEVEL - All programmed and rated capacity limits and two-block will generate an audible alarm when the alarm level is reached. Alarms will generate an intermittent alarm message on the LCD. The proportion of a limit that must be reached to trigger an alarm is the alarm level. The default factory setting for the alarm level is 100%.

1. In menu 4L), select 2) ALARM LEVEL and press Enter to modify.
2. Use Up and Down to adjust the alarm level and press Enter to confirm any change.
3. Press Down to select 3)LOCKOUT LEVEL or press Exit to return to the operation display.

LOCKOUT LEVEL - All programmed and rated capacity limits and two-block can generate a lockout signal when the lockout level is reached. By default the lockout wires carry crane power supply voltage as long as the display is in safe condition (to inverse lockout polarity see menu 4L) 8) LOCKOUT RELAY INVERTED). When a lockout level is reached voltage is cut on all lockout wires linked to the lockout condition (see menu 4L) 4) through 4L) 7)). The proportion of a limit that must be reached to trigger lockout is the lockout level. The default factory setting for the lockout level is 105%.

1. In menu 4L), select 3)LOCKOUT LEVEL and press Enter to modify.
2. Use Up and Down to adjust the lockout level and press Enter to confirm any change.
3. Press Down to select 4) WHITE WIRE LOCKOUT TRIGGER or press Exit to return to the operation display.

LOCKOUT TRIGGERS - Different events can be programmed to cut voltage on the lockout wires of the yellow cable. Each lockout wire can be linked to a different combination of lockout conditions.

1. In menu 4L), select 4) WHITE WIRE LOCKOUT TRIGGER and press Enter to modify.
2. Select which alarm conditions will trigger lockout on the white wire (see tables below).
3. Add the lockout codes for the selected alarms together to find the lockout trigger number.
4. Use Up and Down to adjust the white wire lockout trigger number and press Enter to confirm any change.
5. Press Down to select the next wire trigger line and repeat steps 1 through 5, or, press Exit to return to the operation display.