User's Manual

10 Revision 2 GM550 v1043 FCC-IC.doc
Keypad
The keypad consists of six buttons used to control, consult, program, and troubleshoot the GS550
display and system. Each button has two functions; a primary (operation) function and a secondary
(menu) function for navigation and programming. The secondary functions are described in the
section GS550 Menu System.
Primary functions:
Bypass: Press Bypass to override lockout for emergency purposes*.
The alarm will remain silent until the next alarm; lockout will re-engage as
soon as the button is released.
Tare: Zero the hook and rigging weight.
Step 1. Press Tare to enter the tare menu.
Step 2. Use Next to select the load sensor.
Step 3. If no tare value, then press Tare to create a tare value equal
to the weight on the load sensor. Example: with hook block
and rigging only. Load display is net weight (gross weight
minus tare value).
Step 4. To remove tare value, press Tare.
Step 5. Press Bypass to return to the operation display.
Tare Indicators
Load Indication
LCD Tare Light LCD Bar Graph
No tare value Off Gross Weight Gross weight
Tare value = x
On
Net Weight Gross weight
Table: Tare indicators and load indication
Hoist: Press Hoist to change the operating display page. The exact
order and content of operation display pages depends on system sensor
and capacity chart configuration. Systems with more than one load
sensor typically display main hoist load information on the first page and
auxiliary hoist load information on the second page.
*
This applies only if the GS550 has been correctly installed to control crane lockout function.