User's Manual

GM550 v1043 FCC-IC.doc Revision 2 27
The following conditions will not trigger lockout; they will generate an alarm:
• Minimum list angle
• Maximum list angle
• Minimum heel angle
• Maximum heel angle
• Maximum rope speed
Lockout Relay Inversion
WARNING! Inverting lockout relays will allow crane operation in the event the GS550
display fails. Operating a crane without a functioning anti-two-block system and load
and angle indication is dangerous and may be against the law.
By default the lockout wires carry crane power supply voltage as long as the display is in
safe condition. When a lockout level is reached voltage is be cut on all lockout wires linked to
the lockout condition (see menu pages 4G4 through 4G7). Lockout is lifted only as long as
the display functions and the safe conditions are met (see menu pages 4G1 through 4G7).
Exceptionally the lockout relay can be inverted so that lockout wires carry no voltage in safe
condition and carry crane power supply voltage when in a triggered lockout condition. In this
case if the display fails, crane functions will not lockout.
Step 1. Press Menu → Next → Next → Next → Enter → Next → Next → Next→ Next
→ Next → Next → Enter → Back to access menu 4G8) Lockout relay inverted.
Step 2. Use Up and Down to switch between “yes” and ”no”.
Step 3. Exit three times to return to the operation display.
Password Settings
Three levels of access are available: administrator, operator and public. The administrator
password is required to change the operator password. In the event both the administrator and the
operator passwords are lost please call your LSI representative. Menus accessible from the
operation display can be individually protected by the operator password.
Step 1. Press Menu → Next → Next → Next → Enter → Next → Next → Next→ Next →
Next → Next → Next to access the menu 4H1) Set administrator password.
Step 2. 4H1) Set administrator password: Press Next three times to advance to the set user
password page or, to change the administrator password, use Up and Down to adjust
the flashing letter and then use Next to advance to the next letter. Press Enter to save
any changes.
Step 3. 4H2) Set user password: Press Next three times to advance to the tare menu
protection page or, to change the user password, use Up and Down to adjust the
flashing letter and then use Next to advance to the next letter. Press Enter to save any
changes.
Step 4. Menu 4H3) Tare protected: use Up and Down to switch between “yes” and “no” and
press Next to advance to the next menu page.
Step 5. Repeat step 4 to adjust password protection for each menu as required. Press Enter at
any time to save changes made. Press Exit at any time to return to menu 4)
Installation. If there are any unsaved changes the display will request confirmation:
press Enter to save before quitting or press Exit to quit without saving.