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Atwell International Limited
Instructions For Rescue
Operations/Hand Winding
RELEASE INSTRUCTIONS
1. Check the visual displays on the “VGOSG-CB01A” control box.
2. Investigate reason for engagement and carryout appropriate action.
3. Read local hand winding instructions.
4. Ensure Mains Isolator is switched off.
5. On the “VGOSG-CB01A” control panel insert the key and turn first to the bypass
and then to the “RESET” position.
6. The actuator on the VG OSG will power through a resetting sequence.
7. When the “SET OK” LED is illuminated, turn the key switch to “RUN”.
8. Turn the second key switch to “Hand winding”.
9. The VG OSG will now monitor for overspeed to a maximum mechanical trip of
0.4m/s and electrical trip of 0.3m/s.
10. Handwind the machine in accordance with local instructions.
NOTE: If no mains power and the battery backup has failed, manual
disengagement of the VG OSG will be required. It should also be noted that no
overspeed or unintended movement detection will be available in this condition.
TO RE-INSTALL LIFT SERVICE FOLLOWING HAND WINDING
1. Ensure all safety circuits are reset and the corresponding LED’s on the
“VGOSG-CB01” are illuminated
2. Ensure the reason for engagement has been investigated and appropriate
action taken.
3. Ensure the VG OSG has been fully reset
4. Ensure Key Switch for “hand winding is back in the “off” position.
5. Turn key switch back to “RUN” position and remove key.
6. Check lift is working correctly.
If Bi-Directional VG Rope Brake Installed
Disengage Before Hand Winding
