8
Atwell International Limited
The governor has the linear actuator as standard for remote re-setting. This
resets the governor each time power is connected and following actuation of
the governor by either an over-speed or by the UMD control. The actuator is
powered by 12 volts dc to enable the governor to function under battery back-up.
The governor is to have a plug in facility to interrogate the control system without
the need to gain access to the control box itself. This will be made available only
to restricted personnel for verifying speed settings etc.
The resetting of the governor is to be via a separate control box (VGOSG CB01A)
remote from the governor. This control box is fitted with a battery back-up as
standard.
The main control box on the governor has limited external displays, ie
a)
Reset Mode Enabled
b)
Set OK
c)
Warning / Fault Detected
d)
Overspeed Detected
e)
Unintended Movement Detected
f)
Doors Closed
g)
Motor Running
The status of the governor is verified by micro-switches actuated by the 12
mm rod extending from the drop weight. Switches are provided for both the
“engaged” and “released” conditions. These switches, in conjunction with the
governor control system can be used to relay the state of the governor to the lift
control system.
The governor can be fitted with a “safety” switch in accordance with EN81 as
an optional extra. This will be actuated by the handle on the reverse side of the
governor.
Governor Features
