Conn. Agencies Regs. § 19-411-C22 - Terminal stopping devices
(a)
Stopping
devices. Upper and lower terminal stopping devices operating by the car
shall be provided and shall be set to stop the car at or near the upper and
lower terminal landings. Upper and lower final terminal stopping devices
operated by the car shall also be provided which will remove power from the
motor brake.
(b)
Operation of
stopping devices. The final terminal stopping device shall act to
prevent movement of the platform in both directions of travel. The normal and
final terminal stopping devices shall not control the same switches on the
controller unless two or more separate and independent switches are provided,
two of which shall be closed to complete the motor and brake circuit in each
direction of travel.
(c)
Assurance of motor reversal. A protective circuit or device shall
be provided where a non-instantly reversible motor is used that will prevent
the motor from continuing in the same direction if the reversing control is
activated.
Notes
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