EN
1. DEVICE OPER 02
OPER 02 is designed to control automatic elevator doors driven by a dc motor.
The device carries out the following functions:
·
Passive operation, one or two controls
All the adjustments are carried out by a trimmer
·
36 Vcc, 3A motor control with torque compensation and sensitive edge control.
Independent adjustment of the Operation Speed, Closing Speed and Sensitive Edge.
·
Photocell Amplifier
The circuit is designed for operation with a pair of transmitting-receiving (not reflection)
sensors.
·
Voltage-free contacts towards the control panel
Contacts are provided for the open/close limit switches, photocells and sensitive edge.
The operator is controlled by controlling the current which circulates inside the motor
by means of an adjustment system without feed-back.
The continuous compensation of the torque enables to ensure stability throughout time
in the speed adjustments and – in particular – to supply the whole torque required at
the final stage of door closing.
The adjustment is not linked to the power supply voltage; subsequently, power supply
of the device can be at different voltages in standard operation and in emergency,
provided that the limits are complied with.
The information relevant to the position of the doors is detected by means of three
monostable magnetic contacts (NO), RA-RC-EC which detect respectively the beginning
of slowing-down at opening, the beginning of slowing down when closing and the end
of closing (See Figure 3).
FIGURE 1 – AT THE NEXT PAGE – SHOWS THE LAYOUT OF THE CARD AND THE
CONNECTIONS TO THE EXTERNAL CIRCUITS.
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