Step Electric iAStar-S3, Инструкция по эксплуатации

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Instruction Manual of -S3 Inverter for Elevator
ranges from -5V to +5V, the difference (range) of AI2 analog input voltage is 10V, and H07
(AI2 analog gain) = 20/10 = 2.
H07 shall be adjusted on site according to actual conditions. If the parameter is set to
positive compensation, for example, put the elevator under repair mode, set the checking
speed to 0, let the elevator start free of load (with the car side lighter), if the elevator
dashes upward, it means the compensation is not high enough. H07 shall be increased
gradually until the elevator does not dash. On the other hand, if the elevator dashes
downward, the compensation is too high, and H07 shall be lowered until the elevator does
not dash.
H08 is the filtering time of AI2 analog input signals. Increases in H08 may improve the
resistance of the pre-load signals to electromagnetic interferences, but too high value may
also result in slow response. Generally, the default setting is used, that is, H08 = 20ms.
7.9.2 Bus Low-voltage Operation for Emergency Leveling
Upon emergency power-off during operation, the elevator may be stuck in the shaft, with
the passengers still in waiting for related personnel to manually move the car to release
them. This will result in too much trouble for the passengers. Therefore, in many
applications, the elevator shall be equipped with an emergency leveling device. However,
since a stand-alone leveling device is very high in cost, an emergency leveling device may
be obtained simply through a low-speed running function of the Inverter at low voltage
(during power-off, storage batteries are used for power supply, normally with a total of
around 48V, or 220V UPS may be used) in addition with some special settings on the
elevator controller. In this way, stranded passengers may be released upon emergency
power-off, and the cost is relatively low.
For the bus low-voltage operation, a digital input shall be defined to receive the
emergency powering signal. F01 may be set to 6, and DI1 will be defined as the input port
of emergency power triggering signal. When DI1 is connected, the Inverter enters the bus
low-voltage operation mode, i.e., the Inverter will keep running when the bus voltage is as
low as 48V. There are two modes, one powered by storage batteries, with the Inverter
powered by UPS. The main circuit is shown in Figure 7.11. The storage battery used is of
48V (normally four in serial, each of 12V) and no less than 20Ah.
开
Application of Elevator
7-
31
关电源 控制回路
R0
T0
2 -
+
UPS 220VAC
蓄电池 +
-
Storage
battery
Power
supply Control
circuit
Figure 7.11 Bus circuit powered by UPS and storage battery