Shanghai STEP Electric Corporation
Chapter 4 The Wiring Of Elevator integrated Drive Controller
Figure 4.3 Wiring between Branch and Bus
◇ The Relation between TXV+、TXV-、TXA+、TXA- and Trailing Cable
TXV+、TXV-、TXA+、TXA- and other weak current signal cables (voltage not more than
24V) are allowed to share a same trailing cable. Other strong current signal cables (voltage
higher than 24V) shall be arranged at the other trailing cable.
Peels off the insulation sleeve of bus at the very vicinity of terminal point, connects the
section unpeeled but not cut off at one end of the terminal and leave another end connected to
branches.
Bus Specification: bus length ≤500m;
Branch Length: ≤3m;
Terminal resistance: 120Ω terminal –matching resistance should be arranged at both ends of
the bus. (Note: without terminal-matching resistance, the anti-interference capacity of
communication may be impaired)
4.3.3 Hoist way switch position
In elevator integrated drive controller system, hoist-way switch need to be arranged according to
the following two situations:
1. where the elevator speed is not more than 1.75m/s, it is required to install the two up and
down limit switch as well as two single-floor speed switch.
2. Where the elevator speed is more than 1.75m/s, not only the limit switches mentioned above
should be installed, but also up and down double floor forced slow car switch.
3． The detailed locations of hoist way switches see Figure 4.4 and table 4.1
Note: the switch locations vary based on the setting of deceleration slope. As a rule, the distance
for deceleration switch should always be set a little lower than the normal deceleration distance.
To Next Page
Loading...
Need help?
General
