5
INSTALLATION AND MAINTENANCE
GEARLESS Z2 - Z3
A.C. Drive for elevators
LEROY-SOMER
3862 en - 07.2004 / a
Z2-Z3 Cast iron shield
4.1.2 - Mechanical installation
- The GEARLESS machine must be installed on a chassis
that is not subject to vibrations and must be secured. Cast
iron shield = 4 M14 bolts and washers, fabricated steel shield
= 4 M12 bolts and washers. The bolts must only be tightened
when the cables, car, counterweights and driving pulley are
perfectly aligned. Before installing the cables, check that the
driving pulley can be rotated freely by hand when the brakes
are released.
Z2-Z3 Protection
- Check that the cables are of the correct type for the pulley.
- When the cables have been installed, adjust the distance
between the cables and the protection then tighten the
guards.
CAUTION: There is a high risk of jamming between
the cables and the pulley.
4.2 - Wiring
- See the connection diagrams below.
Fig. 1
Motor cable length 2 m
Length of thermal sensor cable 2 m
Fig. 2 - Motor connection
Brake wiring
- Continuous supply (see name plate).
- Connect the motor using cables of the correct cross-section
(the cables and tags must be sized according to the current:
see the table below). Particular care must be taken to tighten
the nuts on the terminals. (Incorrect tightening may lead to the
connections being damaged by overheating: see the diagram
below.)
This table is given for information only, and must under no
circumstances be used in place of the current standards.
The recommended cross-sections are given for a single-
wire cable, with a maximum length of 10 m. Above this,
line drops due to the length must be taken into account.
Points d'ancrage
pour levage
Anchoring points
Fixing screws
Points d'ancrage
pour levage
Groove
protection guard
Phase output
U
Phase 1
V
Phase 2
W
Phase 3
Ground/Earth
Green/Yellow
Phase output
1
PTC
2
PTC
Type
Colour
Marking
Brake power supply
Yellow
- BM
Green
+ BM
Microswitch
White
CM1
Brown
CM2
Rated current (A) per
9.5
12
16
25
34
40
46
Min cable section (mm
2
)
1.5
1.5
2.5
4
6
10
10
AWG
15
15
13
11
9
7
0
approx: 2 m
U
U1
C1
C2 U2
W
W1
V1
V
V2
W2
