Terminal Box (Tb) Of Ffb Brake Motors; Optional Cable Gland (Pe); Wiring Diagrams; Motor - Nidec LEROY-SOMER FFB Guide D'installation

2.3.1 - Terminal box (TB) of FFB brake motors

The standard terminal box of the FFB brake motor has holes
on sides 1 and 3:
Side 3
Left
- frame size 71 to 132 S, SU: 4 x ISO M20 x 1.5
- frame size 132 SM, M, MU to 180: 2 x ISO M25 x 1.5 and
2 x ISO M20 x 1.5 (6 with accessories, wires spotted)
These holes are closed with threaded plugs.
An optional cable gland kit is available, otherwise procure the
necessary cable glands in accordance with the tables below.

2.3.2 - Optional cable gland (PE)

The cable sizes below are given for guidance only; follow the
supplier's instructions.
LS(ES) series, 400 V
Polyamide cable gland
Cable
Brake motor
gland
type
Min. cable
type
LS 71
1 ISO 20a
Accessories
(1)
LS(ES)
1 ISO 20
80 --> 132 S/SU
LS(ES)
1 ISO 25
132 SM, M, MU
LS(ES)
2 ISO 25
160, 180
(1) one ISO 20a per option: separate power supply, sensors, resistors, DMD...
≤ 5 ; for above, provide stranded wires
FLS*(ES) series, 400 V
Brass anchoring cable gland
Cable
Brake motor
gland
type
Min. cable
type
Accessories 1 ISO 20
(1)
FLSES
1 ISO 20
80 --> 112 MU
FLSES
2 ISO 25
132, 160
*FLS: add an ISO 12 on side 4 for brake connection in the terminal box
(1)
one ISO 20a per option: separate power supply, sensors, resistors, DMD...
≤ 5 ; for above, provide stranded wires
6
Side 4
Side 1
Right
Clamping capacity Tightening torque
(mm) (N.m)
Max. cable
Gland and body
Ø Ø
5 12 2
7 14 2
9 18 3
9 18 3
Clamping capacity Tightening torque
(mm) (N.m)
Max. cable
Gland and body
Ø Ø
6 10 4
8 12 4
11,5 18 6

WIRING DIAGRAMS

The terminal box is watertight once the cable glands have
been fitted and each cable gland is tightened on the cable
according to its cable size.
Adapt the cable gland and its reducer if present to the diameter
of the cable being used.
In order to maintain the brake motor's original IP55 protection,
it is essential to ensure the cable gland provides a total seal by
tightening it correctly (so that it cannot be unscrewed by hand).
When there are several cable glands and some are not being
used, ensure that they are always covered (threaded plugs)
and tighten them so that they also cannot be unscrewed by
hand.
1. Cable gland not
tightened
3 - WIRING DIAGRAMS

3.1 - Motor

Check the motor direction of rotation.
➀
➀ ➁
and Brake motor: wiring diagram under the TB cover
2. Cable gland seal in
contact
L1 - L2 - L3 L1 - L3 - L2
➁ ➂
1 SPEED - 2 VOLTAGES
L1 - L2 - L3
W2 U2 V2 W2
U1 V1 W1
U1
L1 L2 L3 L1
Installation guide FFB brake motors
3. Turn with a wrench
(360°)
➃
U2 V2
V1 W1
L2 L3
5286 en - 2021.01 / e