M 2 Rated Torque Adjustments - Kendrion EEX Series Operating Instructions Manual

Warning!
Before starting the machine (e.g. motor) test run without driven components, the feather key (if used) must be
secured in such a way that it cannot be hurled out. Ensure that the shaft is not exposed to load torques. Before
the machine is re-started, the brake must be de-energized.
Caution!
The brake surface temperature may reach up to 95°C. Heat-sensitive parts such as conventional cables or
electronic components must not be fixed to or be in contact with these surfaces. If necessary, suitable
protections and hand guards must be installed to avoid accidental contact with hot surfaces! If the shaft needs
to be turned during set-up operations while the machine (e.g. motor) is switched off, the brake must be released
electromagnetically or by means of the hand release (29).
Attention!
High-voltage tests performed during brake installation within an overall system or during start-up must be
carried out in such a way that damage to the built-in electronic accessories is avoided. The limits for high-
voltage tests and follow-up tests specified by DIN VDE 0580 must be observed.
Attention!
Check that the brake has been connected in accordance with the specifications provided on the rating plate
before it is put into operation. Even short-term operation outside the specified supply voltage limits may cause
irreversible damage to the brake or electronic accessories. Such damage may not be apparent immediately.
DC side brake switching without protective circuit as described in Section 3.4 will cause damage to electronic
rectifiers, electronic accessories, switching contacts and to the field coil (1.2).
3.6 M rated torque adjustments
2
The brakes are factory-adjusted to the M
in the purchase order). The factory-adjusted M
specified on the rating plate (33) of the brake. In case fine
adjustment is required, the M
reduced. However, increasing the M
In order to adjust the torque, proceed as follows: Loosen the socket
head cap screws (20) provided on the cover (7) and remove the
cover (7). Screw in the socket head cap screw (32) clockwise by
means of a screwdriver, making sure to secure the nut (31) in such
a way that it cannot turn. Fine adjustment must be carried out by tightening the socket head cap screws (32)
evenly in several steps. Check that the requirements in terms of the minimum length of projection x
Table 18/1) of the socket head cap screw (32) from the flange (3) are met. The change in the M
resulting from these adjustments is specified in Table 18/1. The factory-set nominal value (approximate value)
of the length of projection x
∆M /mm [Nm]
2
x [mm]
nom
x [mm]
min
Table 18/1: Change in the M
minimum permissible projection x
rated torque (as specified
2
2
rated torque can be continuously
2
rated torque is not allowed.
2
(see Table 18/1) is marked on the flange.
nom
10 11
0.5 0.65
10.5 10.5
7.5 7.5
rated torque from 1 mm axial adjustment of the socket head cap screw (32);
2
min
Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 18 of 34
rated torque is
Size
13 16
4 7.5
11.5 11
9 9
(see
min
rated torque
2
19 24
7.5 10
11 11
9 9