6 Drives control
6.4 Braking
DC1 variable frequency drive 12/13 MN04020003Z-EN www.eaton.com 117
The brake chopper can be activated in parameter P-34. This function is only
available in variable frequency drives of size FS2 and FS3.
6.4.3 Mechanical brake (actuation)
An external mechanical brake can be actuated using one of the following
outputs:
• Transistor output DO: control signal terminals 8 and 9, maximum
24 VDC, P-25 = 6
• Relay output K1: N/O control signal terminals 10 and 11,
maximum 250 VAC / 6 A or 30 VDC / 5 A, P18 = 6
Figure 71: External brake actuated via K1
a Brake, released
b Brake activates and brakes the drive mechanically.
￫
In variable frequency drives without a braking transistor,
parameter P-34 has no function.
￫
If the DX-BR-100 integrated braking resistance is being used,
parameter P-34 should be set to 1.
If an external braking resistance is being used, parameter P-34
should be set to 2 and the braking resistance should be
protected externally.
P-19
f
[Hz]
K1
(P-18 = 6)
RUN
(FWD/REV)
t
STOP
P-05 = 2
①②
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