Brake Control Function - Emerson Mentor MP Advanced User's Manual

Parameter
Menu 12
structure
5.13.1

Brake control function

The brake control function can be used to control an electro-mechanical brake via the drive digital I/O.
12.40 Brake release
Bit SP
Coding
1
Update rate Background read
This parameter should be used as a source for a digital output to control an electro-mechanical brake. This parameter is one to release the brake and
zero to apply the brake. Digital I/O can be automatically configured to use this parameter as a source (see Pr 12.41).
Brake controller enable
12.41
Coding Bit SP
Range 0 to 3
Default 0
Update rate Read on drive reset
0 = dis
The brake controller is disabled and no other drive parameters are affected by the brake controller. When this parameter is changed from a non-zero
value to zero the following parameters are set to zero: Pr 2.03, Pr 6.08, Pr 13.04 and Pr 13.10 (if Pr 12.49 = 1).
1 = rel
The brake controller is enabled with I/O set up to control the brake via the relay output T51/T52. Drive OK is re-routed to digital I/O 2 (T25).
2 = d IO
The brake controller is enabled with I/O set up to control the brake via digital I/O 2 (T25).
3 = User
The brake controller is enabled, but no parameters are set to select the brake output.
The following tables show the automatic parameter changes that occur to set up digital I/O2 (T25) and the relay output (T41/42) after drive reset when
Pr 12.41 has been changed. The changes are done in two stages: the first stage restores the I/O used as defined by the initial setting of Pr 12.41 and
the second stage sets up the I/O as defined by the new setting of Pr 12.41.
Old value of New value of
Pr 12.41 Pr 12.41
Any 1
Not 1 2
1 2
1 0 or 3
2 0 or 3
The control terminal relay can be selected as an output to release a brake. If a drive is set up in this manner and a drive replacement takes
place, prior to programming the drive on initial power up, the brake may be released.When drive terminals are programmed to non default
settings the result of incorrect or delayed programming must be considered. The use of a Smartcard in boot mode or an SM-Applications
module can ensure drive parameters are immediately programmed to avoid this situation.
WARNING
152
Keypad and
Parameter x.00
display
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
1
Pr 8.12 Pr 8.22
Drive OK output
0 Pr 10.01
Brake release output
0 Pr 12.40
Brake release output
0 Pr 12.40
Not stop
0 Pr 6.39
Reset
0 Pr 10.33
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Parameter description Advanced parameter
format
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
Pr 8.32 Pr 8.17
Brake release output
1 0
1 No change
Drive OK output
1 0
Drive OK output
0 0
0 No change
Serial comms
descriptions protocol
PS
PS
1
Pr 8.27
Pr 12.40
No change
Pr 10.01
Pr 10.01
No change
Mentor MP Advanced User Guide
Performance
Issue Number: 1