Emotron VFX 2.0 Instruction Manual page 2

Addendum
Addendum valid for
Emotron VFX 2.0 and FDU 2.0 Variable Speed Drive
New Software version 4.21
This addendum belongs to the instruction manuals with document number:
01-4428-01r2 for Emotron FDU 2.0 software version 4.2X and
01-4429-01r2 for Emotron VFX 2.0 software version 4.2X
All Chapter and Menu numbers in this addendum refers to
the Chapter and Menu numbers in the above listed Instruction manuals.
1. Brake acknowledge functionality
Support is added for a Brake Acknowledge signal via a
digital input. It is monitored using a brake fault time param-
eter. Additional output and trip/warning signals are also
included. The acknowledge signal is either connected from
the brake contactor or from a proximity switch on the brake.
The brake acknowledge signal can also be used to improve
safety by preventing hoist falling load in case the brake is not
engaged when stopping.
Brake not released - Brake Fault trip
During start and running the brake acknowledge signal is
compared to the actual brake output signal and if no
acknowledge, i.e. brake not released, while brake output is
high for the Brake Fault time [33H], then a Brake trip is
generated.
Brake not engaged - Brake Warning
and continued operation
(keep torque)
The brake acknowledge signal is compared to the actual
brake output signal at stop. If acknowledge is still active, i.e.
brake not engaged, while brake output is low for the Brake
Engage time [33E] then a Brake warning is generated and
the torque is kept, i.e. prolonging normal brake engage
mode, until brake closes or an emergency action is needed
by the operator, such as setting down the load.
Emotron AB 01-4934-01r1
Following chapters have added
parameters or selections
11.5.2 Digital inputs
The Brake acknowledge function is activated by using the
new digital input selection- Brk Ackn in Menu [521]
Digital Input 1 [521]
521 DigIn 1
A
Stp
Default: RunL
The input is not active.
Off 0
Brake acknowledge input for Brake Fault
control. Function is activated via this
Brk Ackn 31
selection
Brake acknowledge functionality
Brk Ackn
1