—————— TPD32-EV ——————
272
RUN
START
Torque front monitoring time
T = 1 sec
Brake drop
out speed
detection
Induced
current
Brake
release
current
detection
Brake
switch
command
Brake
switch
feedback
Actuator delay
time
Actual
opening
of brake
pads
Ramp
validation
Speed
feedback
Brake drop out threshold
Switch
delayed
feedback
Inverter
locking
Engaging fault
Mechanical
brake
fault
Engaging fault
Figure 6.14.8.1: Diagram of control
Diagram of control
Functional diagram with minimal use of inputs and outputs. Specific assignments of this diagram:
DI1:
Fwd sign Ascending, conventionally “Forward”
DI2 :
Rev sign Descending, conventionally “Reverse”
DI3:
Brake fbk, mechanical brake feedback/relay status
Relay 2: Brake command KM10 contactor command
With reference to the previous graph, a brake alarm condition occurs if:
-
when the brake is released
, following the Enable and Start commands, the value of the current supplied by
the drive is unable to sustain the load (indicated by the Torque proving parameter and signalled by the brake
command digital output) in a time that is less than the Torque delay time; or, if the current is adequate, the
signal confirming that the brake has been released (Brake fbk) has not been received, again within the time
set in Torque delay.
-
when the brake is closed
, once the speed set in the Closing speed parameter has been reached (signalled
Summary of Contents for TPD32-EV-...-2B
Page 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Page 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
Page 373: ... Instruction manual 373 ...
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Page 501: ... Instruction manual 501 APPENDIX 3 ACCESSORIES A3 1 EAM Adapter Kit EAM1579 EAM1580 ...
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