The
BM-1600 is a time-based brake monitor that utilizes a high resolution
encoder and controller to measure the brake stopping time in milliseconds
and also the RPM/SPM of the press. The rotary encoder is attached
to the subject machine and is driven on a 1:1 ratio by the power
press crankshaft. The brake stopping time of the machine will
be displayed on every stop and can be easily read on the bright
red light emitting diode (LED) display on the front panel of the
unit. The RPM/SPM of the machine will be displayed during the
machine cycle.
Individual LED indicators are visible
and easily define the existing status of the unit during the press
cycle (shown above). All system programming and diagnostics are
front panel mounted and controlled which will minimize downtime
while enhancing operator safety and press maintenance. All operating
mode selections are supervisory controlled by a keyed selector
switch which meets all OSHA and ANSI standards for mode selection
supervisory control.
To program the Brake Warning Time
and the Brake Limit Time set points, the user inserts the programming
key into the lock and turns to the desired position (status LED
illuminates). By depressing the +/- buttons to the desired time
setting and turning the key back to the Run position, the new
warning/failure time set points are saved. All errors and time
value set points are permanently stored in the EEPROM memory which
does not require a battery backup. The user cannot change or re-program
the Brake Warning or Brake Limit set points while the encoder
is in motion, which is an additional safety feature.
The dual force-guided captive contact
safety output relays of the BM-1600 are always de-energized when
the programming key is not in the Run position. When the key is
in the Run position, the safety output relays are always energized
as long as there are no internal or external faults detected.
When a fault is detected, it is recorded within the system in
non-volatile memory along with the last stopping time. If the
power to the Brake Monitor System is removed and re-applied, the
last error to occur will come back up and prevent any further
use until the programming key is used. Only the key turned to
the reset position can clear a fault. If no fault occurred but
the programming key is moved into the reset position, the output
relays will de-energize as a safety feature. Motion Detection
will still be monitored while in the Reset position even if the
encoder is turning.
OSHA/ANSI Compliance
The BM-1600 system complies
with OSHA code 1910.217 and ANSI Code B11.1-2000 for brake monitoring
and control reliability standards. The unit will automatically
prevent the activation of a successive stroke if the stopping
time deteriorates beyond the brake limit set point. Required on
any press that has a single stroke mode and uses either a two
hand control, light curtain or type B gate system.
Non-volatile
EEPROM Memory
All diagnostic faults
and brake set points are permanently saved in non-volatile memory
which does not require battery backup. Information is retained
indefinitely after a power loss or machine shutdown.
Advanced Design
The advanced circuitry
and user friendly design on the BM-1600 allows both programming
and status monitoring to be performed from the front of the compact
panel. There is no need to enter the control panel to adjust switches
or thumbwheels which will enhance both safety and productivity.
System Self Diagnostics
Control displays status
and system fault codes on the LED display. A detailed definition,
cause and cure listing is supplied within each installation and
operation manual.
Predictive Maintenance
Diagnostic Tool
The unique "brake
warning" feature on the BM-1600 allows for predictive maintenance
to be scheduled on the machine, which will minimize downtime.
Factors which will be monitored and affect stopping time: machine
cycle speed, counterbalance air supply, tooling weight, clutch
air supply, exhaust restrictions, brake wear adjustment and clutch
wear adjustment.
90° Stop
Built-in
The built-in 90° press
stop feature initiates a stop signal at the 90° position in
the downstroke. This is required information when calculating
the location of point of operation guarding systems or palm button
assemblies.
270° Down
from Top Stop Test
Allows the press to travel
630° which is 1-3/4 times around. The press will start to
stop at the 270º mark. This is used to check for proper counter
balance.
Complete Package
Supplied
Everything you need to
install and operate the BM-1600 is supplied.
- BM-1600 Brake Monitor Controller
- Model E-160 Encoder
- 20' of encoder cable
- Dimensional and technical data
- Installation and operation manual
