Instruction manual

12
closure that puts the 115 VAC of the press control into
the I/O board.
REVERSE:
The reverse command is sent to the press control to
indicate that the press is to operate in the inch or micro
inch mode in the reverse direction. The CES controller
uses this information with other signals to establish
either the inch-reverse or micro inch-reverse mode. If
the reverse command is issued with any command other
than the inch or micro inch, a fault will be generated.
The reverse command cannot be changed when enable
is present; otherwise, a fault will be generated.
The reverse signal consists of a press control contact
closure that puts the 115 VAC of the press control into
the I/O board.
CONTROL POWER ON:
The control power on signal is provided by the press
control to activate the 115 VAC control power to the CES
controller. This will close a contact in the secondary of
the CES controller transformer.
STOP-ON-TOP:
The stop-on-top signal is issued by the press control to
indicate that the CES controller should execute a normal
stop-on-top, as described in detail in the section on
"Press Operating Modes." If the stop-on-top command is
present when the enable is received by the CES
controller, a single stroke of the press will take place.
The stop-on-top signal consists of a press control
contact opening that removes the 115 VAC of the press
control to the I/O board.
FAULT RESET:
The fault reset command is a signal from the press
control to reset any fault condition in the CES controller,
allowing for continuation of operation. If the condition is
a result of a clutch current fault or a brake current fault, it
will be necessary to wait five to ten minutes (depending
on the setting of parameters No. 64 for the clutch and
No. 65 for the brake) before resetting; otherwise another
fault will be generated. This delay is necessary to allow
time for the coil to cool down. The time left to wait
before restarting can be displayed in parameter No. 18.
This time is in seconds.
The fault reset signal consists of a press control contact
closure that puts the 115 VAC of the CES controller into
the 1/0 board.
PRESS CONTROL INTERFACE - OUTPUT SIGNALS
The CES controller provides seven different solid state
output signals that function as contact closures and
contact openings, according to the conditions called for.
The output signals that occur during different phases of
operation are as follows: Normal Stop, Stop Main Motor
Fault, Stop Now Fault, Stop-on-Top Fault, Control
Failure Fault, Clutch ON and TD Relay
NORMAL STOP (OUTPUT):
The normal stop signal from, the CES controller
indicates that the press control is to execute a normal
stop. Receipt of this signal from the CES controller
indicates that the CES controller has commanded the
press drive to be at zero speed. Upon receipt of this
normal stop signal, the press control is directed to
remove the enable signal and set the friction brake. The
normal stop output will be cleared by the press control
giving the enable signal the next time it is desired to run.
The I/O board of the CES controller opens a solid state
relay contact for the normal stop signal to the press
control.
STOP MAIN MOTOR FAULT (OUTPUT):
The stop main motor fault signal from the CES controller
to the press control requests an emergency stop
condition. The press control then stops the main motor,
sets the flywheel brake, sets the friction brake and
removes the enable signal. The CES controller is placed
in the fault mode.
The 1/0 board of the CES controller opens a solid state
relay contact for the stop motor fault signal to the press
control.
STOP NOW FAULT (OUTPUT):
The stop now fault signal is an output from the CES
controller. It indicates a second level of emergency stop
in which the press control is to immediately remove the
enable and set the friction brake The software programs
the reference to zero which applies the Eddy Current
Brake to help stop the press.
The I/O board of the CES controller opens a solid state
relay contact for the stop now fault signal to the press
control.
STOP-ON-TOP FAULT:
The stop-on-top fault signal directs the press control to
complete the present cycle, and then execute a normal
stop-on-top, after which the CES controller is in the fault
mode.
The I/O board of the CES controller opens a solid state
relay contact for the stop-on-top fault signal to the press
control.
CONTROL FAILURE FAULT (OUTPUT):
The control failure fault is generated by either of two
conditions. One is when the microprocessor watchdog
timer senses a microprocessor failure. The other is
when the power supply monitors sense a failure.