PY Manual
Copyright © 2006 SANYO DENKI
AMERICA
, Inc.
59
Servo “OFF” Sequence
During normal operation, the Servo “ON” (SON) input may be used to enable and disable
the amplifier. The timing diagram below defines the sequence of operation. In this
configuration there is a 300mS delay from the time the brake is released and the motor
excitation begins. This delay is present to allow mechanical delays in the actual release
of the brake. During this time, the command is internally clamped to zero. If the
amplifier is in position mode, the command pulses are counted during this 300mS delay
and will be present as a position error when the motor is enabled. This 300mS delay may
be eliminated by setting the “Holding Brake Excitation Timing” (Mode 1, Page 13) to
“0”. Refer to the next section for more details.
Notes:
1.
The current is limited by the sequence current limit value for 300mS. The default
value for the sequence current limit (SILM) is 120%. It may be changed in Mode 1,
Page 12.
With 300mS
Brake Delay
Holding Brake Excitation
Timing Output (HBON)
Start Ready Complete
Output (SRDY)
Motor Excitation
On
Off
Servo ON (SON)
Command
On
300 msec
300 msec
Off (Brake Engaged)
On
12 msec
12 msec
On (Release)
Command is Ineffective (Forced to Zero)
¦
§
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
