DCS800 Firmware manual supplement for North America (rev. 2.60, 2.70) Rev. b 5/30/2008
12
Field heat On
When parameter FldHeatSel (21.18) = On, the feature works as follows:
Condition OnOff Input (DI-7) Off2 Input* Result
Power Up: Off On Field On - reduced**
Start drive: On On Field On
Normal stop: On Æ Off On Field On, then
reduced** after stop
Off2 while running: On On Æ Off Field turns off safely
as motor coasts to
stop.
* Parameter Off2 Emergency Off / Coast Stop (10.08) must be set to a valid input bit number for
this to be valid. Default value is DI-4.
** If parameter 44.04 is set below 100%, field will be at this reduced level while motor is stopped.
Field heat OnRun
When FldHeatSel (21.18) = OnRun, the feature works as follows:
Run (StartStop,
Jog1, Jog2, etc.) OnOff Input (DI-7) Off2 Input* Result
Off On On Field On - reduced**
On On On Field On
On or Off On On Æ Off Field will turn off safely
as motor coasts to stop
and cannot turn back on
again until Off2 is
switched on while
OnOff and Run are off.
All other conditions Field Off
* Parameter Off2 Emergency Off / Coast Stop (10.08) must be set to a valid input bit number for
this to be valid. Default value is DI-4.
** If parameter 44.04 is set below 100%, field will be at this reduced level while motor is stopped.
The Estop Input
In both modes of operation, the estop input (configured with parameter 10.09) is cleared
while the drive is off, the field will turn off. It will not turn back on again until the estop input
is again set. If estop is cleared while in motion, the motor will decelerate to a stop, the
drive will turn off, and then the field will shut off.
For additional information
See the DCS800 firmware manual:
• Page 148 - 152 group 10 parameters Start / Stop Select
• Pages 180 – 181 group 21 parameters Start / Stop
• Page 222 group 44 parameters Field Excitation
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