Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 - Manual (Page 204)

Chapter 7
Programming Parameters
7-38
Parameter 624 – Maintained Start [Maintain Start]
Internal units : None
Programming Terminal units: 0/1 selection
Minimum Value: 0
Maximum Value: 3
Default Value: 2
Description: Parameter 624 selects the type of Start signal required
in the logic command word. Choices are:
0 = Start signal treated as a momentary input. The drive will latch the
start input. A Stop bit will be required to unlatch the start function
and regen to a stop.
1 = Start signal treated as a maintained input. The motor will regen to
a stop should the Start bit become 0, or the Stop bit become 1.
2 = Software Coast / Regen Stop option. The start signal will be
treated as a maintained input. The Drive will Regen Stop when the
start bit is removed. The Drive will Coast Stop when the Stop bit is
set.
3= All Coast Stop option. The start signal will be treated as a
maintained input. The Drive will Coast Stop (phase back SCR firing
and open Main Contactor) under all Stop conditions:
•
Remove Start bit
•
Set Stop bit
•
Remove Jog bit
ATTENTION: Refer to Ch 6 – Installation, for important information
and warnings regarding stop mode interfaces with the 1395.
Parameter 625 – Torque Mode [Torque Mode]
Internal units : None
Programming Terminal units: 0/1 selection
Minimum Value: 0
Maximum Value: 5
Default Value: 1
Description: Parameter 625 selects the torque command source
within the Drive. Choices are:
0 = Zero torque command under all conditions.
1 = Velocity regulator output
2 = External torque reference comes from Parameters 157 (Torque
Reference). A stop condition will initiate a coast stop.
3 = Minimum select of 1 and 2. Selecting this function will
automatically connect this algebraic minimum of either the velocity
regulator output or the external torque reference to the torque mode.
A stop condition will initiate a coast stop.
4 = Maximum select of 1 and 2. Selecting this function will
automatically connect the algebraic maximum of either the velocity
regulator output or the external torque reference to the torque mode.
A stop condition will initiate a coast stop.
5 = Load Response (sum of 1 and 2). Selecting this function will
automatically take the algebraic sum of the velocity regulator output
and the external torque reference to the torque mode. A stop
condition will initiate a coast stop.