Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 - Manual (Page 28)

4-8 FlexPak 3000 DC Drive Software Reference
4.1.4 Configuring the Serial Speed Reference
CONTROL SOURCE SELECT must be set to SERIAL (in the FlexPak 3000 drive or through
the CS3000 software) and AUTO / MANUAL must be set to MANUAL to use the serial
speed reference.
If you are using the serial reference from a source such as the CS3000 software, the
reference is input directly from the serial source to the speed reference ramp. The only
parameter related to the serial speed reference is
SPD SOURCE SELECT OUT (P.193).
You can use this parameter to check the reference value.
4.1.5 Configuring the Network Speed Reference
CONTROL SOURCE SELECT must be set to NETWORK to use the network speed reference.
When the control source is NETWORK , the drive is forced into automatic mode.
The only parameter related to the network speed reference is SPD SOURCE SELECT OUT
(P.193). You can use this parameter to check the reference value.
4.1.6 Configuring the Motor-Operated Potentiometer (MOP) Reference
The MOP function can be used as a manual reference for the speed loop. To use the
MOP function:
• The I/O Expansion kit must be installed.
•
CONTROL SOURCE SELECT must be set to TERMBLK .
•
MANUAL REF SELECT (P.106) must be set to MOP .
• Switches must be attached to digital inputs 3 and 4 (terminals 63 and 64) of the I/O
Expansion kit. These inputs decrement and increment, respectively, the MOP OUTPUT
(P.191) value.
• The MOP block is shown in figure 4.3.
The MOP output is incremented when digital input 4 (terminal 63) is ON and
decremented when digital input 3 (terminal 62) is ON . MOP OUTPUT is limited between
MAXIMUM SPEED (P.004) and MINIMUM SPEED (P.003). If both digital inputs are ON at the
same time, the MOP output remains at its present value.
MOP ACCEL TIME (P.115) and MOP DECEL TIME (P.120) set the time in which the MOP
OUTPUT can change from zero to TOP SPEED and vice versa. To prevent the S-curve
block from limiting the rate of change from the MOP OUTPUT , MOP ACCEL TIME has a low
limit equal to ACCELERATION TIME . MOP DECEL TIME has a low limit equal to
DECELERATION TIME .
To obtain a negative MOP reference, the reverse direction must be selected.
When MOP RESET ENABLE is ON , the MOP output goes to MINIMUM SPEED at the moment
when the drive is stopped following a run or jog. If it is OFF , the MOP OUTPUT remains at
its present level when the drive is stopped. MOP RESET ENABLE also affects the
operation of the keypad reference, even if the I/O Expansion kit is not installed.