Parameter and variable descriptions 6-3 – Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE User Manual
Page 59
PARAMETER AND VARIABLE DESCRIPTIONS
6-3
1557-UM050F-EN-P – June 2013
Speed Command Select [Speed cmd select
]
Linear number
7
Minimum value:
0
Maximum value:
15
Default value:
N/A
This parameter specifies the source of the drive speed command. It is not saved and is set to either 1 (Local)
or 9 (Remote) at power up depending on the state of the Local/Remote digital input. The 11 possible sources
of speed command that can be selected by this parameter are:
0
none
1
Speed Command Select 0 (Local)
2
Preset Speed Command 1
3
Preset Speed Command 2
4-8
Preset Speed Command 3
9
Speed Command Select 8 (Remote)
10
SCANport adapter 1 (Communications Processor board Port 1)
11
SCANport adapter 2 (Communications Processor board Port 2)
12
SCANport adapter 3 (not used)
13
SCANport adapter 4 (not used)
14
SCANport adapter 5 (not used)
15
SCANport adapter 6 (1336-GM1 RI/O adapter)
Reverse Enable [Reverse enable]
Linear number:
8
Minimum value:
0
Maximum value:
1
Default value:
0 (Off)
This parameter is used to prevent the drive from running in the reverse direction. When this parameter is set to
zero, the commanded direction of rotation is always forward.
Note that this does not prevent reverse rotation if the load overpowers the drive.
Input Contactor Opening Delay [Input open delay]
Linear number:
10
Minimum value:
0.0 min.
Maximum value:
57.0 min.
Default value:
0.0 min.
This parameter specifies the time delay between the drive shutting off, and the input contactor opening, if the
contactor is configured to open when the drive is not running. The purpose of this delay is to keep a harmonic
filter energized if the drive is stopped for a short time, and not have to wait for the filter capacitors to discharge
before restarting.
Parameter Level [Parameter level]
Linear number:
13
Minimum value:
0
Maximum value:
3
Default value:
2
This parameter specifies which of the parameters and variables are visible:
0
Minimum
1
Standard
2
Full
3
Development
Parameters that are not visible are set to their default value. If this parameter is changed, the new value will
not take effect until the control power is turned off and on.
This parameter was added in Rev 5.00 and is not present in 4.xx.