91
PROFIBUS-DP external communication cards
POWERXL DG1 SERIES VFD
MN040010EN—September 2016 www.eaton.com
Bit
Value
Significance
Comments
4
1
Enable Ramp Generator
0
Reset Ramp Generator
Output of the RFG is set to 0. The main contact remains closed, the converter is not isolated from the
line, the drive decelerates along the current limit or along the voltage limit of the d.c. link.
5
1
Unfreeze Ramp Generator
0
Freeze Ramp Generator
Freeze the actual set point entered by the ramp-function generator. If Application Class 4 is used Bit
5 is not relevant.
6
1
Enable Set point
The value selected at the input of the RFG is switched-in.
0
Disable Set point
The value selected at the input of the RFG is set to 0.
7
1
Fault Acknowledge (0
→
1)
The group signal is acknowledged with a positive edge; the drive reaction to a fault depends on the
type of fault. If the fault reaction has isolated the voltage, the drive then goes into the “Switching On
Inhibited” condition.
0
No significance
8
1
Jog 1 Ona
Prerequisite. Operation is enabled, drive is in standstill and STW1 bit 4, 5, 6 = 0. The drive runs up
along the ramp of RFG to jogging set point 1.
0
Jog 1 OFFa
Drive brakes along the ramp of RFG, if “Jog 1" was previously ON, and goes into “Operation Enabled”
when drive comes to a standstill.
9
1
Jog 2 Ona
N/A
0
Jog 2 OFFa
N/A
10
1
Control By PLC
Control via interface, DO I/O Data valid (refer to 6.3.11).
0
No Control By PLC
DO I/O Data not valid; expect Sign-Of-Life. If loosing the control priority bit the reaction is device-
specific. Possible reactions.
1) speed control. “old” process data is kept,
2) positioning. DO I/O Data are set to 0.
11
1
Device Specific
N/A
0
Device Specific
N/A
12
1
Device Specific
N/A
0
Device Specific
N/A
13
1
Device Specific
N/A
0
Device Specific
N/A
14
1
Device Specific
N/A
0
Device Specific
N/A
15
1
Device Specific
N/A
0
Device Specific
N/A
Table 117. PROFIdrive control word 1—STW1 message examples, continued
