26
Note that bit #15 is normally “reserved” by the drive manufacturer. The PBDP-
110 uses this bit, however, to indicate whether it has established an open line
of communications with the drive connected to that channel. Once a
connection has been established with the drive, this bit will normally indicate
“Online”. While searching for a drive (such as during initialization) and when
no drive is connected, this bit will indicate “Offline”, and all other input data will
be “0”. If this status bit indicates “Offline”, but there is a drive connected to the
channel in question, check the cable connections and verify that the drive is
powered. If an “Offline” indication appears intermittently during operation,
check the quality of the drive communication cable connections, and verify that
the drive communication cable is not routed near other electrical noise-
producing cables or equipment.
Table 6: Example Status Word Format (S9 Drive)
Bit Function 0 1
15 Drive online / offline status Offline Online
14 Reserved Always “0”
13 Reserved Always “0”
12 Reserved Always “0”
11 Reserved Always “0”
10 Run / stop status Stopped Running
9 Forward / reverse status Forward Reverse
High Byte
8 Jog status Not jogging Jogging
7 DC injection braking status Not DC inj. braking DC inj. braking
6 Accel / decel #1/#2 status #1 #2
5 Reserved Always “0”
4 Reserved Always “0”
3 Reserved Always “0”
2 Reserved Always “0”
1 Reserved Always “0”
Low Byte
0 Reserved Always “0”
Output Frequency
Drive parameter number FD00. Continuously reports the drive’s operating
frequency. In order to determine the drive’s actual output frequency, the data
contained in the output frequency word offsets must first be converted from
hexadecimal to decimal, and then divided by 100. For example, if the output
frequency high byte is 0x12 and the output frequency low byte is 0x34, then
0x1234 converted to decimal is 4660. Dividing this number by 100, the actual
operating frequency of 46.60Hz is obtained.
Output Current
Drive parameter number FE03. Continuously reports the drive’s output current
in %. In order to determine the drive’s actual output current, the data
