REXROTH Fv Series - Page 246

PZD1 PZD2
PPO request message
CW REF
0x0001 0x1388
PPO response message
SW ACT
0x0080 0x1388
Tab. 12-41: Example 2_PPO request and response messages
In this example, the feedback status word is 0x0080, bit7...bit9 of
status word is 001 (Communication hardware circuit fault).
● Process data PZD3...PZD10
One of parameters H0.04...H0.07 can set 2 PZDs. For example, H0.04 sets
PZD3 and PZD4, with bit0...bit3 setting of PZD3, bit4...bit7 setting of PZD4,
then the maximum range of the function code is 00...FFH (hex) or 0...255
(decimal). The corresponding relationship between the set value (4 bits) and
monitored value is shown in table below.
00 Output current
01 Reference frequency
02 Output current
03 DC bus voltage
04 Heat sink temperature
05 Output voltage
06 Output power
07 Torque current
08 Exciting current
09 Output speed
0A Reference speed
0B User-defined reference value
0C User-defined output value
0D Reference torque
0E Digital inputs status
0F Encoder speed feedback
Tab. 12-42: Process data PZD3...PZD 10 values and function code settings
● Examples for operation of PZD process data area
Example 1
The master communicates with the slave via PPO4. From fig. 12-6 "PPO
type" on page 236 and tab. 12-42 "Process data PZD3...PZD 10 values and
function code settings" on page 244, we need to set status monitoring value
corresponding to PZD3...PZD6 in parameters of Fv.
If we need to start frequency converter for forward rotation at 50.00 Hz
(0×1388), and request PZD3 to reflect output current, PZD4 to reflect output
voltage, PZD5 to reflect DC bus voltage, PZD6 to reflect radiator tempera‐
ture, respective function codes are set as: [H0.04] = 82; [H0.05] = 67. Com‐
plete PPO request and response messages are shown in table below.
Bosch Rexroth AG DOK-RCON02-FV*********-IB08-EN-P244/259
Rexroth Frequency Converter Fv
Communication Protocols