Figure 6-9
D4x5‑2 system cycle clocks (one servo activated)
6.5.2.3
Setting of the cycle clocks (two servos activated)
Requirement
Supported control units: SIMOTION D435-2 DP/PN, D445-2 DP/PN and D455-2 DP/PN
If Servo_fast and IPO_fast are used, the PROFINET must be operated isochronously.
A reduction ratio for the PROFINET cycle clock to the Servo_fast-cycle and the PROFIBUS
cycle clock to Servo cycle clock is not possible.
Cycle clock ratios and conditions
The table below shows the possible ratio settings for the SIMOTION D4x5‑2 system cycle
clocks based on the DP cycle of the SINAMICS Integrated or PROFINET send cycle clock.
Table 6-7
Ratios of system cycle clocks (two servos)
Cycle clock name
Settable factors
Reference cycle clock
Servo_fast
1
Send cycle clock of the onboard PROFINET IO in‐
terface (X150)
IPO_fast
1, 2, 4
Servo_fast
Servo
1
PROFIBUS DP bus cycle clock and send cycle
clock of the optional second PROFINET IO inter‐
face (CBE30‑2)
IPO
1, 2, 4
Servo
IPO_2
2, 3, 4, 5, ... 64
IPO
Parameter assignment / addressing
6.5 Configuring PROFINET IO
SIMOTION D4x5-2
154
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
