Siemens SIMATIC FM 353 - Page 41

Wiring
4-9
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Input signal
READY1_N
This input is non-isolated and works with a 5V level. A floating output (switching
contact or optical coupler) may be connected. The FM 353 interprets this input as
a Ready message from the power section.
An alternative connection option is available by way of peripherals connector X1
(see Section 4.4).
Its use is defined in machine data (seeMD37, Section 5.3.1, 9.7.2).
Signal parameters of the input
Table 4-4 presents a summary of the electrical parameters of the input signal.
Table 4-4 Electrical parameters of the “READY1_N” signal input
Parameters
Value Unit Comment
1 Signal, voltage range V
H
3.5...5.5 V or input open
0 signal, voltage range V
L
−1.5...2 V
0 signal, input current I
L
−1.5...−3 mA