Chapter 12
106
Technical data
Test outputs (X1 … X8)
Number of outputs
8 (with 2 test pulse generators)
Output type
PNP semiconductor, short-circuit protected, cross-
circuit monitoring
Output voltage
15 … 30 V DC (max. 1.8 V drop to terminal A1 of
CPU module)
Output resistance Low
≤
33
Ω
± 10 %, current limited at approx. 10 mA
Output current
Max. 120 mA at each of the two test signal
generators (X1/X3/X5/X7 or X2/X4/X6/X8)
This means that a maximum of 8 testable sensor
cascades per module with max. 30 mA each are
possible.
The total current for the MELSEC-WS safety
controller for all outputs (X1…X8 and XY1…XY2) is
limited to a maximum of 1.28 A. This corresponds to
e.g. a maximum of 32 testable sensor cascades with
30 mA each plus 64 tactile sensors on inputs on
safety I/O modules with 5 mA each.
Test pulse rate (test period)
1 … 25 Hz, configurable
Test pulse duration (test gap)
1 … 100 ms, configurable
Load capacity
1
μ
F for test gap
≥
4 ms
0.5
μ
F for test gap 1 ms
Cable resistance
< 100
Ω
*1 Do not switch other safety inputs in parallel, if the reverse current could lead to a High state at the
other input.
Содержание MELSEC-WS series
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