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5
SETTINGS AND PROCEDURES BEFORE
OPERATION
5.4 Wiring
5.4.1 Precautions for safety devices and wiring
5 - 24
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTINGS AND
PROCEDURES BEFORE
OPERATION
6
TROUBLESHOOTINGAPPENDIX
(b) When a light curtain is connected to the extension module (QS90SR2SP-EX),
safety shutdown from the main module may be disabled depending on the wiring
configuration.
Wire the cables referring to the connection diagram shown in Figure 5.15 and
according to the precautions below.
Figure 5.15 Connecting a light curtain to the extension module
Safety shutdown from the main module turns off inputs by cutting off input power
supplied to the COM terminal of the extension module.
That is, if the wiring is configured so that power of the light curtain is supplied from
the COM terminal of the extension module, power supply of the light curtain turns
off and outputs of the extension module stops consequently in the event of the
safety shutdown.
1) Precautions for selecting power supply
Power supply input of a light curtain will be connected to the COM terminal of
the extension module. Select a light curtain compatible with the specifications
for the COM terminal and X0/X1 terminals of the extension module.
*
* 1: Current consumption = COM terminal output current (500[mA]) - ((X0 terminal input current
(40[mA]) + X1 terminal input current (40[mA]))
Number of light curtains
The number of light curtains means the number of light curtains connected in one system.
One system means the system configured with one main module and one or more extension
module(s).
Specifications for the COM terminal of the extension module
Rated voltage: 23
10% [V]
Output current: Maximum 500[mA]
Specifications for the X0 and X1 terminals of the extension module
ON voltage: 20.0[V] or more
OFF voltage/current : 2.4[V] or less/2.0[mA] or less
Input current: Maximum 40[mA]
Input voltage: Maximum 26.4[V]
Table 5.9 Specifications for selectable light curtains
Rated voltage
23 10 [V]
Total amount of current consumption of light
curtain (receiver)
*1
One light curtain is connected: 420[mA] or less
Two light curtains are connected: 340[mA] or less
ON voltage 20.0[V] or more
OFF voltage/current 2.4[V] or less/2.0[mA] or less
Control
output 1
Control
output 2
Safety light curtain
To the main module
24G terminal
0V IN
24V IN
COM0
X0
X1
COM1
Extension module