Solutions – Safety

System Q Safety Relay

The QS90SR2SP safety relay module allows safety I/O to be included in a conventional System Q controller, for when it is not cost effective to specify a dedicated safety controller. The module can be mounted in a conventional System Q rack, or alternatively can be used with a decentralised connection, or on a conventional CC-Link open network. Hence it provides a high degree of flexibility for system design. The QS90 meets all relevant safety certifications such as EN 954 Category 4 and ISO 13849-1/2006 PL e.

System configurations

Specifications

System Q Safety Relay Extension Module
CC-Link Type
QS90SR2SP-CC
(215801, P Type)
QS90SR2SN-CC
(215803, N type)
Q-Bus Type
QS90SR2SP-Q
(215799, P Type)
QS90SR2SN-Q
(215800, N Type)
QS90SR2SP-EX
(215804, P Type)
QSSR2SN-EX
(215805, N Type)
Safety Standard EN 954-1 Category 4
Safety Input 1 pt (dual wiring)
Startup Input 1 point
Safety Output 1 point (dual/triple wiring)
Rated load current Category 4 3.6A/point
Up to Category 3
5.0A/point
AC250V/DC30V
Response time Shutoff output <20ms
Startup output <50ms
Module power supply DC24V Supplied from a safety relay module
Output power supply DC24V Supplied from a safety relay module
Extended modules Up to 3 extended modules
Terminal type Spring clamp
Lifetime (Relay) Mechanical >5,000,000 times
Electrical >100,000 times
Dimensions (WxHxD) [mm] 45 x 111 x 111 55.2 x 98 x 112 45 x 111 x 111