Functions; Function Overview; Power Supply; Relay Outputs - ABB Sentry USR22 Product Manual

5

Functions

5.1

Function overview

Power supply, 24 VDC
Relay output
• 2 NO + 2 NO
Safety device interface
• One channel connection
• Two channels with equivalent contacts
• Two channels with antivalent contacts
• Two channels OSSD
• Pressure sensitive device
• Two-hand device
Test, start and reset interface
• Automatic reset
• Manual reset
• Multi reset
Timer function
• Off-delay 0.5 s
• Off-delay 1.5 s
• Off-delay 0 – 999 s
• On-delay 0 – 999 s
• Time bypass 0 – 999 s
• Time reset 0 – 999 s
Features
• Display
• Error status code
• Password
5.2

Power supply

24 VDC
The safety relay and the safety devices are supplied with 24 VDC and common shared ground.
5.3

Relay outputs

The safety relay output contacts are opened or closed based on the signals from the safety
device. Each safety relay output has two contacts in series, one contact for each internal
output relay.
14
The power supply must be of type PELV/SELV
Warning!
2TLC010073M0201 Rev.G