Siemens Pointek CLS500 Operating Instructions Manual page 84

1. Set the rotary switch to 7.
2. Press and hold the RED (+) or BLUE (–) button to select contact open or contact
closed,
3. If required, adjust menu selections 13, 14, 15 and 16 which set the criteria and
threshold that have to be met for a change in output signal.
(In Free Programming Mode only, press and hold both buttons to disable Digital
Signalling Mode.)
Digital Fault Signalling
Notes:
• Factory setting FSH links menus 17 and 18, and sets them to enable digital fault
signalling. (In Free Programming Mode, available at menu 1E, all menu items are
independent.)
• Menu 18 has precedence over the settings on Menu 17, but if no fault exists, the
switch will respond to the setting in menu 17.
Controls the solid-state switch response to a fault/failure and allows you to select either
FailSafe High (FSH), or FailSafe Low (FSL).
FailSafe HIgh
no fault
uncovered covered
20 mA 4 mA
closed open
In FailSafe High mode in normal conditions, the switch is on and contact closed, as long
as the conditions do not cause the switch to close in response to settings at menu 17. If a
fault is detected the switch will be off and contact open. This setting provides no current
in a fault situation, and high current (20 mA) in normal conditions
In FailSafe Low mode in normal conditions, the switch is off and contact open, as long as
the conditions do not cause the switch to close in response to settings at menu 17. If a
fault is detected the switch will be on and contact closed. This setting provides high
current (20 mA) in a fault situation, and no current in normal conditions.
Page 78
fault
uncovered covered
3.6 mA
open
Pointek CLS500 – INSTRUCTION MANUA
FailSafe Low
no fault
uncovered covered
4 mA 20 mA
open closed
fault
uncovered covered
22 mA
closed
7ML19985GG03