Indicators; Alarm Output - Siemens Pointek CLS200 Operating Instructions Manual

7.2.1.1

Indicators

Three LEDs (L1, L2, and L3) indicate power status, sensor status, and alarm output status:
LED status
Lit
Unlit
7.2.1.2

Alarm output

The relay and solid-state switch are connected, and provide the alarm output:
Alarm OFF
Alarm ON
Alarm Output Status
There are two alarm options:
Low Alarm
High Alarm covered (level too high)
The manual assumes that the pump should be turned off in the event of a failure. If this is
a)
not the case in your process, please see the relay schematic below, and make the appropriate
connections to suit your application.
Failsafe
The Failsafe function controls the response of Pointek CLS300 to a fault so that the process
will be put into a safe mode of operation. (See Fault signaling (Page 107) for further details).
Failsafe and Alarm mode are interconnected:
• High Alarm/Failsafe High
• Low Alarm/Failsafe Low
Relay and solid-state switch functionality
Alarm Mode
Failsafe High
Failsafe Low
Pointek CLS200/CLS300 standard
Operating Instructions, 05/2021, A5E47827796-AA
Sensor status: L1 (yellow)
sensor contacting, or very close to,
process material (material capaci-
tance greater than setpoint for P2)
sensor not contacting process mate-
rial (material capacitance less than
setpoint for P2)
Relay
energized
de-energized
Probe
uncovered (level too low)
Dip Switch
Output status: L2
(red)
alarm OFF (relay ener-
gized/ switch closed)
alarm ON (relay de-
energized/ switch
open)
Solid-state switch
closed
open
Relay Solid-state
switch
de-energized open
a)
de-energized open
a)
Covered Probe
Operation
7.2 Pointek CLS300
Power status: L3
(green)
power ON
no power
Output status/Red LED
lit
unlit
Output status/ Red LED
unlit
unlit
Uncovered Probe
43