KROHNE OPTISYS SLM 2100 EN - Manual (Page 70)

7
TECHNICAL DATA
70
OPTISYS SLM 2100
www.krohne.com 03/2014 - 4002737302 - MA OPTISYS SLM 2100 R02 en
Inputs and outputs
General All in and outputs are electrically isolated from the power supply.
Inputs Control inputs: Three active
control inputs, not polarity
sensitive
U
out
= 8 VDC
I
out
= -10 mA
U
low
= <2 V
min I
typical
at 2 V = -8.7 mA
U
high
= >4 V
max I
typical
at 4 V = -6.8 mA
Operating modes Control input 1: Rake guard
switch or external trigger
(switchable via Software)
Control input 2: Rake guard
switch or external trigger
(switchable via Software)
Control input 3: Maintenance
mode
Outputs Current outputs Two outputs (4...20mA), galvanic
isolated from power supply,
active mode
Output data Current output A: level of fluff
Current output B: level of sludge
blanket or concentration (profile)
Operating data U
max
= 18 VDC
I = 4...20 mA
I
max
≤ 22 mA
R
L
≤ 550 Ω
Relays Operating modes Relay 1 and 2: limit switch or
status output
Relay 3: pump protection
Operating data for all relays U
ext
≤ 24 VDC/250VAC
I ≤0.3 A
.book Page 70 Wednesday, April 30, 2014 1:39 PM