Cooling Tower Fan (Lg-Ni1000) + Hibernation - Siemens G120P Manual

Application examples
4

Cooling tower fan (LG-Ni1000) + hibernation

4.4
Macro 107 "Cooling tower LG-Ni1000 sensor +

hibernation"
 Control of the cooling tower fan based on the
temperature of the cooling water
 LG-Ni1000 temperature sensor on AI3
 Hibernation
Flying restart and automatic restart activated

Error message: Digital output 0

Status display: Digital output 2

When selecting this application using macro 107, the
technological unit remains unchanged at [%]. If
necessary, adapt the unit as described in the parameter
list. Select the values depending on the used sensor.
Parameter Value
p596 100
p0010 5
p595 4
p0010 0
p756[3] 6
p0840 r722.0
p1200[0] 1
p1210 26
p2200[0] 1
p2201[0] 26 °C
p2253[0] p2201
p2257 30 s
p2258 30 s
p2264[0] r755[3]
p2265 10 s
p2267 100 °C
p2268 -10 °C
p2293 30 s
p2306 1
p2390[0] 50 rpm
p2391[0] 60 s
p2392 1 °C
p2398 1
40
Siemens AG
Cooling tower fan (LG-Ni1000) + hibernation
Temparature
sensor Ni1000,
e.g. QAP22
Description
Reference variable of the technological unit
Parameter filter change, technological unit
Selection of technological unit: °C
Parameter filter ready
LG-Ni1000 temperature sensor
ON / OFF (OFF1)
Flying restart always active (start in setpoint direction)
Acknowledging all faults and restarting for an ON command
Technology controller enable
Technology controller fixed value 1
Technology controller setpoint 1
Technology controller setpoint ramp-up time
Technology controller setpoint ramp-down time
Technology controller actual value
Technology controller actual value filter time constant
Technology controller upper limit actual value
Technology controller lower limit actual value
Technology controller ramp-up/ramp-down time
Technology controller fault-signal inversion
Hibernation start speed
Hibernation delay time
Hibernation restart value with technology controller
Hibernation mode
9
P24V
ON / OFF 5
DI0
28
GND
69
DI COM
52
AI3+
53
GND
14
PTC A
15
PTC B
12
Speed
AO0+
13 (0..20mA)
AO0-
26
AO1+
Output current
27
(0..20mA)
AO1-
20
19
Fault
DO0
18
22
Alarm
DO1
21
25
24
Operation
DO2
23
Optional
CM2G5111en
2014-05-16