Glanded Pumps - THERMO-ECO-ENGINEERING úvod

Switching and Control Devices
Wilo-VR, CRn, and CR control devices
Performance features
Control and signalling functions
Remote speed adjustment
(control input)
Remote setpoint adjustment
–
–
0/2- 10 V
0/4- 20 mA
0/2- 10 V
0/4- 20 mA
0 / 2- 10 V
0/4- 20 mA
0/2- 10 V
0/4- 20 mA
Run and fault signal lights • • •
Control input
“Setpoint switchover”
– • •
Control input “Overriding Off” • • •
SBM • • •
SSM • • •
Fault-actuated switchover from
frequency converter to mains
operation
Fault-actuated switchover from
main to standby pump
Status display for pumps and
frequency converters
Equipment features
– – •
• • •
– • •
Motor Protection integrated in pump WSK / SSM, integrated in pump ETA / PTC / WSK
Graphics display Menu navigation / Symbol display Menu navigation / Text display Menu navigation / Text display
User-oriented menu guide with
multi-lingual text display
– • •
Manual Operation Manual / 0 / Auto Manual / 0 / Auto Manual / 0 / Auto
Fault memory 9 messages 35 messages 35 messages
Fault-actuated switchover • • •
Pump kick • • •
Run-time optimisation / Pump
alteration
only time-sensitive pump duty
cycling
• •
Proprietary BUS – – –
RS 485
prepared –
for parameterisation of the
frequency converter
Pump duty splitting up to 4 pumps up to 6 pumps up to 6 pumps
PID controller • • •
Integrated real-time clock with
summer / wintertime switchover
Integrated individual / common
operating hours counter
Run-time optimisation on multipump
systems
Conductivity tests of the actual
value control circuit
• = available, – = not available
Wilo Control Device…
VR-HVAC CRn CR
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• • •
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• • •
172 Subject to change without prior notice 09/2006 WILO AG