West Control Solutions N8840 - Manual (Page 81)

POWER SUPPLY
Dependent of order:
AC SUPPLY
Voltage: 90...260 V AC
Frequency: 48...62 Hz
Power consumption approx. 7,0 VA
UNIVERSAL SUPPLY 24 V UC
AC voltage: 20,4...26,4 V AC
Frequency: 48...62 Hz
DC voltage: 18...31 V DC
Power consumption: approx.. 7,0 VA
BEHAVIOUR WITH POWER FAILURE
Configuration, parameters and adjusted
set-points, control mode:
Non-volatile storage in EEPROM
FRONT INTERFACE
Connection of PC via PC adapter (see
"Accessory equipment"). The 8800/8840
Configurator software is used to configure, set
parameters and operate the 8840 profiler.
BUS INTERFACE (OPTION)
Galvanically isolated
Physical: RS 422/485
Protocol: Modbus RTU
Transmission speed: 2400, 4800, 9600, 19.200
bits/sec
Address range: 1...247
Number of controllers per bus: 32
Repeaters must be used to connect a higher number
of controllers.
ENVIRONMENTAL CONDITIONS
Protection modes
Front panel: IP 65 (NEMA 4X)
Housing: IP 20
Terminals: IP 00
Permissible temperatures
For specified
accuracy:
0...60°C
Warm-up time: ≥ 15 minutes
For operation: -20...65°C
For storage: -40...70°C
Humidity
75% yearly average, no condensation
Shock and vibration
Vibration test Fc (DIN 68-2-6)
Frequency: 10...150 Hz
Unit in operation: 1g or 0,075 mm
Unit not in operation: 2g or 0,15 mm
Shock test Ea (DIN IEC 68-2-27)
Shock: 15g
Duration: 11ms
Electromagnetic compatibility
Complies with EN 61 326-1
(for continuous, non-attended operation)
GENERAL
Housing
Material: Makrolon 9415
flame-retardant
Flammability class: UL 94 VO, self-extinguishing
Plug-in module, inserted from the front
Safety test
Complies with EN 61010-1 (VDE 0411-1):
Overvoltage category II
Contamination class 2
Working voltage range 300 V
Protection class II
Technical data
8840 profiler 81