WEST 8800 Operating Manual page 77

CONTROL INPUTS DI2, DI3 (OPTION)
The digital input di2 located on the A-card and
di2 located on the option card are or-linked.
Configurable as switch or push-button!
Optocoupler input for active triggering.
Nominal voltage
Current sink (IEC 1131 type 1)
Logic "0"
Logic "1"
Current requirement
TRANSMITTER SUPPLY U
Power: 22 mA / ≥ 18 V
If the universal output OUT3 or OUT4 is used
there may be no external galvanic connection
between measuring and output circuits!
GALVANIC ISOLATION
Safety isolation
Function isolation
Mains supply
Relay OUT1
Relay OUT2
Relay OUT3
Relay OUT4
OUTPUTS
RELAY OUTPUTS OUT1...OUT4
Contact type: potential-free changeover
contact
Max.contact rating: 500 VA, 250 V, 2A at 48...62 Hz,
resistive load
Min. contact rating: 5V, 10 mA AC/DC
8800 process controller
24 V DC external
-3...5 V
15...30 V
approx.. 5 mA
(OPTION)
T
Process value input INP1
Supplementary input INP2
Optional input INP3
Digital input di1, di2
RS422/485 interface
Digital inputs di2, 3
Universal output OUT3
Universal output OUT4
Transmitter supply U
T
OUT5, OUT6
77
Operating life 600.000 duty cycles with max.
(electr.): contact rating
Note:
If the relays operate external contactors, these
must be fitted with RC snubber circuits to
manufacturer specifications to prevent
excessive switch-off voltage peaks.
OUT3, 4 AS UNIVERSAL OUTPUT
Galvanically isolated from the inputs.
Freely scalable resolution:
Current output
0/4...20 mA configurable.
Signal range:
Max. load:
Load effect:
Resolution:
Accuracy
Voltage output
0/2...10V configurable
Signal range:
Min. load:
Load effect:
Resolution:
Accuracy
OUT3, 4 used as transmitter supply
Output power:
OUT3, 4 used as logic output
Load ≤ 500 Ω
Load > 500 Ω
OUTPUTS OUT5/6 (OPTION)
Galvanically isolated opto-coupler outputs.
Grounded load: common positive voltage.
Output rating: 18...32 VDC; ≤ 70 mA
Internal voltage drop: ≤ 1 V with I
Protective circuit: built-in against short circuit,
overload, reversed polarity (free-wheel diode
for relay loads).
Technical data
11 bits
0...approx.22mA
≤ 500 Ω
no effect
≤ 22 µA (0,1%)
≤ 40 µA (0,2%)
0...11 V
≥ 2 kΩ
no effect
≤ 11 mV (0,1%)
≤ 20 mV (0,2%)
22 mA / ≥ 13 V
0/≤ 20 mA
0/> 13 V
max