DESCRIPTION OF PRODUCT
Series 642
6/113
Edition 2017-11-24
605593EC
1.6
Technical data
1.6.1
Control and actuating unit
Description
Power input
1)
(
α
)
+24 VDC (±10%) @ 0.5 V pk-
pk max.
[connector: POWER]
[642 . . - . . A . - . . . . / 642 . . - . . G . - . . . . ]
[642 . . - . . C . - . . . . / 642 . . - . . H . - . . . . ]
50 W max. (operation of valve with max. load) without PFO
4)
50 W plus 10 W for PFO
4)
Power input (DeviceNet
®
) (
β
)
3 W max. (from DeviceNet
®
)
[connector: DeviceNet
®
]
Sensor power supply
2)
(
β
)
[642 . . - . . A . - . . . . / 642 . . - . . C . - . . . . ]
Input
Output
+24 VDC / 1500 mA max.
±15 VDC (±5%) / 1000 mA
max.
[connector: POWER]
[connector: SENSOR]
Sensor power supply
2)
(
β
)
[642 . . - . . G . - . . . . / 642 . . - . . H . - . . . . ]
Input
Output
+ 24 VDC resp. ± 15 VDC
same as input but:
2.0 A max. at ± 15 VDC
1.5 A max. at + 24 VDC
[connector: POWER]
[connector: SENSOR]
Sensor input
Signal input voltage
ADC resolution
Sampling time
0-10 VDC / Ri>100 k
Ω
0.23 mV
10 ms
[connector: SENSOR]
LOGIC I/O
3)
(configurable)
1 digital input
1 digital output
[connector: LOGIC I/O]
PFO
4)
battery pack
[642 . . - . . C . - . . . . / 642 . . - . . H . - . . . . ]
Charging time
Durability
2 minutes max.
up to 10 years @ 25°C ambient;
refer to «Durability of power fail battery» for details
Ambient temperature
0 °C to +50 °C max. (<35 °C recommended)
Pressure control accuracy
5 mV or 0.1% of setpoint, whichever is greater
1)
Internal overcurrent protection by a PTC device.
2)
Refer to chapter: «Sensor supply concepts» for details.
3)
Refer to chapter: «LOGIC I/O» for details.
4)
PFO = Power Failure Option. Refer to «Behavior in case of power failure» for details.
Calculation of complete power consumption:
P
tot
=
α
+
β
whereas
β
depends on sensor supply concept and sensor power consumption.
