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DESCRIPTION OF PRODUCT
Series 655
8/112
Edition 23.09.2019
979645EA
PFO
4)
battery pack
[655 . . - . . C . - . . . . / 655 . . - . . H . - . . . . ]
charging time
durability
2 minutes max.
up to 10 years @ 25°C ambient;
refer to «Durability of power fail battery» for details
Compressed air supply
4 - 7 bar / 55 - 100 psi (above ATM)
Ambient temperature
0 °C to +50 °C max. (<35 °C recommended)
Pressure control accuracy
5 mV or 0.1% of setpoint, whichever is greater
Position resolution / position control capability
58000 steps
(full stroke)
Closing time throttling only (full stroke)
0.9 s typ.
0.5 s typ.
Opening time throttling only (full stroke)
0.9 s typ.
0.5 s typ.
Closing time throttling & isolation (full stroke)
3 s typ.
Opening time throttling & isolation (full stroke)
4 s typ.
1)
Internal overcurrent protection by a PTC device.
2)
Refer to chapter «Sensor supply concepts» for details. Complete power consumption of the valve depends on
sensor supply concept and sensor power consumption
3)
Refer to chapter «Schematics» for details.
4)
PFO = Power Failure Option. Refer to chapter «Behavior in case of power failure» for details