ABB CL Series User Manual

Function blocks
155
1SVC 440 795 M1100
• Range A: Compare
>I1 > >I2
– The actual value >I1 increases.
– The contact switches when the actual reaches the setpoint
value.
– The actual value changes and falls below the setpoint value
minus the hysteresis.
– The contact goes to the normal position.
• Range B: Compare
>I1 < >I2
– The actual value drops.
– The contact switches if the actual value reaches the setpoint
value.
– The actual value changes and rises above the value of the
setpoint value plus hysteresis.
– The contact goes to the normal position.
• Range C: Compare
>I1 > >I2 with offset
– This example behaves as described in Range A. The offset
value is added to the actual value.
•Comparison
>I1 = >I2 The contact switches on:
– If the setpoint is exceeded with the actual value rising.
– If the setpoint is undershot with the actual value decreasing.
The contact switches off:
– If the hysteresis limit is exceeded with the actual value rising.
– If the hysteresis limit is undershot with the actual value
decreasing.
Arithmetic function block
The display system provides 32 arithmetic function blocks
AR01 to AR32.
The arithmetic function block is used for arithmetic
operations. All four basic arithmetic operations are
supported:
•add,
• subtract,
•multiply,
•divide.

ABB CL Series Specifications

General

Manufacturer	ABB
Rated Control Supply Voltage (Us)	24 V DC
Mounting	DIN Rail
Category	Relays
Contact Configuration	SPDT
Coil Voltage	24 V DC
Operating Temperature	-40°C to +70°C
Electrical Life	100 Thousand Cycles
Output	Relay