Technical documentation
Rev. 02
Reactive Factor Controller CX plus
7
4 Connection data
Measuring and supply voltage
Combined voltage measurement and supply
Range: 90
– 550 V AC, 45 – 65 Hz
Terminals: U1 / U2
A transformer factor can be set when using voltage transformers.
Range 1.0
– 350.0
Current measurement
Current measurement
Range: 5 mA
– 6 A AC, 45 – 65 Hz.
The use of x/1 and x/5 transformers is possible.
Terminals: S1 (K) / S2 (L)
Transformer factor adjustable from 1
– 9600
Switching outputs relay
only option -xxR
Equipment with 6 (
option: -06R
) or 12 switching outputs (
option: -
12R
)
Switching outputs potential-free with common root
Terminals: C / 1
– 12
Switching capacity 5 A / 250 V AC
Fan relay
Closes the contact when exceeding the pre-set temperature limit 1.
Terminals: F1 / F2
Switching capacity 5 A/ 250 V AC
The fan relay may be used alternatively as 7
th
or 13
th
switching
output for a step.
This function is described in more detail in the chapter
“APPLICATIONS”, paragraph “Additional switching output for
a
step”.
Alarm relay
Normally open contact, closed in normal operating condition.
Opens in case of alarm and in case of a failure of the supply
voltage (life contact).
Terminals: AL1 / AL2
Switching capacity 5 A / 250 V AC
Digital input
Digital input either for switching to the second target cos
or for
supressing the I-LOW alarm.
Adjustable logic: HIGH or LOW active
Terminals: I1 / I2
Input signal: 90
– 250 V AC
Temperature measurement
internal NTC (under the housing cover)
MODBUS interface
only option: -MB
Protocol: MODBUS-RTU
Interface: RS485
Terminals: + / GND / -
TTL interface
