TrilliumSeries™ Adiabatic
Cooler - TRF Operation & Maintenance Manual
–
Component Information & Maintenance
Page | 34
11.
Wire terminal blocks shown in
following the wire labels created in
Step 4
information on connection designations. Ensure wires are properly stripped according to
Figure 20. Wire Insulation Stripping Diagram
Conn.
Designation
Function/assignment
CONN1
L1, L2, L3
Power supply, phase, see nameplate for voltage range
PE
PE
Protective earth
CON2
RSA
RS485 interface for MODBUS, RSA; SELV
CON2
RSB
RS485 interface for MODBUS, RSB; SELV
CON2
GND
Reference ground for control interface, SELV
CON2
IO1
Function parameterizable
Factory setting:
Digital input - high active, function: Disable input, SELV
- inactive: Pin open or applied voltage < 1.5 VDC
- active: applied voltage 3.5-50 VDC
Reset function: Triggering of error reset on change of state
from "enabled" to "disabled"
CON2
IO2
Function parameterizable Factory setting: Analog input 0-10 V /
PWM, Ri=100 kΩ, function: Set value Characteristic curve
parameterizable (see input characteristic curve P1-IN), SELV
CON2
IO3
Function parameterizable Factory setting: Analog output 0-10
V, max. 5 mA, function: Fan modulation level Characteristic
curve parameterizable (see output characteristic curve P3-
OUT), SELV
CON2
Vout
Voltage output 3.3-24 VDC ±5%, Pmax=800 mW, voltage
parameterizable Factory setting: 10 VDC short-circuit-proof,
supply for external devices, SELV alternatively: 15-50 VDC
input for parameterization via MODBUS without line voltage
CON2
COM
Status relay, floating status contact, common connection,
contact rating 250 VAC / 2 A (AC1) / min. 10 mA, reinforced
insulation on supply side and on control interface side
CON2
NC
Status relay, floating status contact, break for failure
LED
green: status = good, ready for operation
orange: status = warning
red: status = failure
P1-IN
Input characteristic curve
P3-OUT
Output characteristic curve
Table 5. Legend for Internal Motor Terminal Strip
