10
Important:
for RS485 connections in household (IEC EN 55014-
1) and residential (IEC EN 61000-6-3) environments, use
shielded cable (with shield connected to PE both on the terminal and
controller ends), maximum length specified by the EIA RS485 protocol,,
using AWG26 twisted pair cable;
the input impedance of the 485 stage is 1/8 unit-load (96 kOhm). This
configuration allows a maximum of 256 devices to be connected, with
cables in separate conduits from the power cable.
ALARM RELAY
This is used to signal one or more alarms via a remote connection.
Alarm relay
NO
COMMON
M 15
Fig. 4.e
ALARM RELAY POWER SUPPLY
The connections shown in Fig.4.g can be used to directly control a
auxiliary relay coil
30 Vdc (24 Vac rectified), 3 W max.
+24 V
GND
Alarm signal
(max 3W)
M 15
Fig. 4.f
Note:
in industrial environments (IEC EN61000-6-2) the signal
cables leaving the unit
must not exceed (33 ft)
(1)
in length: remote on/
off digital input (terminals M14.1...M14.2) and shielded cable for RS485
communication
4.4 Auxiliary card connections (optional)
J17
J8
1 2 1 2 3 4 5
M9
M10
+ GND 21Vdc
The auxiliary card features the following connections
ON/OFF CONTROLLER (humidistat or remote switch)
•
jumper inputs M14.1 and M14.2 (enable) on the main board;
•
connect terminals M10.1 and M10.2 to a humidistat or a remote switch
(voltage-free contact)
•
set parameter A0=0 to enable On/Off operation (see Chap. 7)
EXTERNAL PROPORTIONAL CONTROLLER (modulating)
•
jumper inputs M14.1 and M14.2 (enable) on the main board;
•
connect terminals M10.1 and M10.2 (production request) to an external
controller;
•
set parameter A0=1 to enable modulating control (see Chap. 7) and
parameter A2 depending on the chosen signal (0 to 10 V, 2 to 10V, 0 to
20, 4 to 20 mA) (see Chap. 7).
CONTROL WITH CAREL HUMIDITY PROBE
(Optional) identified with remote sensor included with cabinet, terminate 3
conductor wire to terminal strip. Terminations have been completed inside
by Ultra Pure. Simply terminate 3 wires (white,black and red) color for
color to terminal strip and mount T&H in desired location using 5' included
wire.
Final checks
The following conditions represent correct electrical connection:
□
main power to the humidifier corresponds to the voltage shown on the
rating plate.
□
Recepticle has been verified to be 115v, correct polarity and grounded
J8
tLAN terminal connection (optional) with 30 Vdc power supply
(24 Vac rectified)
M9
tLAN AUX serial connector
M10
M10.1 - + Analog proportional controller/probe/humid.
M10.2 - + GND signal reference
M10.3 - +21Vdc for active probe supply
M10.4 - N.U.
M10.5 - N.U.
J17
AUX input
