Alarm Contact (M5.1 - M5.2) - Carel humiSteam Basic Serie Manual Del Usuario

HUMIDISTAT and REMOTE CONTACT (ON/OFF action)
•
connect inputs M2.2 and M2.3 (production request) to a humidistat;
•
connect inputs M2.4 and M2.5 (enable) to a remote contact (e.g.:
switch, timer,...)
•
set parameter A0=0 to enable the ON/OFF action.
M.2.1 M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
Fig. 4.e
2. Enable and control steam production using:
PROPORTIONAL EXTERNAL CONTROLLER (modulating action)
•
jumper inputs M2.4 and M2.5 (enable)
•
connect outputs M2.2 and M2.3 (production request) to an external
controller
•
iset parameter A0=1 to enable the modulating action (see chap. 7) and
parameter A2 depending on the signal chosen (0 to 10 V, 2 to 10V,
0..20mA, 4 to 20 mA) (see chap. 7).
M.2.1 M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
PROPORTIONAL EXTERNAL CONTROLLER and REMOTE CONTACT
(modulating action)
•
connect inputs M2.4 and M2.5 to a remote contact (enable)
•
connect outputs M2.2 and M2.3 (request) to an external controller
•
set parameter A0=1 to enable the modulating action (see chap. 7) and
parameter A2 depending on the signal chosen (0 to 10 V, 2 to 10V,
0...20V, 4 to 20 mA) (see chap. 7).
Fig. 4.f
M.2.1 M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
Note: in industrial environments (IEC EN61000-6-2) the signal
cables running from the unit must not exceed 30 m in length:
steam production signal cable (terminals M2.1...M2.3), remote on/off
input (terminals M2.4...M2.5)
communication.

4.4 Alarm contact (M5.1 - M5.2)

Contact available for the remote signalling of one or more alarms.
Electrical specifi cations: 250 Vac; Imax: 2 A resistive 2 A inductive.
Note: use clamps on the relay terminal blocks (alarm, utilities) to
prevent the cables from being detached.
Final checks
The following conditions represent correct electrical connection:
□
the rated voltage of the appliance corresponds to the rated supply
voltage;
□
the fuses installed are suitable for the line and the power supply
voltage;
□
a mains disconnect switch has been installed to disconnect power to
the humidifi er when required;
□
the humidifi er has been correctly earthed;
□
the power cable is fastened using the tear-proof cable gland;
□
terminals M2.4 and M2.5 are jumpered or connected to an enable-
operation contact;
□
if the humidifi er is controlled by an external control device, the earth
of the signal is electrically connected to the controller earth.
15
Fig. 4.g
and cable shields for
M.5.1 M.5.2
Fig. 4.h
"UE BASIC" +030220632 - rel. 2.3 - 20.01.2009
ENG
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