Carel gaSteam-UG, User Manual, Page: 48 / 128

48
ENG
Electrical connections
g0300122EN rel. 1.0 - 01.12.2021
9.2 S team production control signals
Depending on the type of signal used, steam production can be enabled and/or managed in diff erent ways (ON/OFF or mod-
ulating).
IMPORTANT the probe inputs are protected against short-circuits, and the maximum current delivered (3U) is 50 mA.
Despite this, it is recommended to confi gure the “Control type” before connecting the probes to the terminals.
To help users confi gure the humidifi er, a screen index is shown at the top right of the display. The screen index corresponds to
the sequence in each menu in order to reach the specifi c page.
Regulation Ea01
Regulation type:
Mod. Hum. with limit
Fig. 9.f
Steam production can be started by:
HUMIDISTAT (ON/OFF operation):
• connect terminals 1U and 2U (production request) to a humidistat;
• short-circuit terminals 7U and 8U (jumper) to enable production;
• to enable ON/OFF operation, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.g
Index Parameter Description
Ea01 Control type External ON/OFF signal
Ea04 Maximum produc-
tion 25-100% of rated production
Tab. 9.d
HUMIDISTAT and REMOTE CONTACT (ON/OFF operation)
• connect terminals 1U and 2U (production request) to a humidistat;
• connect inputs 7U and 8U (enable) to a remote contact (e.g.: switch, timer,...);
• to enable ON/OFF operation, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.h
Index Parameter Description
Ea01 Control type External ON/OFF signal
Ea04 Maximum produc-
tion 25-100% of rated production
Tab. 9.e
Steam production can be enabled and controlled by:
EXTERNAL PROPORTIONAL CONTROLLER (modulating operation)
• short-circuit terminals 7U and 8U (jumper) to enable production;
• connect terminals 1U and 2U (production request) to an external controller;
• to enable control, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
OU
T
REF
Fig. 9.i
Index Parameter Description
Ea01 Control type proportional to external signal
Ea03 Proportional band Set: Hysteresis (0-100%) -
Minimum production (25%-
00%) - Maximum production
(25%-100%)
Ec01 Type of main
probe Select from: 0 - 1V, 0 - 10V, 2 - 10V,
0 - 20mA, 4 - 20mA
Tab. 9.f