Stulz Ultra Series User Manual

STULZ Ultra-Series Humidifier Controller
(Augu
st, 2013) 31
Change Modbus addr
Caution: Read Manual!
Current Humidifier 1
Change to Hum 2
New Hum available
Current hum ready
Change Address? No
(←) to the Humidifier number in the first field to select
which Humidifier to view. Use the up (↑) and down (↓) keys
to change the humidifier number. Its current group
placement is displayed. It may be assigned to a different
group by advancing to the "Place in Group" field. If the unit
is assigned to a new group, it must be confirmed in the
"Store value?" field. Valid entries for groups are X (not
active), A, or B.
The duty assignment for group B can be changed to
"Capacity Assist", Unison or "Rotate" in the lowermost field
(reference Section 2.6.8.1 & 2.6.8.2).
5.5.1.4 Change Humidifier Modbus Address
If a new Humidifier is added to an existing group of
multiple ultrasonic Humidifiers, it must be configured with a
new unique address for Modbus communication. From this
screen a Humidifier may be selected and its assigned
Modbus address number may be changed. A new
Humidifier is typically shipped from the factory with its
Modbus address set to one. In this case it will need to be
assigned a new address to differentiate it from the current
Humidifier in the group that is already addressed as
number one.
 Current Humidifier: The Humidifier that
will have
its address chang
ed.
 Change to Hum: The address the curren
t
Humidifie
r will be change
d to.
 Ne
w Hum available/New Hum in use/Wait is
an
indication of the ne
w humidifier num
ber
availability. “Ne
w Hum available” mean
s no
humidifie
r is respondi
ng to the address shown as
the Cha
nge to Hum number. New Hum
in use
indicates that
a humidifier is responding
to the
Cha
nge to Hum number already. Wait
is displayed
durin
g changing of the display numbe
r, waiting for
the assignm
ent change to be comp
lete. This
sho
uld last typically 30 seconds.
5.5.1.4.1 Procedure to Change Humidifier
Assignment:
With power turned off at the control box, complete the
Modbus and power wiring connections to the Humidifier to
be added.
Turn Off all the Humidifier circuit breakers inside the
control box and any in auxiliary boxes (see Figure 3 -
Control Box Internal Layout; item 17), except the one
power supply for the Humidifier to be addressed. This
isolates the existing Humidifiers from the Modbus allowing
only the address of the new humidifier to be changed.
When power is re-applied to the control box (and with the
circuit breaker turned on only for the new Humidifier to be
addressed in the appropriate control or auxiliary box),
bring up this screen. Go to the last line and change the
“NO” to “Yes” indicating the desire to change the address
of the humidifier. The third line in the screen displays
"Wait” while the E-Ultra sends out the change command
and waits for a response at the new address. The third line
will change to New Hum in Use” and the fourth line will
change to “Current hum not ready” indicating it is
communicating using the "Chan
ge to Hum" address and
not the original address. If the third line displays "New Hum
Available", it indicates the Humidifier did not accept the
change.

Stulz Ultra Series Specifications

General

Brand	Stulz
Model	Ultra Series
Category	Controller
Language	English