MITOS VT6 HVAC User Manual

CONTROL MODES
MITOS VT6 HVAC terminal can be used to set the SET
POINT of inverter PID block and to control motor RUN and STOP, else it can be
used as simple display only. By using cmod and fmod parameters it is
possible to establish the level of control as following:
Model
VF‐Nc3 VF‐S15 VF‐Mb1 VF‐FS1
Control start/stop by Cmod=2 Cmod=2 Cmod=2
MITOS VT6 HVAC Fmod≠3 Fmod≠4 Fmod≠4
Set the PID Setpoint Cmod≠2 Cmod≠2 Cmod≠2
by VT6 HVAC Fmod=3 Fmod=4 Fmod=4
Total control by VT6 Cmod=2 Cmod=2 Cmod=2
HVAC Fmod=3 Fmod=4 Fmod=4
CONFIGURATION MENU
Access to setting menu is done by
contemporary pressing of these keys at
switching on.
CONFIGURATION MENU OPTIONS
Rotatiopn sense Forward RUN Select the motor rotation direction
Reverse RUN when START key is pressed
Release Display the firmware release
2
Set K parameter 0 ‐ 5000 It select a converting factor between
Pressure (various units) and FLOW
(m
Set C parameter 0‐5000 It set the pressure/temperature
transducer max value
4
Speed unit Hz, RPM, m/min, Selects the speed unit to be displayed
‐‐‐ in mode MAN (use F702 for scaling)
3
Manual variable Real, h, Ampere In MAN mode selects the second
variable to be displayed
1
Unit selection BAR, mBAR, PA, kPA, Select the main UNIT in AUTO mode
mmH2O, m3/h, m3/min,
l/h, l/min, °C, °F, ‐‐‐
Select Language ITALIAN, ENGLISH,
SPANISH, GERMAN
Storage Set ON/OFF If ON, after switching off the last Set‐
point value is stored. If OFF, the value is
always resetted. In MAN mode this
parameter concerns the speed set.
Transparent ON If ON, MITOS VT6 is used as a simple
mode OFF display only with no possibility to
control the inverter
SETTING OF CONFIGURATION
selected through arrow keys. Values can be changed by using START and
MAN/AUTO keys. To exit configuration MENU use STOP/RESET key.
AUTO MODE
In Auto Mode the first line of display always show the PID Set point in the unit that
VF‐AS1 VF‐PS1
has been selected (1) . Second line shows the feedback variable. If the setpoint is
Cmod=2 Cmod=2 Cmod=2
expressed as pressure variable, the feedback can be either pressure or flow and
Fmod≠4 Fmod≠5 Fmod≠5
calculated by multiplying the square root of pressure for the parameter K (2). If K
Cmod≠2 Cmod≠2 Cmod≠2
is different from zero, the feedback (REAL) will be displayed as FLOW.
Fmod=4 Fmod=5 Fmod=5
CHANGING THE PID SETPOINT If MITOS VT6 HVAC is used for changing the setpoint
Cmod=2 Cmod=2 Cmod=2
of PID, by using arrows key sit will be possible to modify the setpoint. If another
Fmod=4 Fmod=5 Fmod=5
method (selected by Fmod) is used for changing the setpoint, the displayed value
will be only read one.
MONITOR MODE Pressing the MON key it could be shown alternatively to
SETPOINT a different variable choosing from Power (power requested from line),
Freq. (actual frequency), Iout (output current), Vin (input voltage), Vout (output
voltage), Et1‐4 (last alarms), Cnt (total working hours)
EMERGENCY MANUAL MODE
When motor is not running it is possible to switch from AUTO to
MANUAL mode by pressing the MAN/AUTO key and keep it hold for 3
sec.. In this mode, independently from cmod and fmod setting,
VT6 HVAC completely controls the motor; start and stop is managed
through START and STOP/RESET keys and motor speed is changed by
arrow keys. The variable to be shown in second line of display can be
3
/h ) to be displayed in AUTO mode
selected by the "manual variable" (3) from configuration menu. The
measure unit for speed can be selected through the "Speed unit" (4)
variable in configuration mode. The displayed value of speed can be
converted by a multiplying factor using f702
MENU Values on configuration menu can be
inverter parameter.
Advanced control terminal
for TOSHIBA inverters in HVAC
applications
MITOS VT6 HVAC

Multilanguage

RS485 or TTL interface selectable

Customizable front layout

Pressures and temperatures selectable units

Emergency manual mode