Wilo Stratos Notice De Montage Et De Mise En Service page 17

English
Symbol Definition
Differential pressure set value set to H = 18.0 ft. (example)
Control mode Δp-v, regulated to variable differential pressure set value
(fig. 7) (default).
Control mode Δp-c, regulated to constant differential pressure set value
(fig. 8).
Manual control mode deactivates the module pressure variations. The
speed of the pump is kept at a constant level. The speed is set internally
using the contol button (fig. 10).
Pump set to a constant speed (2.600 rpm example shown) - manual
control mode.
In the manual control mode, the speed or differential head of operating
mode Δp-c or Δp-v of the pump is set via input 0...10 V of the Stratos IF
module Ext.Min. The button then has no set value input function
(fig. 11).
Control mode Δp-T, regulated to temperature dependent differential
pressure set value (fig. 9). The maximum set value Hs is displayed.
max
This control mode can only be activated via an IR operating and service
unit (accessory) or via the serial digital interface.
All settings on module except "acknowledge error" locked out. Settings
locked out by the IR operating and service unit (accessory). Settings can
only be altered using IR .
The pump is operated via a serial data interface. The "On/Off" function
is not activated at the module. Only , , the display
position and fault acknowledgement still have to be set on the module.
Operation at the interface can be interrupted temporarily with the
IR-module/IR-stick (for inspection or for reading out data).
Pump runs as slave pump. No changes can be made to the position
setting of the display.
Two single pumps as double pump running in peak load mode
(master + slave)
Two single pumps as double pump running in duty / standby mode
(master or slave)
Appears on pumps with certain IF Modules (see documentation of IF
Modules) if a signal (sign) is sent from the building control centre to the
pump.
The pump is set in the "SI units" mode.
Fault-tolerant error matrix activated.
Heating operating mode (in case of malfunction, see Chap. 10)
Fault-tolerant error matrix deactivated.
Air-conditioning operating mode (in case of malfunction, see Chap. 10)
Installation and operating instructions Wilo-Stratos/-D/-Z 13