Xylem IM255 AQUAVAR Intelligent Pump Controller - Manual (Page 36)

Relay 02 Terminal number 4–6 (break), 4–5 (make)
Maximum terminal load (AC-2) 1 on 4–5 (NO) (resistive load) 2,3 400 V AC, 2A
Maximum terminal load (AC-15) 1 (Inductive load @ cosφ 0.4) 240 V AC, 0.2A
Maximum terminal load (DC-1) 1 on 4–5 (NO) (Resistive load) 80 V DC, 2A
Maximum terminal load (DC-13) 1 on 4–5 (NO) (Inductive load) 24 V DC, 0.1A
Maximum terminal load (AC-1) 1 on 4–6 (NC) (Resistive load) 240 V AC, 2A
Maximum terminal load (AC-15) 1 on 4–6 (NC) (Inductive load @ cosφ
0.4)
240 V AC, 0.2A
Maximum terminal load (DC-1) 1 on 4–6 (NC) (Resistive load) 50 V DC, 2A
Maximum terminal load (DC-13) 1 on 4–6 (NC) (Inductive load) 24 V DC, 0.1A
Minimum terminal load on 1–3 (NC), 1–2 (NO), 4–6 (NC), 4–5 (NO) 24 V DC 10mA, 24 V AC 20mA
Environment according to EN 60664–1 overvoltage category III/pollution degree 2
Wiring for factory default setup
This configuration utilizes the controller factory default settings for I/O. The factory default
settings are configured for a single pump, constant pressure application with a 300 psi,
4-20mA pressure transducer wired to AI 53. A jumper wire is needed between terminals
29 and 32 to enable the No Water/Loss of Prime Restart function. A Start signal is applied
on Digital Input 18. The controller will receive a Start command when DI 18 is connected
to 24V. There are no parameters that need to be adjusted for this configuration. Refer to
Commissioning section for details on configuring the controller and changing application
settings.
CAUTION:
When a Start (Closed) signal is present on DI18, the controller can start the pump/motor
at any time without warning. Set DI18 to Stop (Open) or press the [Off] operation key
before using the Genie. Apply the Start signal to the controller only when pump/motor
operation is desired.
NOTICE:
The factory default settings are configured to require a start signal wired to DI18 as shown
below.
Figure 19: Required terminal connections for use with factory default settings
Pump protect
A Pump Protect function can be used to turn off the controller and issue an alarm (Pump
Protect Alarm 60) when system pressures, temperatures, levels, etc. are outside of the
normal operating range for the system. The Pump Protect function can be configured on
digital input 19 and digital input 27. These inputs can be controlled by an external device
such as a suction pressure switch, an over pressure switch, a temperature switch, a
differential pressure switch, etc. The device chosen should be normally closed. The
[22-00] Pump Protect Delay parameter can be configured to delay the onset of the Pump
Electrical Installation
34 Aquavar ® Intelligent Pump Controller INSTRUCTION MANUAL