GE Ecomagination AF-600 FP Programming Manual page 175

Parameter Description
3.24.1 PC-0# System Settings
Parameters related to control principles and configuration
of the system.
PC-00 Pump Controller
3 3
Option:
[0] Disabled The Pump Controller is not active. All built-in
*
[1] Enabled The Pump Controller is active and stages/
PC-02 Motor Start
Option:
[0] Direct
on Line
*
[1] Soft
Starter
[2] Star-
Delta
PC-04 Pump Cycling
Option:
[0] Disabled The fixed speed pumps are connected in the
*
[1] Enabled The fixed speed pumps are connected/discon-
174
Function:
For operation of multiple devices (pump/fan)
systems where capacity is adapted to actual load
with speed control combined with on/off control
of the devices. For simplicity, only pump systems
are described.
relays assigned to pump motors in the cascade
function are de-energised. If a variable speed
pump is connected to the frequency converter
directly (not controlled by a built-in relay), this
pump/fan is controlled as a single-pump system.
destages pump according to load on the system.
Function:
Motors are connected to the mains directly with a
contactor or with a soft starter. When the value of
parameter PC-02 Motor Start is set to an option
other than [0] Direct on Line, then
parameter PC-50 Lead Pump Alternation is automat-
ically set to the default of [0] Direct on Line.
Each fixed speed pump is connected to mains
directly via a contactor.
Each fixed speed pump is connected to mains via
a soft starter.
Fixed pumps connected with star-delta starters
are staged in the same way as pumps connected
with soft starters. They are destaged in the same
way as pumps connected directly to mains.
Function:
To provide equal hours of operation with fixed
speed pumps, the pump used can be cycled. The
selection of pump cycling is either first in – last
out or equal running hours for each pump.
order 1–2 and disconnected in the order 2–1 (first
in–last out).
nected to have equal running hours for each
pump.
PC-05 Fixed Lead Pump
Option: Function:
Fixed lead pump is a configuration when the variable
speed pump is connected directly to the frequency
converter, and if a contactor is applied between
frequency converter and pump, this contactor is not
controlled by the frequency converter.
If operating with parameter PC-50 Lead Pump
Alternation set to other than [0] Off, set this parameter
to [0] No.
[0] No The lead pump function can alternate between the
pumps controlled by the 2 built-in relays. Connect 1
pump to the built-in RELAY 1, and the other pump to
RELAY 2. The pump function (cascade pump1 and
cascade pump2) is automatically assigned to the relays
(maximum 2 pumps can in this case be controlled by
the frequency converter).
[1] Yes The lead pump is fixed (no alternation) and connected
directly to the frequency converter. The
*
parameter PC-50 Lead Pump Alternation is automatically
set to [0] Off. Built-in relays RELAY 1 and RELAY 2 can
be assigned to separate fixed speed pumps. In total, 3
pumps can be controlled by the frequency converter.
PC-06 Number of Pumps
Range:
2 [2 -
*
3]
3.24.2 PC-1#
PC-10 Minimum Run Time Override
Option:
[0]
*
[1]
PC-11 Minimum Run Time Override Value
Range:
0 ProcessCtrlUnit
03/2016 All rights reserved.
Function:
The number of pumps connected to the Pump
Controller including the variable speed pump. If the
variable speed pump is connected directly to the
frequency converter, and the other fixed speed
pumps (lag pumps) are controlled by the 2 built-in
relays, 3 pumps can be controlled. If both the
variable speed and fixed speed pumps are to be
controlled by built-in relays, only 2 pumps can be
connected.
If parameter PC-05 Fixed Lead Pump is set to [0] No: 1
variable speed pump and 1 fixed speed pump; both
controlled by built-in relay. If parameter PC-05 Fixed
Lead Pump is set to [1] Yes: 1 variable speed pump
and 1 fixed speed pump controlled by built-in relays.
1 lead pump, see parameter PC-05 Fixed Lead Pump.
2 fixed speed pumps controlled by built-in relays.
Function:
Disabled
Enabled
[-999999.999 - 999999.999
*
ProcessCtrlUnit]
Function:
DET-620D