ITT Industries PumpSmart PS200, Configuration & Operation Manual

Page: 83 / 159

PS200 Configuration & Operation Guide
OPTIONS & FEATURES
Page 80
Locking(see also PERMISSIVE)
The PS200 has two levels of keypad locking; LOCAL LOCK and PARAMETER LOCK.
1. PARAMETER LOCK - In parameter lock, parameters may be viewed, however they cannot be changed.
Starting, Stopping, setpoint changes and drive fault resets may still be performed using the keypad.
2. LOCAL LOCK - In local lock, starting and stopping are prevented. Resetting of drive faults is still possible.
To change the drive parameters, including 10.03 LOCAL LOCK, the parameter lock must be opened. To open the
parameter lock, go to parameter 10.02 PASS CODE and scroll to the number 358 and press ENTER. Parameter
10.01 PARAMETER LOCK will read OPEN.
NOTE - If power to the drive is lost [power failure, disconnect, etc…] parameter 10.01 PARAMETER LOCK will
automatically reset to LOCKED.
Parameter Name Value/Range Note(s)
10.01 PARAMETER LOCK
LOCKED
[default]
OPEN
This parameter displays the status of the
parameter lock and can be used to lock
the parameters when necessary. To
OPEN the parameter lock, use parameter
10.02.
10.02 PASS CODE -0- Using the arrow keys, scroll to the
number "358" and press enter. This will
open the parameter lock.
Note - The number entry will disappear
once ENTER has been pressed.
10.03 LOCAL LOCK
OFF
[default]
ON
This parameter disables local control of
the drive (Start/Stop).
!
It is not possible to stop the drive through the keypad with LOCAL LOCK set to ON.
x Use LOCAL LOCK only with a remote (external) stop/start method.
x Keypad must be set in REMOTE before enabling LOCAL LOCK.
Low NPSH/Cavitation protection
The PS200 can protect against cavitation and low NPSHA conditions by reducing the pump-speed as suction
pressure decreases. This requires an additional pressure or level transmitter mounted on the suction side of the
pump. See
Setpoints, Multi-Variable for details on setting up this functionality.
A second way to protect against low NPSHA is to use a pressure (or level) switch on the suction side of the pump.
The switch is then wired to a digital input on the PumpSmart drive and configured to either toggle to a lower
setpoint, or shut-off completely. See
Setpoints-Dual
or
Secondary Protection
for details on setting up this
functionality.