
11
CONTENTS
13 PARAMETER TABLES CONTINUED
“ADV” advanced menu CONTINUED
Code Description ACC UoM DEF Range
P.50 Transmission speed Usr bps 9.6 k 1.2 k
2.4 k
4.8 k
9.6 k
19.2 k
38.4 k
P.51 Data format Usr 8-bit – n 8-bit, no parity
8-bit, odd
8-bit, even
7-bit, odd
7-bit, even
P.52 Stop bit Usr 1 1-2
P.53 Protocol Usr Modbus
RTU
Modbus RTU
Modbus RTU
P.54 Number of activations for maintenance Adm Kcnt 50 OFF/1-60
P.55 (1) Step 9 function Adm OFF OFF/1...32/ON/NOA/NCA/FAN/MAN/AUT/
A01...A13
P.56 (1) Step 10 function Adm OFF =
P.57 (1) Step 11 function Adm OFF =
P.58 (1) Step 12 function Adm OFF =
P.59 (1) Step 13 function Adm OFF =
P.60 (1) Step 14 function Adm OFF =
P.21 – If set to OFF, password management is disabled and anyone can access the parameters and menu commands.
P.22 – With P.21 set to ON, value to be entered to enable access at user level (see password access in section 10).
P.23 – For more informations, please contact your Legrand group representative.
P.24 – Number of phases in the capacitor bank enclosure.
P.25 – Allows the actual power of the step executed on each connection to be measured. The measured power of the steps is adjusted after each switching
operation and displayed on the step life statistics page.
P.26 - P.27 – Tolerance around the setpoint. When the cos phi is within the range bounded by these parameters, in AUT mode the device neither connects nor
disconnects any steps even if the kVAr delta is higher than the smallest step.
P.28 – Selection of step insertion mode.
Standard mode – Normal step operation
Linear mode – The steps are connected according to their number and the LIFO (Last In First Out) method. The controller will not connect a step when
these have dierent power ratings and if on connecting the next one, the setpoint value is exceeded.
Disconnection mode - If a step with a lower power rating needs to be connected and the activated one needs to be disconnected, the sequence will be:
- disconnection of the currently activated step
- connection of the new step
P.29 – Setpoint used when the system is generating active power (with negative power/power factor).
P.30 – Sensitivity on disconnection. Similar to parameter P.10, but concerning disconnection. If set to OFF, disconnection has the same reaction time as
parameter P.10.
P.31 – If enabled, during switching from AUT mode to MAN mode, the steps are disconnected in sequence.
P.32 – Capacitor overload protection trip threshold (alarm A07), which will appear after a time delay inversely proportional to the overload value.
P.33 – Threshold beyond which the overload alarm tripping delay is reset to zero, causing immediate intervention of alarm A08.
P.34 – P.35 – Data relating to VTs which may be used to measure the voltage.
P.37 – P.38 – Cabinet cooling fan tripping and switch-o temperature, expressed by the unit stated in P.36.
P.39 – Threshold for generating alarm A08“temperature too high”.
P.40 – Threshold as a percentage of the step residual power, compared to the original power programmed in the general menu.
Below this threshold, alarm A13“step fault” is generated.
P.41 – Maximum voltage alarm threshold, referring to the nominal voltage set with P.07, above which alarm A06“voltage too high”is generated.
P.42 – Undervoltage alarm threshold, referring to the nominal voltage set with P.07, below which alarm A05“voltage too low” is generated.
P.43 – Installation maximum voltage THD alarm threshold above which alarm A10“Voltage THD too high”is generated.
P.44 – Installation maximum current THD alarm threshold above which alarm A11“Current THD too high”is generated.
P.45 – Maintenance interval in hours. When it has elapsed, alarm A12“maintenance required”is generated. The hour counter is incremented as long as the
device is switched on.
P.46 – Function of the semi-circular bar graph.
Inst/tot kVAr: The graph represents the total connected kVAr compared to the total installed reactive power in the enclosure.
Act/nom curr: Percentage of the installation actual current compared to the CT maximum current.
kVAr delta: bar graph with zero in the middle. Indicates the negative/positive kVAr delta needed to reach the setpoint, compared to the total installed
kVAr.
P.47 – Default measurement displayed on the secondary screen. Setting the parameter to ROT allows measurements to be displayed with sequential rotation.
P.48 – If it is enabled, backlighting ashes when one or more alarms is active.
P.49 – Serial address (node) of the communication protocol.
P.50 – Port communication speed.
P.51 – Data format. 7-bit settings are only possible for ASCII protocol.
P.52 – Number of stop bits.
P.53 – Selects the communication protocol.
P.54 – Denes the number of step activations (with reference to the step which has the most) above which maintenance alarm A12 will be generated.
Thisparameter is used as an alternative to P.45. If P.45 and P.54 are both used, P.45 has priority.
P.54...P.60 – Function of output relays 9 to 14. See description of parameter P.11
(1) Only for ALPTEC 8.2