MYERS MP Series, Installation, Operation & Maintenance Manual

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2.3.4.4 Maintenance
Menu 3 below (Figure 44) lists the various maintenance options.
Procedure: At the main menu, type 3 and press ENTER. The Maintenance Menu shown
below is displayed. To return to the main menu, press ENTER.
3-Maintenance
30 BATTERY TEST
OPTIONS
The start-stop for the Battery Test/Self Test is initiated here. The test duration is user
programmable in 1 minute intervals from 1 to 255 minutes. The factory default setting is 1
minute.
(Tip: The time duration can be changed only when BBS is in Line Mode.)
31 OUTPUT SHUTDOWN This allows output to be switched OFF or Shutdown. MP2000 switches to STANDBY mode when
this option is activated.
32
NVERTER ON/OFF
1. During the BATTERY or STANDBY mode, this option allows the inverter to be switched OFF
or turned ON after the user-programmable delay time.
2. The delay can be user-programmable in 0.5 second steps from 0 to a maximum setting of
255 steps (128 seconds). The delay is only available in BATTERY or STANDBY modes. When
the unit returns to LINE mode, the delay resets back to a default of 0 seconds.
Thus, during a battery discharge or ON BATTERY mode, operator can stop the inverter
immediately after user programmable delay time of 0 seconds to a maximum of 300
seconds, prior to making the intersection dark.
33 CHANGE PASSWORD
This options allows for the change of password. The factory set default password is 1111.
(Tip: The password can only be changed in LINE mode.)
34 LINE QUALIFY
TIME
When the input power returns and it is qualified, I.e. it is within exceptable range, the transfer
from BATTERY mode to LINE mode is delayed by user programmed 3/10/30 seconds herein
that allows the returned utility power to settle down. The factory set default value is 30 seconds.
35 BATTERY
VOLTAGE LEVEL %
Capacity Remaining
The level for the LOW BATTERY ALARM is set here. The VOLTAGE level is user
programmable in 0.5VDC incements from 42VDC to 55VDC. (The factory default setting is
47.5VDC or 40%.) The relationship between remaining % capacity of battery and its DC Voltage
depends on the characteristics of the batteries used.
36 LOAD SHED TIMER
ON/OFF (Available in
Battery Mode only)
The programmable timer contacts are manually activated/deactivated ON DEMAND using this
option. Certain loads/signals connected to this timer can be shed or dropped earlier to extend
the backup time.
This function is available only in BATTERY mode.
37 RESET THE
EVENT/TIMER
COUNTERS (Available in
Line Mode)
Resets EVENT to 0
Resets TIMER to 0
38 BATTERY CHARGING
TEMPERATURE
COMPENSATION Temperature compensated smart charger is utilized in MP2000. The rate of charging is
adjusted here based on the battery case temperature. The factory default value is set at -
3mv/°C. It can be configured to -2.5 with -3, -4, & -5mV/ºC.
39 EXT. FAN ON/OFF
BY TEMPERATURE
Set the temperature in Celsius, above which the 48VDC power will be provided for external
cooling fan. The temperature can be set in 1° increment from 20° to 55°C.
The factory default temperature is set at +25°C.
Figure 44
Maintenance Menu