Section 4-Operator Console Modes; Alarm Mode - nvent 910 Series Installation, Operating And Maintenance Instructions

SECTION 4—OPERATOR CONSOLE MODES

4.1 ALARM MODE

18 | nVent.com
The Alarm mode is invoked when you press the SHIFT key followed by the ALARM key. This
mode allows you to examine and reset any alarms that may exist. Use ▿ (▵) to examine the
next (previous) active alarm.
4.1.1 RESETTING ONE ALARM
To reset an alarm, press ▹. You are prompted for confirmation; answering YES resets the alarm
and advances you to the next alarm.
4.1.2 RESETTING ALL ALARMS
To reset all active alarms, press ▹. You are prompted for confirmation; press to select
ALL and press ▹ to accept.
4.1.3 MONITOR MODE TRACKING
The Monitor mode "tracks" the Alarm mode. If the Monitor mode is selected while viewing an
alarm, the controller will enter the MONITOR menu and display an appropriate reading.
For example, if you are examining a High Load Current Alarm and then select the Monitor
mode, the starting point within the MONITOR menu will be the load current reading. Once the
Monitor mode has been selected, you may move around in the menu using ▿ and ▵ .
4.1.4 ALARM MESSAGES
Table 4.1 lists sample alarms and the corresponding starting point in the Monitor mode menu,
if it is invoked from the Alarm mode.
Table 4.1 Alarm Messages
Sample Alarm
LO TS 1
HI TS 1
TS 1 FAIL
LO TS 2
HI TS 2
TS 2 FAIL
CTL TS FAIL
LO LOAD
HI LOAD
HI GFI
GFI TRIP
LO VOLT
HI VOLT
LO RESIST
HI RESIST
OVERCURRENT TRIP
SWITCH FAIL
HTC RESET
SWITCH LIMITING
C.B. LIMITING
POWER LIMITING
EEROM DATA FAIL
CONTACTOR COUNT
Message
= –2°C
= 102°C
= ALARM
= –4°C
= 105°C
= ALARM
= ALARM
= 0.5 A
= 21.0 A
= 52 mA
= 77 mA
= 85 V
= 140 V
= 3.38 Ω
= 9.24 Ω
= ALARM
= ALARM
= ALARM
= ALARM
= ALARM
= ALARM
= ALARM
= 200000
Monitor Mode Starting Point
TS 1 temperature
TS 1 temperature
TS 1 temperature
TS 2 temperature
TS 2 temperature
TS 2 temperature
Control temperature
Load current
Load current
Ground fault current
Ground fault current
Voltage
Voltage
Resistance
Resistance
Load current
Load current
Time since last reset
Load current
Load current
Power
n/a
Contactor cycle count