Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 50)

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The motor is running with parameter 3-19 Jog Speed [RPM] .
1. Jog was selected as function for a digital input (parameter group 5-1). The
corresponding terminal (e.g. Terminal 29) is active.
2. The Jog function is activated via the serial communication.
3. The Jog function was selected as a reaction for a monitoring function (e.g. No
signal). The monitoring function is active.
Motor check In parameter 1-80 Function at Stop , the Motor check function was selected. A stop
command, e.g. Stop (inverse) is active. To ensure that a motor is connected to the
drive, a permanent test current is applied to the motor.
PowerUnit Off Only with controllers with installed option (external 24 V supply). The mains supply to
the controller is cut off, but the control card is still supplied with 24 V.
Protection md The unit has detected a critical status (e.g. an overcurrent or overvoltage). To avoid
tripping the controller (alarm), protection mode is activated, which includes reducing
the switching frequency to 4 kHz. If possible, protection mode ends after approximately
10 sec. Activation of protection mode can be restricted by adjusting the parameter 14-
26 Trip Delay at Inverter Fault.
The motor is stopped using a quick stop ramp parameter 3-81
Quick Stop Ramp
Time .
1. Quick stop inverse was chosen as a function for a digital input (parameter group 5-
1). The corresponding terminal (e.g. Terminal 27) is not active.
2. The Quick stop function was activated via serial communication.
Ramping The motor is accelerating/decelerating using the active Ramp Up/Down. The
reference, a limit value or a standstill is not yet reached.
The output frequency is corrected by the value set in parameter 3-12 Catch Up/Slow
Down Value .
1. Speed down was selected as a function for a digital input (parameter group 5-1).
The corresponding terminal is active.
2. Speed down was activated via serial communication.
Ref. high In parameter 4-55 Warning Reference High a reference high limit is set. The sum of
all active references is above the reference limit.
Ref. low In parameter 4-55 Warning Reference High a reference low limit is set. The sum of
all active references is below the reference limit.
Pre-magnetize Pre-magnetization is selected in parameter 1-80 Function at Stop . A stop command
(e.g. Stop inverse) is activated. A suitable constant magnetizing current is applied to
the motor.
QStop
Jogging
OVC control Overvoltage control is activated in parameter 2-17 Over-voltage Control . The
connected motor is supplying the drive with generative energy. The Overvoltage control
adjusts the V/Hz ratio to run the motor in controlled mode and to prevent the drive from
tripping.
Run on ref. The drive is running in the reference range. The feedback value matches the set
reference value.
Run request A start command has been given, but the motor will be stopped until a run permissive
signal is received via digital input.
Running The motor is driven by the drive, the ramping phase is done and the motor revolutions
are outside the
On Reference range. Occurs when one of the motor speed limits
(Parameter 4-11/4-12/4-13 or 4-14) is set, but the maximum reference is outside this
range.
Sleep Mode The energy saving function in parameter 403 Sleep Mode Timer is enabled. This
means that at present the motor has stopped, but that it will restart automatically when
required.
Speed down
Table 7-1. Status Message Definitions (continued)