Chapter 5: Keypad Menu Items and Parameters
5.4.11 – ‘Parameters’ Menu (continued)
Firing Mode
Range: 0 to 1
Default: 0
Scaling: 1
Type: R/W
‘Firing Mode’:
• 0 = Normal Motor (outside delta or star/wye)
• 1 = Delta (inside delta no optimizing)
Protection
Range: 0 to 192
Default: 192
Scaling: 1
Type: R/W
‘Protection Mode’ controls which trips are available:
• 64 = FULL = full protection with full volts after top of ramp; optimizing function turned off
• 192 = FULL+OPTIMIZE = full prot optimize
• 128 = START+BYPASS = protection during start; then bypass
• 0 = PHASE LOSS ONLY = I/p phase loss detection only
Start and Optimize mode is forced to ‘FULL’ Protection Mode when ‘Delta’ Firing Mode is selected
(P-6 = 1). In ‘PHASE LOSS ONLY’ Protection Mode (P-7 = 0), the bottom 12.5% of starter current
is ignored after TOR (Top Of Ramp).
(P-78 ‘Protection Mode 2’ is the second parameter set counterpart of P-7 ‘Protection Mode’.)
Status 1
Range: 0 to 255 (flags)
Default: 0
Scaling: 1
Type: R
‘Status 1’ flags – Read this parameter by individual bits.
• Bit #:
0: Stopped – start/stop signal inactive thyristors off main contactor open.
1: Starting – starter is in start ramp.
2: Current Limit – during a softstart – indicates motor has reached Current Limit level, and ramp is
being held.
«•» This parameter bit is not fully functional in Bypass Operation unless a user-supplied external
current transformer is installed. (Refer to P18/B2, ‘Auto Bypass’.)
3: Top of Ramp – the unit has finished the Start Ramp and any Current Limit.
4: Dwell – period of time at end of Start Ramp where motor is held at full volts before entering
optimizing – to allow the load to stabilize, and to ensure that it is up to speed.
5: Full Conduction – thyristors are fully on.
6: Energy Saving – starter is monitoring motor power factor and adjusting applied voltage to bring it
close to optimum.
7: Stopping – starter is performing a Stop Ramp.
P-6
P-7
P-8
An in-line isolation contactor controlled by the soft starter MUST be used with the In-Delta
Firing Mode and motor connections.
SR44 Series Soft Starter User Manual
1st Ed, Rev B 07/31/2019
5–50
Содержание Stellar SR44
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