Hitachi SJ7002 Series Instruction Manual page 128

Func.
Code
B078 Clear cumulative input power
data
Set = 01, press STR key to clear
B079 Cumulative input power display gain setting
B082 Start frequency adjustment
Sets the starting frequency for the inverter output
B083 Carrier frequency setting
Sets the PWM carrier (internal switching freq.);
all models are subject to derating
B084 Initialization mode (parameters
or trip history)
B085 Country code for initialization
Select default parameter values
for country on initialization
B086 Frequency scaling conversion factor
Specify a constant to scale D007 to display in
engineering units
B087 STOP key enable
Select whether the STOP key on
the keypad is enabled (req.
A002=01, 03, 04, or 05)
Clearwater Tech - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.clrwtr.com - Email: info@clrwtr.com
B084, B085: Initialization codes – These functions allow you to restore the factory default
settings. Please refer to
B086: Frequency display scaling – You can convert the output frequency monitor on D001 to
a scaled number (engineering units) monitored at function D007. For example, the motor may
run a conveyor that is monitored in feet per minute. Use this formula:
Scaled output frequency (D007)
Keypad
Name/
Description
SRW
CNT
CLR
TRP
DATA
TRP/
DATA
JPN
EUR
USA
ON
OFF
S-OFF
B091/B088: Stop Mode / Restart Mode Configuration – You can configure how the inverter
performs a standard stop (each time Run FWD and REV signals turn OFF). Setting B091 deter-
mines whether the inverter will control the deceleration, or whether it will perform a free-run
stop (coast to a stop). When using the free-run stop selection, it is imperative to also configure
how you want the inverter to resume control of motor speed. Setting B088 determines whether
the inverter will ensure the motor always resumes at 0 Hz, or whether the motor resumes from
its current coasting speed (also called frequency matching). The Run command may turn OFF
briefly, allowing the motor to coast to a slower speed from which normal operation can resume.
In most applications a controlled deceleration is desirable, corresponding to B091=00.
However, applications such as HVAC fan control will often use a free-run stop (B091=01). This
practice decreases dynamic stress on system components, prolonging system life. In this case,
you will typically set B088=01 in order to resume from the current speed after a free-run stop
(see diagram below, right). Note that using the default setting, B088=00, can cause trip events
when the inverter attempts to force the load quickly to zero speed.
"Restoring Factory Default Settings" on page
= Output frequency (D001)
Range and Settings
OPE
00
No change
0 1
Clear the data
1. to 1000.
0.10 to 9.99 (Hz)
Most models, 0.5 to 15.0 (kHz);
-1850 and -3150 are 0.5 to 10 (kHz);
-4000 is 0.5 to 3 (kHz)
00
Trip history clear
0 1
Parameter initialization
02
Trip history clear and parameter
initialization
00
Japan version
0 1
Europe version
02
USA version
0.1 to 99.9
00
Enable
0 1
Disable
02
Disable only the STOP function
3–45
SJ700 Inverter
2
6–16.
×
Factor (B086)
Defaults
Run
Mode
FEF2 FUF2 FF2
Edit
FE2 FU2 F2
Lo Hi
(EU) (USA) (Jpn)
✔ ✔
00 00 00
✔ ✔
1. 1. 1.
✘ ✔
0.50 0.50 0.50
✘ ✔
3.0 3.0 3.0
2.1 2.1 2.1
✘ ✔
1.9 1.9 1.9
✘ ✘
00 00 00
✘ ✘
01 02 00
✔ ✔
1.0 1.0 1.0
✘ ✔
00 00 00