Troubleshooting Tips; System Troubleshooting; Terminal Strip Connections; Dipswitch Positions - Seco DS9000 Installation & Operation Manual

Ac drive digital speed controller
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7.2

TROUBLESHOOTING TIPS

7.2.1

SYSTEM TROUBLESHOOTING

If the system is not operating as it should, the best approach is to divide the total system into its basic
components and decide which ones could be contributing to the problem. These basic system blocks
would include the DS9000, Motor Controller, Motor, Operators (Start, Stop, Run/Jog, Auto/Manual,
etc), feedback devices, AC input and interconnection wiring.
7.2.2

TERMINAL STRIP CONNECTIONS

A frequent cause of many types of system malfunctions can be traced to loose wire connections or
miswired connections. Check all terminal strip connections for tightness or misconnections. A
misconnection is more likely to occur during the initial start-up than during normal operations.
7.2.3
DIPSWITCH POSITION
Contact closure input changes to the DS9000 will not be recognized when in PROG mode. When you
move out of PROG mode, the DS9000 will update the status of the inputs. The parameter data tables,
A or B, can only be changed in the stopped state, (no Start input).
Since the DS9000 is designed to be flexible in its use for varied applications, the improper placement
of any of the DS90090 Dipswitches can cause improper operation. You should keep a list of the
correct Dipswitch connections for easy referral in case one gets accidentally switched to the wrong
position. For your convenience, use the worksheets found in Section 8.0.
7.2.4

DATA PARAMETERS

Just as the Dipswitches are designed for flexibility, the parameters are also used to allow easy
adjustment to suit your applications. If any of these are improperly changed, the operation of your
system may be impaired. A list of parameter values should be kept handy to allow for easy cross-
reference. For your convenience, use the worksheets found in Section 8.0.
7.2.5

VOLTAGE CHECKS

To assist in your system troubleshooting the following voltage checks could be made.
TB1-2 to TB1-1
TB1-3 to TB1-12
TB1-4 to TB1-12
TB1-5 to TB1-12
TB1-6 to TB1-12
AC INPUT
BROWN TO BLUE
TB3-1 to TB3-2
TB1-10 to TB1-12
7.2.6

PULSE TRAIN INPUT (FEEDBACK AND REFERENCE INPUT)

When used in the zero-crossing configuration (DipSw 3 or 4 down), the DS9000 is capable of sensing
signals of less than 30mV. Therefore proper shielding of all signal wires is required (i.e. low output
voltage from the sensor). If a problem does occur, as evident by the motor not running at low speeds,
insure that the drive and motor are properly grounded. Also, a small resistor (1000) across the mag-
sensor terminals can help eliminate low levels of noise coupling. An easy way to verify a noise
Typically +/-24VDC when started, OV when stopped.
5 VDC when Parameter Data Table A is selected. 0 VDC when
Parameter Data Table B is selected.
5 VDC when Speed Group A is selected
0 VDC when Speed Group B is selected.
5 VDC selects PS1 if Group A, PS3 if Group B. 0 VDC selects PS2 if
Group A, PS4 if Group B.
5 VDC if security mode is off.
0 VDC if security mode is on.
AC input voltage.
Jumpers on TB2-1 to TB2-2 and TB2-3 to TB2-4 for 115 VAC, jumper
on TB2-2 to TB2-3 for 230 VAC.
DC analog output, 0-10 VDC depending on programmed speed. 0-
10VDC represents zero to full speed.
+5 VDC power supply
39

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