8 overcurrent protection circuit operation test, Caution, Pwm outupt settings – Yokogawa PC-Based MX100 User Manual
Page 79

2-50
SM MX100-01E
2.10.8 Overcurrent Protection Circuit Operation Test
Wire the units as in the figure below, enter all settings (PWM output settings), then
confirm that the criteria are met.
The wiring diagram shows an example of wiring CH5. Actual measurment should be
performed on all channels.
Use an external power supply of 5 V or 12 V, and load resistance of 5 Ω.
Caution
For this test, set an output of 100.000% on each channel under test, and 0.000%
for all other channels. With other tests, the fuses in the internal circuitry can blow
if multiple channels are turned ON at the same time.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
+
-
100Ω
Counter +
-
5V
V+
-
5Ch
V+
-
6Ch
V+
-
7Ch
V+
-
8Ch
+
-
Vext
+
-
Vext
V+
-
4Ch
V+
-
3Ch
V+
-
2Ch
V+
-
1Ch
Puls interval check and puls duty check wiring diagram
DC
Power
supply
PWM Outupt Settings
When using the MX100/DARWIN API for settings, enter settings that are equivalent to
the following.
Item
Setting
Remarks
Enable/disable
Enabled
Action
User output
Span
Need not specify
Output upon power ON
Preset value
Sets the output at power ON as a preset value.
Output upon error
Preset value
Sets the output upon error as a preset value.
Preset value
0.000 %
Sets 0% duty.
Pulse interval
10 ms
Other settings
Not required
2.10 8-CH, Medium-Speed PWM Output Module