BK Precision MDL4U Series, Руководство пользователя

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Installation 24
2.7 Turn-On Checkout
When you turn on the electronic load, the front-panel display will light up briefly while the electronic load performs its
power-on self-test. The following table shows the procedure of the self-test.
Mainframe VFD Display Description
BIOS Ver 1.20 VFD displays software version
SYSTEM SELF TEST System self-check
CH1/2/3/4/5/6/7/8
SCAN...
.7.5.3.1
Detecting all installed modules
e.g.CH01 CV OFF
Vdc=0.0000V Adc=0.0000A
Wdc= 0.00W
Displays information of channel 1 or the leftmost channel. Use up and
down key to select other channels.
Table 2.1 Turn-On Procedure
Warning:
Your electronic load is equipped with a 3-wire grounding type power cord; the third conductor being
ground. The electronic load is grounded only when the power-line cord is plugged into an appropriate
receptacle. Do not operate your power supply without adequate cabinet ground connection.
2.8 If the Electronic Load Does Not Turn On.
Use the following troubleshooting steps to help solve problems you might encounter when turning on the instrument:
1. Verify that there is AC power to the electroic load.
First, verify that the power cord is firmly plugged into the power receptacle on the rear panel of the electronic load.
You should also make sure the power source you plugged the electronic load into is energized. Then check to see
that the electronic load is turned on.
2. Verify the power line voltage setting.
The line voltage is set to the proper value for your country (110VAC or 220VAC) when the electronic load is shipped
from factory. Change the line voltage setting if it is not correct.
3. Verify that the correct power line fuse is installed and not burned out.
If fuse is blown, please replace it according to the following specification.
Product Fuse specification (110 VAC) Fuse Specification (220 VAC)
MDL4U001 T5A, 250 V T2.5A, 250 V
MDL4U002 T5A, 250V T2.5A, 250 V
Table 2.2 Fuse Specifications
4. Replace fuse.
Use a flat-bladed screwdriver to open the small plastic cover under the AC input connector on the rear panel of the
load and then replace with matching fuse.