Chroma 61603 User Manual

Programmable AC Source 61601/61602/61603/61604 User’s Manual
6-2
1. Press ENTER to ignore the NG.
2. If no PROTECTION, press PAGE/EXIT to change to MAIN PAGE.
3. Program a small voltage as 10Vac then press OUT/QUIT, see the measurement from
LCD display if V is about 10V or not.
If the reading of V is about 10V, the AC source needs to calibrate (see Chapter 4). If the
reading does not change apparently or show an unreasonable value, or display shows
PROTECTION, the AC source does have some problems. Consult your dealer for
assistance.
6.3 Troubleshooting
The following table lists the operating problems and suggests corrective actions:
Problem
Reason
Solution
Poor measurement
of V, I.
Aging of components result in
deviation of characteristics.
Periodic calibration is required.
Refer to Chapter 4. Calibration.
Distorted output
1. The AC source output
voltage is too low.
2. The rectified load is too large
at high frequency.
1. Program higher output
voltage.
2.
Reduce the load or lower the
output frequency.
OVER TEMP
protection (OTP)
1. Ambient temperature is too
high.
2. Air way is obstructed.
1. Operate the unit 0 ~ 40°C
2. Unblock the air way.
OVER POWER
protection (OPP)
The output power is over
specification.
Remove the over power or lower
down output voltage.
OVER CURRENT
protection (OCP)
The output current is over
specification or I LIMIT.
Remove the overload or relax the I
LIMIT.
OUTPUT SHORT
protection
1. The output is shorted.
2. External current reverse.
1. Remove the short.
2. Remove the load.
INPUT FAIL
protection (UVP)
The AC source line input voltage
is too low or too high.
Measure input voltage, and
regulate it if it's over specification.
INT _ AD protection
1. Line input voltage cycle
dropout.
2. Instant over current of output.
3. AD power stage damaged.
1. Check the stability of input
voltage.
2. Remove the load.
3. If cannot reset the status of
protection, consult the dealer
for assistance.
INT _ DD protection
1. Line input voltage cycle
dropout.
2. Instant over current of output.
3. DD power stage damaged.
1. Check the stability of input
voltage.
2. Remove the load.
3. If cannot reset the status of
protection, consult the dealer
for assistance.
OUTPUT OVP
protection
1. Remote sense is open.
2. Output voltage peak is over
range.
1. Connect the output to remote
sense terminals.
2.
Check the settings of Vac and
Vdc on MAIN PAGE.
Cannot control AC
source by GPIB
1. The AC source unit address
is incorrect.
2. GPIB cable is loose at rear.
1. Update address.
2. Check connection, tighten the
screws.

Chroma 61603 Specifications

General

Brand	Chroma
Model	61603
Category	Power Supply
Language	English