User manual

16 GMC-I Gossen-Metrawatt GmbH
5 Controls, Display Elements and Terminals
5.1 Front Panel
Protective Functions and Status Displays
OTP/OVP LED lights up Overtemperature protection triggered or
output voltage ≥ 80 V exceeded, Ö OUTPUT = off
OVP LED lights up Overvoltage detection triggered,
ovset and ovdly parameter values exceeded
(prerequisite: ovp parameter = on) Ö OUTPUT = off
OCP LED lights up Overcurrent detection triggered,
oCset and oCdly parameters exceeded
(prerequisite: oCp parameter = on) Ö OUTPUT = off
OVP ON LED lights up Overvoltage shutdown is activated
(ovp parameter in device setup menu = on)
OCP ON LED lights up Overcurrent shutdown is activated
(oCp parameter in device setup menu = on)
Control Mode Status Display
CV LED lights up Constant voltage regulating mode: Uout ≈ Uset
Plim LED lights up Pout > Pnom
CC LED lights up Constant current regulating mode: Iout ≈ Iset
Mains Switch
POWER LED lights up Device is switched on
POWER switch Switches the device on and off
Power Output On/Off Key
OUTPUT LED lights up Output is active
OUTPUT switch Switches the power output on and off
Rotary Encoder for Voltage
Voltage setpoint Uset – adjust output voltage Uset
Condition: UL_L (lower setting limit) ≤ Uset ≤ UL_H (upper setting limit)
When the rotary encoder is activated the display is switched to Uset (LED) and the cursor becomes active – the selected decimal
place blinks at the display and can be selected with the
Y and Z scroll keys.
The new setpoint becomes effective immediately.
1
4
5
6
1214
Rack mounting tabs
Front handles
2
Device feet
3
Events
Settings
Display A
Standard display: measured
voltage value Uout, display
function is changed by pressing
the SELECT A key or by
turning the rotary knob. Adjust
resolution (select decimal place)
with the
Y and Z scroll keys
Select A
Display selection:
Uout → Uset → OVset → Pset
Uset adjusting alternatives
Activate by turning the rotary encoder, or select with Select A Uset
Scroll keys
Y Z: select decimal place UV: immediately increase or reduce Uset
Numeric keypad Entry of numeric values, Uset LED blinks Execute with
↵, or abort with ESC