User manual

GMC-I Gossen-Metrawatt GmbH 23
U
set
Uext +
Uext –
14
15
Uext +, Uext – (input)
• Analog (differential) voltage input with reference to AGND for controlling
the output voltage setpoint.
The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/
AI_U on):
Uset = USET + ku x U(Uext +) – ku x U(Uext –)
Uset = Resulting output voltage setpoint
USET =
Voltage setpoint, selected manually or digitally
U(Uext+) = External control voltage (0 ... 5 V 0 ... +Usetnom)
with reference to AGND 1
U(Uext –) = External control voltage (0 ... 5 V 0 ... –Usetnom)
with reference to AGND 1
ku = Control coefficient = Usetnom / 5 V
Usetnom = 60 V (SYSKON P1500-060-060)
• Input impedance: a total of 10 k Ω each to AGND (1)
I
set
Iext +
Iext –
15
16
Iext +, Iext – (input)
• Analog (differential) voltage input with reference to AGND for controlling
the output current setpoint.
The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/
AI_I on):
Iset = ISET + ki x U(Iext +) – ki x U(Iext –)
Iset = Resulting output current setpoint
ISET = Current setpoint which has been selected manually or dig-
itally
U(Iext +) = External control voltage (0 ... 5 V 0 ... –Isetnom)
with reference to AGND 1
U(Iext –) = External control voltage (0 ... 5 V 0 ... –Isetnom)
with reference to AGND 1
ki = Control coefficient = Isetnom / 5 V
Isetnom = 60 A (SYSKON P1500-060-060)
• Input impedance: a total of 10 k Ω each to AGND (1)
Monitor
UMON
IMON
17
18
U MON (output)
• Analog voltage output with reference to AGND (1).
Voltage is proportional to output voltage Uout detected by the sensing
leads.
0 ... 10 V 0 ... Uoutnom.
Uoutnom = 60 V (SYSKON P1500-060-060)
• The output has an internal resistance of 8 kΩ and is short-circuit proof.
I MON (output)
• Analog voltage output with reference to AGND (1).
Voltage is proportional to internally measured output current Iout.
0 ... 10 V 0 ... Ioutnom.
Ioutnom = 60 A (SYSKON P1500-060-060).
• The output has an internal resistance of 8 kΩ and is short-circuit proof.
Sense
SENSE +
SENSE –
19
20
SENSE +, SENSE – (input)
• For connection of sensing leads for 4-wire operation – allows for
compensation of voltage drops (to 2 x 1 V) at long leads.
• Switching to 4-wire operation takes place automatically when the
SENSE – lead is connected to the appropriate output pole or negative
load pole.
Interface
Type
Circuit Diagram Func-
tion
Termi-
nal
Meaning
9 k
1 k
0 to 5 V
9 k
1 k
0 to 5 V
9 k
1k
9 k
1k
8 k
8 k
0 to 10 V
U
I
0 to 10 V
1
2
31
2
3
Sense Control
U-Monitor
–OUT
+OUT