GW Instek PEL-3000 Series User Manual - Manual (Page 207)

APPENDIX
205
Range Switch Input
Switch ranges L, M, and H using a 2-bit signal
Range Status Output
Outputs range L, M, or H using 2-bit signal (open collector output
by a photocoupler)
Trigger Input
Clear the sequence operation pause with a high TTL level signal for
10 μs or more.
Alarm Input
Activate alarm with low TTL level signal input
Alarm Status Output
On when OVP, OCP, OPP, OHP, UVP, RVP, or when an external
alarm input is applied (open collector output by a photocoupler)
Short Signal Output
Relay contact output (30 VDC/1 A)
External Voltage Control
Operates in CC, CR, CP, or CV mode
0 V to 10 V correspond to 0 % to 100 % of the rated current (CC
mode), rated voltage (CV mode), or rated power (CP mode).
0 V to 10 V correspond to maximum resistance to minimum
resistance (CR mode)
External Resistance Control
Operates in CC, CR, CP, or CV mode
0 Ω to 10 kΩ correspond to 0 % to 100 % or 100 % to 0 % of the
rated current (CC mode), rated voltage (CV mode), or rated power
(CP mode).
0 Ω to 10 kΩ correspond to maximum resistance to minimum
resistance or minimum resistance to maximum resistance (CR
mode)
Current Monitor Output
10 V f.s (H or L range) and 1 V f.s (M range)
Parallel Operation Input
Signal input for one-control parallel operation
Parallel Operation Output
Signal input for one-control parallel operation
Load Boost Power Supply Control
Power on/off control signal for the load booster